Skin Structure and Skin Conditions
95 Questions
9 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of these structures or substances in the skin helps prevent UV radiation from damaging deep structures of the skin?

  • Sebaceous glands
  • Melanin (correct)
  • Keratin
  • Collagen fibers
  • Keratinocytes

    • Signs and symptoms listed in the ABCDE rule would apply to which condition?

  • Squamous cell carcinoma
  • Herpes zoster
  • Alopecia
  • Basal cell carcinoma
  • Melanoma (correct)

    • When the skin is injured, inflammation follows. One effect of this response is that it __.

  • decreases nutrients to the area
  • prevents hemorrhage
  • decreases blood supply to the area
  • decreases swelling
  • carries defensive cells to the area (correct)

    • The extent of a burn injury is estimated by __.

    <p>using the rule of nines</p> Signup and view all the answers

    Julio called this morning and asked to be seen today if possible. You fit him into the schedule and he arrives at your office with a red face that looks painful. He states that the gas stove flashed in his face when he was lighting it. You note that facial hair has been burned, but there are no blisters. Your best first response is to __.

    <p>check his vital signs and put ice on the burned area</p> Signup and view all the answers

    Your best response to a burn where the shirt is sticking to the burned area, extending from the upper arm to the mid-forearm after contact with a hot motor, is to:

    <p>Cool the burn with large amounts of water</p> Signup and view all the answers

    The skin plays a role in regulating body temperature primarily by:

    <p>Dilating or constricting blood vessels in the skin</p> Signup and view all the answers

    Which of the following is mostly adipose tissue?

    <p>Hypodermis</p> Signup and view all the answers

    In which layer of skin are keratinocyte cells located?

    <p>Epidermis</p> Signup and view all the answers

    Melanin, which helps protect underlying layers of skin from UV radiation, is deposited throughout the:

    <p>Epidermis</p> Signup and view all the answers

    Which skin layer contains all of the major tissue types, including epithelial tissue, connective tissues, muscle tissue, and nervous tissue?

    <p>Dermis</p> Signup and view all the answers

    Keratin is a durable protein that makes which skin layer waterproof and resistant to bacteria and viruses?

    <p>Epidermis</p> Signup and view all the answers

    Sweat glands are found in the ____.

    <p>Dermis</p> Signup and view all the answers

    When the supply of oxygen in the blood is low, what color would the skin appear?

    <p>Bluish</p> Signup and view all the answers

    A person with a rich supply of oxygenated blood will have what hue of skin color?

    <p>Pink</p> Signup and view all the answers

    The most aggressive skin cancer is ____.

    <p>Melanoma</p> Signup and view all the answers

    What is the most common skin cancer?

    <p>Basal cell carcinoma</p> Signup and view all the answers

    Which of the following begins in the flat cells of the epidermis?

    <p>Squamous cell carcinoma</p> Signup and view all the answers

    A ____ often begins with a mole.

    <p>melanoma</p> Signup and view all the answers

    Which of the following conditions may require chemotherapy?

    <p>Basal cell carcinoma</p> Signup and view all the answers

    Which of the following diseases or disorders has five stages?

    <p>Melanoma</p> Signup and view all the answers

    What are the causes of eczema?

    <p>Hormonal</p> Signup and view all the answers

    Which of the following causes herpes simplex?

    <p>A virus</p> Signup and view all the answers

    Rosacea results from dilation of small facial blood vessels; the cause of this dilation is ____.

    <p>Unknown</p> Signup and view all the answers

    Pediculosis, which comes in three forms, is caused by which of the following?

    <p>Lice</p> Signup and view all the answers

    Cellulitis is an inflammation of connective tissues in skin caused by ____.

    <p>bacteria</p> Signup and view all the answers

    Which of these skin problems requires treating the whole family?

    <p>Scabies</p> Signup and view all the answers

    Which of these skin problems can be caused by excessive rubbing of the skin?

    <p>Dermatitis</p> Signup and view all the answers

    Which of these skin problems is an inherited autoimmune disorder?

    <p>Psoriasis</p> Signup and view all the answers

    Which skin condition has characteristics of itchy, silvery, scaly lesions?

