Skin Functions and Sweat Glands
78 Questions
0 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

What is the primary mechanism by which the body reduces its temperature through sweating?

  • Convection by air moving over skin surface
  • Conduction by clothes on skin
  • Radiation from body surface
  • Evaporation of sweat (correct)

    • What is the role of the skin in maintaining bone health?

  • Production of vitamin D
  • Conversion of precursor molecules to vitamin D (correct)
  • Absorption of calcium
  • Excretion of phosphate

    • What is the primary function of the apocrine glands in the axillary and genital areas?

  • Secretion of fats and proteins (correct)
  • Protection from bacteria
  • Production of musky odor
  • Regulation of body temperature

    • What is the primary role of the skin in maintaining metabolic activity?

    <p>Heat retention through constricted capillaries</p> Signup and view all the answers

    What is the primary mechanism by which the skin protects against bacterial exposure?

    <p>Providing a physical barrier to prevent entry</p> Signup and view all the answers

    What is the primary function of the skin in relation to wound healing?

    <p>Facilitating the stages of primary wound healing</p> Signup and view all the answers

    What is the primary function of dermal blood vessels in the skin?

    <p>To provide nutrition to the skin</p> Signup and view all the answers

    What is the process called when new cells produced in the stratum basale move up through the epidermis and change shape and chemical makeup?

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

    What type of tissue is found in the subcutaneous layer that provides insulation?

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

    What is the function of dermal papillae in the skin?

    <p>To hold the epidermis to the underlying tissue</p> Signup and view all the answers

    What is the lowest layer of the epidermis called?

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

    What is the time frame in which new cells produced in the stratum basale reach the surface of the skin and slough off?

    <p>40-56 days</p> Signup and view all the answers

    The epidermis contains areolar connective tissue.

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

    The dermal papillae project upwards from the subcutaneous layer.

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

    The subcutaneous layer contains dense connective tissue.

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

    The stratum basale is the highest layer of the epidermis.

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

    Hair follicles are found in the subcutaneous layer.

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

    Sweat contains fats and proteins.

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

    The epidermis contains motor and sensory nerve cell processes.

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

    The apocrine glands are smaller than eccrine glands.

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

    The skin helps to retain heat by dilating capillaries.

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

    Vitamin D is produced in the skin through exposure to UV light.

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

    The skin is responsible for absorbing some drugs through transdermal patches.

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

    Sweating is an ineffective way to lower body temperature.

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

    The epidermis is composed of five distinct layers, including the stratum corneum and stratum basale.

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

    The primary function of the sebaceous glands is to produce sweat.

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

    Nail growth occurs at a rate of approximately 0.1 to 0.2 millimeters per day.

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

    The process of keratinisation is responsible for the formation of melanin.

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

    Hair growth occurs at a rate of approximately 1 centimeter per month.

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

    The skin's natural pigmentation is influenced by the amount of melanin produced in the epidermis.

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

    What is the function of Langerhans cells in the epidermis?

    <p>phagocytosis and acting as antigen presenting cells</p> Signup and view all the answers

    How does the rate of epidermis production match the rate of cell loss in the skin?

    <p>the rate of epidermis production matches the rate of cell loss, and production is increased in areas of greater rubbing and loss</p> Signup and view all the answers

    What determines the extent of red coloring in the skin?

    <p>oxygen concentration in dermal capillaries</p> Signup and view all the answers

    What is the role of the nail bed in nail growth?

    <p>responsible for nail growth, as new cells are produced and keratinised</p> Signup and view all the answers

    What is the primary function of the apocrine glands in the axillary and genital areas, and how does bacterial attack affect these glands?

    <p>The primary function of apocrine glands is to produce sweat that contains fats and proteins, which gives a musky odour when bacteria attack these glands.</p> Signup and view all the answers

    How does the skin produce Vitamin D, and what is its role in maintaining bone health?

    <p>The skin produces Vitamin D through exposure to UV light, which converts precursor molecules into Vitamin D, and it plays a role in maintaining bone health by producing and maintaining bone along with calcium and phosphate.</p> Signup and view all the answers

    What determines the amount of melanin produced in the skin?

    <p>genetics and exposure to light</p> Signup and view all the answers

    What is the role of the epidermis in protecting the body from external factors, and how does it achieve this?

    <p>The epidermis protects the body from external factors such as UV light, chemicals, and bacteria by forming a barrier, and it achieves this through its multiple layers, including the stratum corneum and stratum basale.</p> Signup and view all the answers

    What is the additional layer of skin found in thickened and hairless regions of the palm and soles?

    <p>stratum lucidum</p> Signup and view all the answers

    How does the skin regulate body temperature, and what are the different mechanisms involved in this process?

    <p>The skin regulates body temperature through mechanisms such as sweating, evaporation, radiation, conduction, and convection, which help to reduce body heat and maintain a stable temperature.</p> Signup and view all the answers

    What is the role of melanin in determining skin colour, and how does it interact with UV light?

    <p>Melanin is responsible for determining skin colour, and it interacts with UV light by absorbing it and protecting the skin from its harmful effects.</p> Signup and view all the answers

    What is the relationship between the skin and metabolic activity, and how does the skin help to maintain this activity?

    <p>The skin is involved in metabolic activity through its role in producing heat, and it helps to maintain this activity by producing heat through metabolic processes such as muscle activity and liver function.</p> Signup and view all the answers

    What is the function of dermal papillae in the epidermis, and how do they relate to the dermis?

    <p>Dermal papillae are small projections of the dermis that extend into the epidermis, increasing the surface area of contact between the two layers and holding the epidermis firmly to the underlying tissue.</p> Signup and view all the answers

    Describe the process of keratinisation in the epidermis, including the time frame in which new cells reach the surface of the skin.

    <p>Keratinisation is the process by which new cells produced in the stratum basale move up through the epidermis, changing shape and chemical makeup as they go, and eventually reach the surface of the skin, where they slough off, a process that takes 40-56 days.</p> Signup and view all the answers

    What is the function of melanin in the skin, and how does it relate to skin colour?

    <p>Melanin is responsible for skin pigmentation, with increased melanin production resulting in darker skin colour.</p> Signup and view all the answers

    What is the structure and function of the subcutaneous layer, including the types of tissue found within it?

    <p>The subcutaneous layer binds the skin to underlying organs and muscles, and consists of areolar and adipose tissue, including collagen and elastic fibers, which provide insulation.</p> Signup and view all the answers

    What is the function of hair follicles in the skin, and how do they relate to hair growth?

    <p>Hair follicles are accessory structures in the skin that produce hair, with hair growth occurring at a rate of approximately 1 centimeter per month.</p> Signup and view all the answers

    Describe the structure of the epidermis, including the layers and their functions.

    <p>The epidermis consists of stratified squamous epithelial cells, with the lowest layer being the stratum basale, where new cells are produced through mitosis, and moving up through the layers, cells change shape and chemical makeup, eventually reaching the surface and sloughing off.</p> Signup and view all the answers

    The epidermis consists of stratified ______ epithelial cells.

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

    The ______ layer of the epidermis is the lowest layer, close to dermal blood vessels.

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

    The amount of ______ produced in the epidermis influences skin colour.

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

    Hair growth occurs at a rate of approximately ______ centimeter per month.

    <p>1</p> Signup and view all the answers

    Accessory structures of the skin include ______ follicles, sebaceous glands, and sweat glands.

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

    The skin has 4 layers for most of the surface, with a fifth layer called ______ in thickened and hairless regions of the palm and soles.

    <p>stratum lucidum</p> Signup and view all the answers

    ______ is the dark pigment responsible for skin colour, produced by melanocytes in the deep germ layer.

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

    The nail plate lies on the ______ (skin), and the nail bed is responsible for nail growth.

    <p>nail bed</p> Signup and view all the answers

    Keratin is laid down inside cells, which then become harder and die, producing the outer layer of dead, hard cells in the ______.

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

    ______ is the orange-yellow pigment from some vegetables that gathers in the stratum corneum and adipose tissue.

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

    The skin helps to retain heat by constricting ______ so less heat is lost

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

    Metabolic activity produces ______ – muscles, liver, digestive tract

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

    When this type of gland is attacked by bacteria, it produces a ______ odour

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

    The skin is responsible for absorbing some ______ through transdermal patches

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

    Precursor molecules in the skin are converted to ______ D by sunlight

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

    Match the following epidermis layers with their descriptions:

    <p>Stratum corneum = Outer layer of dead, hard cells Stratum spinosum = Contains Langerhans cells Stratum lucidum = Found in thickened and hairless regions of the palm and soles Stratum basale = Bottom layer where new cells are produced</p> Signup and view all the answers

    Match the following skin accessory structures with their functions:

    <p>Nails = Protect from abrasion and provide waterproofing Sebaceous glands = Produce sebum for hair and skin Sweat glands = Regulate body temperature Hair follicles = Protect from external factors</p> Signup and view all the answers

    Match the following with their roles in nail growth:

    <p>Nail plate = Protects the nail bed Nail bed = Responsible for nail growth Keratin = Forms the nail plate Specialised epidermis = Forms the nail plate under the nail bed</p> Signup and view all the answers

    Match the following skin structures with their functions:

    <p>Eccrine glands = Sweat production for thermoregulation Apocrine glands = dầu production for skin moisturizing Sebaceous glands = Oil production for skin moisturizing Dermal papillae = Sensation and capillary support</p> Signup and view all the answers

    Match the following skin layers with their characteristics:

    <p>Dermis = Layer with blood vessels and nerve endings Stratum corneum = Thickest layer with dead keratinized cells Stratum basale = Thinnest layer with stem cells Stratum granulosum = Layer with granular cells</p> Signup and view all the answers

    Match the following skin functions with their descriptions:

    <p>Wound healing = Regenerating lost skin tissue Protection = Preventing external factors from entering the body Waterproofing = Preventing water loss from the body Regulation of body temperature = Maintaining a stable body temperature</p> Signup and view all the answers

    Match the following with their roles in the dermis:

    <p>Dermal papillae = Project upwards from the dermis Dermal blood vessels = Supply oxygen and nutrients to the skin Langerhans cells = Act as antigen presenting cells Areolar connective tissue = Provides insulation and support</p> Signup and view all the answers

    Match the following skin functions with their descriptions:

    <p>Keratinisation = Process of producing keratin in the epidermis Wound healing = Process of repairing skin damage Thermoregulation = Process of maintaining body temperature Metabolic activity = Process of producing heat in the body</p> Signup and view all the answers

    Match the following skin accessory structures with their functions:

    <p>Hair follicles = Growth and maintenance of hair Nail bed = Growth and maintenance of nails Sebaceous glands = Oil production for skin moisturizing Sweat glands = Sweat production for thermoregulation</p> Signup and view all the answers

    Match the following skin processes with their descriptions:

    <p>Epidermis production = Process of producing new skin cells Dermis regeneration = Process of repairing skin damage Keratinisation = Process of producing keratin in the epidermis Wound healing = Process of repairing skin damage</p> Signup and view all the answers

    Match the following skin layers with their characteristics:

    <p>Epidermis = Stratified squamous epithelium with no blood vessels Dermis = Subcutaneous layer containing areolar connective tissue and dense connective tissue Subcutaneous layer = Binds the skin to the organs/muscles beneath with areolar and adipose tissue Stratum basale = Lowest layer of the epidermis, closest to dermal blood vessels</p> Signup and view all the answers

    Match the following skin structures with their functions:

    <p>Sebaceous glands = Producing sweat Hair follicles = Growing hair Eccrine glands = Regulating body temperature through sweating Nerve cell processes = Conducting motor and sensory impulses</p> Signup and view all the answers

    Match the following skin processes with their descriptions:

    <p>Keratinisation = The process of skin cell growth, differentiation, and death Sweating = Regulating body temperature through evaporation Wound healing = The process of skin repair and regeneration Melanin production = Producing pigment responsible for skin color</p> Signup and view all the answers

    Match the following skin layers with their components:

    <p>Epidermis = Stratified squamous epithelial cells, keratinised cells, and melanocytes Dermis = Areolar connective tissue, dense connective tissue, and collagen fibers Subcutaneous layer = Adipose tissue, areolar connective tissue, and blood vessels Stratum corneum = Dead, keratinized cells that slough off the skin's surface</p> Signup and view all the answers

    Match the following skin functions with their descriptions:

    <p>Thermoregulation = Regulating body temperature through sweating and vasodilation Protection = Protecting the body from external factors such as bacteria and UV light Wound healing = The process of skin repair and regeneration Metabolic activity = Aiding in the synthesis and metabolism of nutrients</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser