Skin Health and Dermatology Overview
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Questions and Answers

What does healthy skin require to maintain its health, elasticity, vibrancy, and color?

Special care

What is the technical name for the study of skin, including its structure, functions, diseases, and treatment?

Dermatology

What is the outer protective layer of the skin called?

Epidermis

What is another name for the stratum germinativum?

<p>Basal or stratum basale layer</p> Signup and view all the answers

Where does mitosis (cell division) or replacement of the skin take place?

<p>Stratum germinativum</p> Signup and view all the answers

Which layer of skin does not contain any blood vessels?

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

The stratum germinativum and what other layer of the skin contain melanin?

<p>Stratum spinosum</p> Signup and view all the answers

On the human body, where is the thickest skin located?

<p>Palms and soles of the feet</p> Signup and view all the answers

Where are the blood vessels found that transport nourishment to the skin and nerves?

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

Where are sudoriferous glands, sebaceous glands, sensory nerve endings, arrector pili muscles, and a major portion of each hair follicle found?

<p>In the dermis</p> Signup and view all the answers

What is the layer of the epidermis that is shed and replaced constantly?

<p>Stratum corneum</p> Signup and view all the answers

What quality is notable about the stratum corneum?

<p>It is the toughest layer of the skin</p> Signup and view all the answers

The stratum corneum is composed of what type of cells?

<p>Keratin cells</p> Signup and view all the answers

Which layer is the top or uppermost layer of the epidermis?

<p>Stratum corneum</p> Signup and view all the answers

What part of the skin is often referred to as true skin?

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

Which layer of the skin contains collagen protein fibers to help give the skin its elasticity and pliability?

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

What causes the deterioration of collagen and elastin fibers during the aging process?

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

What is the major function of the sudoriferous gland?

<p>Help regulate body temperature</p> Signup and view all the answers

What does the sebaceous gland produce?

<p>Sebum (oil)</p> Signup and view all the answers

What is the function of sebum?

<p>Mix with sweat to form the acid mantle</p> Signup and view all the answers

On what area of the body would you not find any sebaceous glands?

<p>On the palms of the hands and soles of the feet</p> Signup and view all the answers

Sweat or perspiration is excreted by what gland?

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

What are the small openings onto the skin from the sudoriferous glands called?

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

Sudoriferous and sebaceous glands are referred to as what?

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

What controls the excretion of perspiration from the skin?

<p>Nervous system</p> Signup and view all the answers

Control and regulation of the body temperature by the sudoriferous glands helps maintain the body temperature at what level?

<p>98.6 degrees F, or 37 degrees Celsius</p> Signup and view all the answers

Where is the greatest concentration of sudoriferous glands found?

<p>Palms, soles, scalp, forehead, and underarms</p> Signup and view all the answers

What is the subcutaneous layer of the skin made up of mostly?

<p>Fatty tissue</p> Signup and view all the answers

The papillary canal secretes oil (sebum) onto the?

<p>Surface of the skin</p> Signup and view all the answers

Nerve bundles in the subcutaneous tissue branch into the stratum granulosum layer and respond to what?

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

Where is the subcutaneous layer located?

<p>Below the dermis</p> Signup and view all the answers

Which layer of the skin contains large blood vessels that transport nourishment to the skin?

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

What causes almost 90% of the skin's wrinkles?

<p>Excessive exposure to the sun</p> Signup and view all the answers

What does the term 'chronic' refer to in terms of conditions?

<p>Frequent and habitual</p> Signup and view all the answers

What is the term used to identify conditions that are brief and severe?

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

A disease influenced by weather is referred to as what?

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

What is the pH level of healthy skin?

<p>Slightly acidic</p> Signup and view all the answers

What is an allergic reaction to cosmetics used?

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

What is an example of a subjective symptom?

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

What is it called when anticipating the most probable course a disease may follow?

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

Papule is an example of what?

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

What is the technical term for freckles?

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

Herpes simplex is the technical term for what?

<p>Fever blisters</p> Signup and view all the answers

A cyst is defined by which of the following descriptions?

<p>Abnormal membranous sac</p> Signup and view all the answers

What is a secondary lesion appearing as round dry patches of skin covered with rough silvery scales?

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

What is defined as a solid mass in the skin?

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

What is a fissure?

<p>Skin lesion that loses its flexibility due to exposure to wind, cold, water, etc.</p> Signup and view all the answers

Study Notes

Skin Health and Care

  • Healthy skin requires special care to maintain elasticity, vibrancy, and color.

Dermatology

  • The technical name for the study of skin, including structure, functions, diseases, and treatment, is dermatology.

Skin Structure

  • The outer protective layer of skin is known as the epidermis.
  • Stratum germinativum is also referred to as the basal layer or stratum basale.
  • Mitosis, or cell division, occurs in the stratum germinativum.
  • The epidermis lacks blood vessels.

Skin Layers and Composition

  • Melanin is present in both the stratum germinativum and stratum spinosum.
  • The thickest skin on the human body is found on the palms and soles of the feet.
  • Blood vessels that nourish the skin and nerves are located in the subcutaneous layer.
  • The dermis contains sudoriferous glands, sebaceous glands, sensory nerve endings, and arrector pili muscles.

Epidermis Details

  • The stratum corneum is the constantly shed and replaced layer of the epidermis and is the toughest layer.
  • Composed of keratin cells, the stratum corneum is the uppermost layer of the epidermis.
  • The term "true skin" refers to the dermis.

Dermis Features

  • The dermis contains collagen protein fibers which provide skin elasticity and pliability.
  • Aging leads to the deterioration of collagen and elastin fibers, resulting in wrinkles.

Glands and Their Functions

  • Sudoriferous glands play a major role in body temperature regulation.
  • Sebaceous glands produce sebum (oil), which combines with sweat to form the acid mantle.
  • Sebaceous glands are absent on the palms and soles of the feet.
  • Sweat is secreted by sudoriferous glands through small openings known as pores.
  • Sudoriferous and sebaceous glands are classified as duct glands.

Temperature Regulation

  • The nervous system controls sweat secretion and, in turn, helps regulate body temperature around 98.6°F (37°C).
  • The highest concentration of sudoriferous glands is located on the palms, soles, scalp, forehead, and underarms.

Subcutaneous Layer

  • The subcutaneous layer is primarily composed of fatty tissue and lies below the dermis.
  • It contains nerve bundles that respond to pain.

Skin Aging and Damage

  • About 90% of skin wrinkles are the result of excessive sun exposure.

Skin Conditions

  • Chronic conditions are frequent and habitual, whereas acute conditions are brief and severe.
  • Seasonal diseases are influenced by weather.
  • Healthy skin has a slightly acidic pH level between 4.5 to 5.5.

Allergies and Symptoms

  • Dermatitis venenata is an allergic reaction to cosmetics.
  • Itching is classified as a subjective symptom.
  • Prognosis refers to anticipating the likely course of a disease.

Skin Lesions

  • Papules represent primary skin lesions.
  • Technical term for freckles is macules.
  • Herpes simplex is recognized as fever blisters.
  • Cysts are abnormal membranous sacs.
  • Psoriasis is a secondary lesion characterized by round dry patches of skin covered with rough silvery scales.
  • A tumor is defined as a solid mass in the skin.
  • Fissures are skin lesions that become inflexible due to environmental exposure.

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Description

Explore the essential aspects of skin health and care with this quiz. Delve into the structure of the skin, including its layers and composition, and understand the significance of dermatology in treating skin conditions. Test your knowledge on key terms and concepts related to skin health.

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