    <p>Psoriasis</p> Signup and view all the answers

    Which of the following are mites that burrow beneath the skin?

    <p>Scabies</p> Signup and view all the answers

    Which of the following is associated with eccrine sweat glands?

    <p>Activated by nervousness or stress</p> Signup and view all the answers

    Which of the following is not associated with eccrine sweat glands?

    <p>Cause loss of body heat</p> Signup and view all the answers

    Which characteristic is associated with apocrine sweat glands?

    <p>Produces sweat with a high amount of protein</p> Signup and view all the answers

    Apocrine sweat glands are not associated with which of the following?

    <p>Produce thicker sweat than eccrine glands</p> Signup and view all the answers

    A burn that causes only pain, swelling, and redness is a ____?

    <p>First-degree burn</p> Signup and view all the answers

    Which type of burn involves the epidermis and dermis but does not affect muscles or bones?

    <p>Second-degree</p> Signup and view all the answers

    Which type of burn involves all layers of the skin and often the muscles and bones?

    <p>Full-thickness</p> Signup and view all the answers

    Barry has come to the medical office today because he has a small sore on the back of his left forearm that appeared three months ago and has not gone away. The sore is smooth and red and has a slight waxy sheen. Given the appearance of this sore, which of the following skin disorders would the practitioner test for?

    <p>Basal cell carcinoma</p> Signup and view all the answers

    Joanne is in the office today because of a rash that is occurring down one side of her back and thigh. She is obviously in great pain and the rash is beginning to blister in places. Which of the following questions would help the provider make a diagnosis in this case?

    <p>Have you noticed any similar symptoms in other family members?</p> Signup and view all the answers

    A painful rash occurring down one side of a patient's back and thigh that is beginning to blister in places is indicative of what disease?

    <p>Shingles</p> Signup and view all the answers

    What is the term for hair loss?

    <p>Alopecia</p> Signup and view all the answers

    What type of sweat glands produce a thicker type of sweat that contains more proteins?

    <p>Apocrine</p> Signup and view all the answers

    What is the term for the inflammation of connective tissues in skin caused by staphylococcal and streptococcal bacteria?

    <p>Cellulitis</p> Signup and view all the answers

    What is the term for the bluish color of the skin when the supply of oxygen in the blood is low?

    <p>Cyanosis</p> Signup and view all the answers

    What are the muscles attached to hair follicles that cause goose bumps?

    <p>Arrector pili</p> Signup and view all the answers

    What is the term for inflammation of the skin or a rash that can have many causes?

    <p>Dermatitis</p> Signup and view all the answers

    Which layer of the skin is deep to the epidermis and contains all the major types?

    <p>Dermis</p> Signup and view all the answers

    What is the term for a painful blistering rash that occurs along the skin area along the pathway of the affected nerve root?

    <p>Shingles</p> Signup and view all the answers

    What is the most superficial layer of the skin and is made up of many layers of tightly packed cells?

    <p>Epidermis</p> Signup and view all the answers

    What is the term for a type of chronic dermatitis that has acute phases and is thought to be a type of allergy or the result of an underlying inflammatory condition?

    <p>Eczema</p> Signup and view all the answers

    What is another name for the subcutaneous layer of skin?

    <p>Hypodermis</p> Signup and view all the answers

    What is the term for the inflammation of hair follicles resulting from shaving or excess rubbing of skin areas?

    <p>Folliculitis</p> Signup and view all the answers

    What is the name of the virus that causes cold sores and genital herpes?

    <p>Herpes Simplex</p> Signup and view all the answers

    What is the term for the inflammation of connective tissues in skin caused by bacteria and fungi?

    <p>Cellulitis</p> Signup and view all the answers

    What is the name of the skin condition characterized by oozing lesions that eventually crust over with a distinctive honey-colored crust?

    <p>Impetigo</p> Signup and view all the answers

    What is the primary function of melanin in the skin?

    <p>To trap ultraviolet radiation and protect underlying skin layers</p> Signup and view all the answers

    Which type of cell is responsible for producing melanin?

