Integumentary System Flashcards
Which of the following does not describe the epidermis?
The most external layer of the skin
The deepest layer of the skin
An avascular layer of the skin
The layer of the skin that produces cells containing keratin
The deepest layer of the skin
Which of following glands in the skin is not correctly paired with its secretion?
Sebaceous glands / oil
Apocrine sweat glands/ odoriferous perspiration
Eccrine glands / perspiration necessary for evaporative cooling
Ceruminous glands/ sebum
Ceruminous glands/ sebum
Which of the following is not true about thermoregulation?
Contraction of arrector pili muscles facilitates vasodilation.
Sweating facilitates cutaneous vasodilation.
Cutaneous vasodilation cools the body by allowing heat to be released through skin.
Cutaneous vasoconstriction warms the body by restricting blood flow in the skin.
Contraction of arrector pili muscle facilitates vasodilation.
Extra:
Contraction of arrector pili muscle facilitates cutaneous vasoconstriction (constriction of the blood vessels), while relaxation facilitates vasodilation (dilation of the blood vessels).
Which of the following accessory structures is not correctly paired with its function?
Apocrine glands / sweat production
Arrector pili / odor production
Ceruminous glands / earwax production
Hair follicle / hair production
Arrector pili / odor production
Which of the following does not describe the dermis?
The layer of the skin where cells containing the pigment melanin are found
The layer of the skin that contains the network of capillaries necessary for thermoregulation
The thickest layer of the skin
A vascular layer of the skin
The layer of the skin where cells containing the pigment melanin are found
Which of the following substances is synthesized in the skin from a cholesterol-based precursor upon safe exposure to ultraviolet (UV) rays of sunlight?
Keratin
Melanin
Vitamin D
Sweat
Vitamin D
Which of the following proteins makes up the hair and nails?
Vinculin
Elastin
Keratin
Collagen
Keratin
Hypohidrotic ectodermal dysplasia (HED) is a rare disorder characterized by partial or complete absence of sweat glands. Which of the following would occur if sweat glands are absent or its function is inhibited?
Excessive production of protective oils
Loss of ability to regulate body temperature
Excessive production of secretion that has odor and with possible pheromone function
Reduction in synthesis of melanin
Loss of ability to regulate body temperature
Which of the following is a function of the epidermis?
contains many blood vessels that can constrict or dilate for thermoregulation
protects underlying tissues from abrasions, heat, microbes, and chemicals
functions as a major component of the adaptive immune system
storage of fat
protects underlying tissues from abrasions, heat, microbes, and chemicals
Which of the following is true of the function sebaceous glands?
Sebaceous glands produce substance that is responsible for the color of the skin
Sebaceous glands supply the hair shafts and skin with oily secretions
Sebaceous glands produce secretion that when released, has an odor with a possible pheromone function in humans
Sebaceous glands are found in the hypodermis and secrete substance that protects the ears from foreign bodies
Sebaceous glands supply the hair shafts and skin with oily secretions
Which of the following is the middle, vascular layer of the skin?
Epidermis
Dermis
Hypodermis
Subcutaneous layer
Dermis
In which layer of the skin are the subcutaneous fat stores found?
Hypodermis
Dermis
Epidermis
Sebaceous
Hypodermis
Which layers of the skin are affected by a third-degree burn?
Only the epidermis
The epidermis, dermis, and some muscle and bone
The epidermis and part of the dermis
The epidermis and all of the dermis
The epidermis and all of the dermis
Which of the following statements is not true about accessory structures in the skin?
Ceruminous glands produce waxy lubricant secretion that protects the ears.
Sebaceous glands secrete oily substance that prevents drying out of hair and skin.
Hair is produced from epithelial tissue that dips down into the dermis to form hair follicles.
Eccrine sweat glands are only concentrated in particular parts of the body, such as the armpits and genital region.
Eccrine sweat glands are only concentrated in particular parts of the body, such as the armpits and genital region.
Which of the following glands is correctly paired with its secretion?
Apocrine sweat glands/ secretion that, when released, has an odor with a possible pheromone function in humans
Sebaceous glands/ production of sweat necessary for evaporative cooling
Ceruminous glands/ oil that moisturizes hair and skin
Eccrine glands/ sticky barrier that prevents foreign bodies and insects from entering the ears
Apocrine sweat glands/ secretion that, when released, has an odor with a possible pheromone function in humans