    <p>Melanocyte</p> Signup and view all the answers

    What is the name of the white, half-moon-shaped area at the base of a nail?

    <p>Lunula</p> Signup and view all the answers

    What is the primary function of keratin in the skin?

    <p>To make the epidermis waterproof and resistant to bacteria and viruses</p> Signup and view all the answers

    What is the most common cell type found in the epidermis?

    <p>Keratinocyte</p> Signup and view all the answers

    What is the skin condition caused by parasitic lice?

    <p>Pediculosis</p> Signup and view all the answers

    Which skin disorder is characterized by recurring episodes of itching and redness with outbreaks of distinctive silvery, scaly skin lesions?

    <p>Psoriasis</p> Signup and view all the answers

    What is the skin disorder that commonly appears as facial redness, predominantly over the cheeks and nose?

    <p>Rosacea</p> Signup and view all the answers

    Which glands produce an oily substance called sebum that is secreted onto hairs to keep them soft and pliable and also to prevent bacteria from growing on the skin?

    <p>Sebaceous glands</p> Signup and view all the answers

    Which skin condition is highly contagious and requires treating an entire family if one member is infected?

    <p>Scabies</p> Signup and view all the answers

    Which glands produce an oily substance called sebum that is secreted onto hairs to keep them soft and pliable and also to prevent bacteria from growing on the skin?

    <p>Sebaceous glands</p> Signup and view all the answers

    An oily substance called _______ is secreted onto hairs to keep them soft and pliable and is eventually deposited onto skin to keep it soft as well.

    <p>Sebum</p> Signup and view all the answers

    The stratum _______ is the deepest layer of the epidermis.

    <p>Basale</p> Signup and view all the answers

    The most superficial layer of the epidermis is the stratum ______. Most of the cells in this layer are dead and very flat and form an impermeable layer for skin.

    <p>Corneum</p> Signup and view all the answers

    The ______ layer of skin is largely made up of adipose tissue and loose connective tissue and contains blood vessels and nerves.

    <p>Subcutaneous</p> Signup and view all the answers

    What type of glands are most located in the dermis of skin and are of two types: eccrine and apocrine?

    <p>Sudoriferous</p> Signup and view all the answers

    Which of the following types of ringworm occurs on the scalp?

    <p>Tinea capitis</p> Signup and view all the answers

    According to the ABCDE rule, a mole's diameter should not be greater than:

    <p>6mm</p> Signup and view all the answers

    What does the 'B' in the ABCDE rule stand for?

    <p>Border</p> Signup and view all the answers

    What is the significance of the 'C' in the ABCDE rule?

    <p>Color</p> Signup and view all the answers

    What should the color of a mole be according to the ABCDE rule?

    <p>Even and uniform</p> Signup and view all the answers

    What does the 'A' in the ABCDE rule used in evaluating melanoma stand for?

    <p>Asymmetry</p> Signup and view all the answers

    The E of the ABCDE rule used in evaluating melanoma is

    <p>Evolution</p> Signup and view all the answers

    What is the acronym for the seven cancer warning signs for adults as per the American Cancer Society?

    <p>CAUTION</p> Signup and view all the answers

    What type of receptors in the skin detect touch, heat, cold, and pain?

    <p>Sensory</p> Signup and view all the answers

    What is the term for a skin lesion that consists of a large blister or cluster of blisters?

    <p>Bulla</p> Signup and view all the answers

    What is the term for skin lesions that originate from disease or body changes?

    <p>Primary</p> Signup and view all the answers

    What type of excretion occurs through the skin in small amounts, including water and salts?

    <p>Perspiration</p> Signup and view all the answers

    What type of lesions are caused by a reaction to external traumas?

    <p>Secondary lesions</p> Signup and view all the answers

    What term is used to describe an overgrowth of scar tissue?

    <p>Keloid</p> Signup and view all the answers

    What type of skin anomalies are telangiectasias or ecchymoses?

    <p>Vascular lesions</p> Signup and view all the answers

    What term is used to describe bleeding disorders that cause pinpoint skin hemorrhages?

    <p>Petechiae</p> Signup and view all the answers

    What term is used to describe a scar inside a wound or tissue?

    <p>Cicatrix</p> Signup and view all the answers

    What is the term for an elevated, infected skin lesion that contains pus?

    <p>Pustule</p> Signup and view all the answers

    What are the characteristics of inflammation?

    <p>Redness, swelling, localized warmth, and pain</p> Signup and view all the answers

    What causes the redness around an inflamed area?

    <p>Dilation of nearby blood vessels</p> Signup and view all the answers

    What is the major component of scars?

    <p>Collagen</p> Signup and view all the answers

    What forms initially when the structures and blood vessels of the dermis are injured?

    <p>Blood clot</p> Signup and view all the answers

    Freckles and flat moles are examples of skin lesions known as _______.

    <p>Macule</p> Signup and view all the answers

    Study Notes

    Skin Protection

    • Melanin helps prevent UV radiation from damaging deep structures of the skin.

    Skin Conditions

    • The ABCDE rule applies to Melanoma.

    Inflammation Response

    • Inflammation carries defensive cells to the area when the skin is injured.

    Burn Injury

    • The extent of a burn injury is estimated using the rule of nines.
    • The thickness of the burn injury is used to classify the burn.

    Burn Care

    • When treating a burn, the first response is to check vital signs and apply ice to the burned area.
    • It is not necessary to call 911 for burns to the head unless they are severe.
    • Applying ointment to the burns should not be the first response.
    • Drinking cool water is not a priority in preventing shock.
    • Covering the burn is important to keep out bacteria.

    Burns and Wound Care

    • Kenneth, an auto mechanic, suffered a burn to his arm after accidentally coming into contact with a hot car motor, with a burned area extending from the upper arm to the mid-forearm.
    • The priority action is to not remove the shirt from the burned area to avoid causing further damage.

    Skin Functions

    • The skin regulates body temperature by dilating or constricting blood vessels in the skin.

    Skin Layers

    • The hypodermis is primarily composed of adipose tissue.
    • Keratinocyte cells are located in the epidermis layer of skin.
    • Melanin, which protects underlying skin layers from UV radiation, is deposited throughout the epidermis.

    Skin Layers and Components

    • The dermis layer contains all of the major tissue types, including epithelial tissue, connective tissues, muscle tissue, and nervous tissue.
    • Keratin, a durable protein, makes the epidermis layer waterproof and resistant to bacteria and viruses.

    Skin Glands

    • Sweat glands are found in the dermis layer.

    Skin Color and Oxygen Levels

    • When the supply of oxygen in the blood is low, the skin appears bluish.
    • A person with a rich supply of oxygenated blood will have a pink hue of skin color.

    Skin Cancer

    • Melanoma is the most aggressive type of skin cancer.

    Skin Conditions

    • A melanoma often begins with a mole.
    • Basal cell carcinoma begins in the basal cells of the epidermis.
    • Squamous cell carcinoma begins in the flat cells of the epidermis.

    Other Options

    • A verruca is a type of wart.
    • Alopecia is a condition related to hair loss.
    • Pediculosis is a condition related to lice infestation.

    Skin Structure and Function

    • Melanin helps prevent UV radiation from damaging deep skin structures.
    • Keratin makes skin waterproof and resistant to bacteria and viruses.

    Skin Injuries and Response

    • Inflammation response to skin injury helps carry defensive cells to the area.
    • The rule of nines is used to estimate the extent of a burn injury.

    Burn Care

    • When dealing with burns, it's essential to check vital signs and apply cool compresses to the burned area.
    • Removing clothing stuck to burned area and checking for airway swelling are important steps in burn care.

    Skin Layers

    • The epidermis contains keratinocyte cells.
    • The dermis is the skin layer that contains all major tissue types, including epithelial, connective, muscle, and nervous tissue.
    • The hypodermis is the layer composed mostly of adipose tissue.

    Skin Color

    • Low oxygen supply in the blood causes the skin to appear bluish.
    • A rich supply of oxygenated blood gives the skin a pink hue.

    Skin Cancer

    • Melanoma is the most aggressive skin cancer and often begins with a mole.
    • Basal cell carcinoma is the most common skin cancer.
    • Squamous cell carcinoma begins in the flat cells of the epidermis.

    Skin Structure and Function

    • Melanin helps prevent UV radiation from damaging deep skin structures.
    • Keratin makes skin waterproof and resistant to bacteria and viruses.

    Skin Injuries and Response

    • Inflammation response to skin injury helps carry defensive cells to the area.
    • The rule of nines is used to estimate the extent of a burn injury.

    Burn Care

    • When dealing with burns, it's essential to check vital signs and apply cool compresses to the burned area.
    • Removing clothing stuck to burned area and checking for airway swelling are important steps in burn care.

    Skin Layers

    • The epidermis contains keratinocyte cells.
    • The dermis is the skin layer that contains all major tissue types, including epithelial, connective, muscle, and nervous tissue.
    • The hypodermis is the layer composed mostly of adipose tissue.

    Skin Color

    • Low oxygen supply in the blood causes the skin to appear bluish.
    • A rich supply of oxygenated blood gives the skin a pink hue.

    Skin Cancer

    • Melanoma is the most aggressive skin cancer and often begins with a mole.
    • Basal cell carcinoma is the most common skin cancer.
    • Squamous cell carcinoma begins in the flat cells of the epidermis.

    Conditions Requiring Chemotherapy

    • Melanoma is a condition that may require chemotherapy.

    Diseases with Multiple Stages

    • Melanoma has five stages.

    Causes of Eczema

    • The causes of eczema are mostly unknown.

    Skin Conditions Causes

    • Herpes simplex is caused by a virus.
    • Rosacea is caused by the dilation of small facial blood vessels, but the exact cause of this dilation is unknown.

    Parasitic Infestations

    • Pediculosis, which comes in three forms, is caused by lice.

    Skin Infections

    • Cellulitis is an inflammation of connective tissues in skin caused by bacteria.

    Treatment of Skin Problems

    • Scabies requires treating the whole family.

    Skin Irritations

    • Dermatitis can be caused by excessive rubbing of the skin.

    Causes of Diseases

    • Herpes simplex is caused by a virus.

    Rosacea

    • Rosacea is caused by the dilation of small facial blood vessels, but the underlying cause of this dilation is unknown.

    Pediculosis

    • Pediculosis, which comes in three forms, is caused by lice.

    Skin Conditions

    • Eczema causes are mostly unknown.
    • Herpes simplex is caused by a virus.
    • Rosacea results from dilation of small facial blood vessels, with an unknown cause.
    • Pediculosis is caused by lice and comes in three forms.

    Skin Structure and Function

    • Melanin helps prevent UV radiation from damaging deep structures of the skin.
    • The epidermis contains keratinocyte cells.
    • The dermis contains all of the major tissue types, including epithelial tissue, connective tissues, muscle tissue, and nervous tissue.
    • Keratin makes the epidermis waterproof and resistant to bacteria and viruses.
    • Sweat glands are found in the dermis.
    • The skin plays a role in regulating body temperature by dilating or constricting blood vessels in the skin.

    Skin Cancer

    • The most aggressive skin cancer is melanoma.
    • The most common skin cancer is basal cell carcinoma.
    • Melanoma often begins with a mole.
    • Squamous cell carcinoma begins in the flat cells of the epidermis.

    Skin Injuries and Burns

    • Inflammation follows skin injury, carrying defensive cells to the area.
    • The extent of a burn injury is estimated by using the rule of nines.
    • Burns to the head can be serious, but may not always require immediate action.
    • Burns to the arm may require removal of stuck clothing and checking for airway swelling.

    Skin Appearance and Health

    • Skin with a rich supply of oxygenated blood appears pink.
    • Skin with a low supply of oxygen appears bluish.
    • Cellulitis is an inflammation of connective tissues in skin caused by bacteria.
    • Scabies requires treating the whole family.

    Skin Problems

    • Cellulitis is an inflammation of connective tissues in skin caused by bacteria.

    Skin Problem Causes

    • Scabies is a skin problem that requires treating the whole family.

    Skin Problem Relationships

    • Excessive rubbing of the skin can cause Dermatitis.

    Skin Disorders

    • Psoriasis is an inherited autoimmune disorder.
    • Psoriasis is characterized by itchy, silvery, scaly lesions.
    • Scabies is caused by mites that burrow beneath the skin.

    Eccrine Sweat Glands

    • Produce watery sweat
    • Most numerous on palms of hands and soles of feet, not armpits and groin
    • Activated primarily by heat, not nervousness or stress
    • Become active during fetal development, not during puberty
    • Help in thermoregulation by causing loss of body heat

    Apocrine Sweat Glands

    • Produce sweat with a high amount of protein
    • Concentrated in armpits and groin, not on the forehead, neck, and back
    • Become active during puberty, not during fetal development

    Sweat Glands

    • Apocrine sweat glands produce sweat with a high amount of protein
    • They are activated primarily by emotional stimuli, not heat
    • Apocrine sweat glands produce thicker sweat than eccrine glands
    • These glands are most numerous in the armpits and groin area
    • Apocrine sweat glands become active during puberty

    Burn Classification

    • A burn that causes only pain, swelling, and redness is a first-degree burn
    • A first-degree burn affects only the outermost layer of the skin (epidermis)
    • Second-degree burns involve both the epidermis and dermis
    • Burns that do not affect muscles or bones are classified as partial-thickness burns
    • Second-degree burns are also known as partial-thickness burns

    Burns

    • A full-thickness burn involves all layers of the skin and often the muscles and bones.

    Skin Disorders

    • A smooth, red sore with a slight waxy sheen on the skin may indicate Basal cell carcinoma.

    Patient's Condition

    • Joanne is in the office due to a rash on one side of her back and thigh.
    • The rash is painful and has started to blister in some areas.

    Diagnosis Questions

    • Helpful questions to aid in diagnosis include:
      • "How many people live in your home?" (A)
      • "Have you noticed any similar symptoms in other family members?" (B)
      • "Did you have chickenpox when you were a child?" (C)

    Hair and Skin Issues

    • Alopecia is often inherited and leads to hair loss, but other causes include hormonal changes, chemotherapy, stress, burns, and fungal skin infections.

    Sweat Glands

    • Apocrine glands produce a thicker type of sweat that contains more proteins and are mostly concentrated in areas of skin with coarse hair.

    Hair Muscles

    • Arrector pili muscles are attached to hair follicles and cause goose bumps.

    Skin Infections

    • Cellulitis is an inflammation of connective tissues in skin, primarily occurring on the face and legs, caused by staphylococcal and streptococcal bacteria.

    Skin Discoloration

    • Cyanosis is a condition where the skin appears bluish due to low oxygen supply in the blood.

    Skin Disorders

    • Dermatitis is a general term for inflammation of the skin or a rash that can have many causes, and is a sign of many types of skin disorders.

    Shingles

    • In shingles, a painful blistering rash occurs along the dermatome, which is the skin area along the pathway of the affected nerve root.

    Skin Layers

    • The dermis is the layer of skin deep to the epidermis and contains all the major types.
    • The epidermis is the most superficial layer of the skin and is made up of many layers of tightly packed cells.

    Eczema

    • Eczema is a type of chronic dermatitis that has acute phases, and its causes are mostly unknown, but it is thought to be a type of allergy or the result of an underlying inflammatory condition.

    Skin Conditions

    • Folliculitis is an inflammation of hair follicles caused by shaving, excess rubbing, or bacteria and fungi from prolonged wet swimwear or undertreated hot tubs.
    • Herpes Simplex types 1 and 2 are caused by a virus, with type 1 causing cold sores, being highly contagious, and spreading through saliva.
    • Herpes Simplex type 2, also known as genital herpes, is sexually transmitted.
    • The Varicella-Zoster virus, which causes chickenpox, can become dormant in the spine's dorsal nerve root and reactivate later in life to cause shingles, also known as Herpes Zoster.

    Skin Layers

    • The subcutaneous layer of skin is also known as the Hypodermis.

    Bacterial Infections

    • Impetigo is a skin condition characterized by oozing lesions that eventually crust over with a distinctive honey-colored crust, and is highly contagious for those who come in contact with the lesions or exudates.

    Epidermis Structure and Function

    • Keratin is the durable protein that makes the epidermis waterproof and resistant to bacteria and viruses.

    Cell Types in the Epidermis

    • The most common cell type in the epidermis is the keratinocyte.

    Nail Structure

    • The lunula is the white half-moon-shaped area at the base of a nail and contains very active keratinocytes.

    Skin Pigmentation

    • Melanin is the pigment that traps ultraviolet radiation from sunlight and prevents the radiation from harming structures in the underlying layers of the skin.
    • All people have about the same number of melanocytes, regardless of skin color; what varies from person to person is how active the cells are in producing melanin.

    Skin Conditions and Disorders

    • Pediculosis is a skin condition caused by parasitic lice, often associated with overcrowded conditions and poor hygiene.

    Autoimmune Disorders

    • Psoriasis is an inherited autoimmune disorder that causes recurring episodes of itching and redness, accompanied by distinctive silvery, scaly skin lesions.

    Facial Disorders

    • Rosacea is a skin disorder characterized by facial redness, predominantly over the cheeks and nose, resulting from dilation of small facial blood vessels.

    Contagious Skin Conditions

    • Scabies is a highly contagious skin condition caused by the itch mite, requiring treatment of an entire family if one member is infected.

    Skin Glands

    • Sebaceous glands produce an oily substance called sebum, which is secreted onto hairs to keep them soft and pliable, and prevent bacteria from growing on the skin.

    Ringworm on the Scalp

    • Ringworm on the scalp is known as Tinea capitis.

    Evaluating Melanoma with the ABCDE Rule

    • Asymmetry: A mole should look equal in size from side to side.
    • Border: A mole's border should be irregular, not blurring into nearby normal tissue.
    • Color: A mole's color should be even, not lightening or darkening.
    • Diameter: A mole should not grow larger than 6mm in diameter.

    Cancer Warning Signs

    • The American Cancer Society has put together seven cancer warning signs for adults using the acronym CAUTION.

    Skin Function

    • Skin excretes small amounts of waste products, such as water and salts, through perspiration.

    Skin Receptors

    • Sensory receptors in the skin detect touch, heat, cold, and pain.

    Skin Lesions

    • A skin lesion that consists of a large blister or cluster of blisters is called a Bulla.
    • Skin lesions that originate from disease or body changes are called Primary lesions.

    Types of Lesions

    • Lesions caused by a reaction to external traumas are known as secondary lesions.
    • Anomalies of the blood vessels, such as telangiectasias or ecchymoses, are vascular lesions.

    Scars and Bleeding Disorders

    • A scar inside a wound or tissue is known as a cicatrix.
    • Bleeding disorders may cause pinpoint skin hemorrhages known as petechiae.

    Abnormal Scar Tissue Growth

    • A keloid is an overgrowth of scar tissue.

    Skin Lesions and Inflammation

    • An elevated, infected skin lesion that contains pus is known as a Pustule.
    • Inflammation is characterized by redness, swelling, localized warmth, and pain.

    Causes of Redness

    • Redness around an inflamed area is caused by the dilation of nearby blood vessels.

    Response to Injury

    • When the structures and blood vessels of the dermis are injured, a blood Clot forms initially.

    Scars

    • The major component of scars is a whitish fiber called Collagen.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge of skin structure and skin conditions with these questions. Identify the roles of different skin components and recognize the signs of various skin conditions.

    More Like This

    Mastering A&P: Chapter 5 Flashcards
    12 questions

    Mastering A&P: Chapter 5 Flashcards

    ChivalrousSard7112 avatar
    ChivalrousSard7112
    Skin Anatomy Flashcards - Chapter 26
    23 questions

    Skin Anatomy Flashcards - Chapter 26

    LavishDiopside625 avatar
    LavishDiopside625
    Skin Structure and Functions Quiz
    10 questions

    Skin Structure and Functions Quiz

    CompatibleParabola avatar
    CompatibleParabola
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser