The Integumentary System
Which type of burn appears inflamed and feels tender but has no blisters?
first-degree
A burn that destroys only the superficial cells of the epidermis, such as a mild sunburn, is classified as
first-degree.
Which of the following best explains why hair color dulls or turns silver/grey as a person ages ?
Low functioning follicles and decreased melanocyte activity
Which type of burn is most painful ?
Second-degree
The most severe type of skin cancer is most likely to develop from
melanocytes.
A small amount of ultraviolet radiation is beneficial because it ________.
stimulates vitamin D3 synthesis in the epidermis
A small amount of ultraviolet radiation is beneficial because it ___________.
stimulates vitamin D3 synthesis in the epidermis
Another term for sweat glands is
sudoriferous
The two major components of the integument are
the cutaneous membrane and the accessory structures
Aging results in gray or white hair because
the is less pigment production
As cells are pushed from the deeper portion of the epidermis toward the surface.
they die.
The type of burn that injures the hypodermis, deeper tissues, and organs is a(n)
third-degree burn.
Melanin serves to protect cells in the deeper layers of the epidermis from ________. No answer provided
ultraviolet radiation
When the arrector pili muscles contract
"goose bumps" are formed
When the arrector pili muscles contract,
"goose bumps" are formed.
Correctly order of the layers of the cutaneous membrane from top to bottom ?
1. epidermis 2. dermis 3. hypodermis
What is the correct order for repair of the intgument ?
1. scab formation 2. tissue granlation 3. scab removal 4. scar formation
__________ cells of epithelium and connective tissue undergo cell division to replace lost or damaged tissue.
Stem
The skin is also called the ________ membrane.
cutaneous
Shafts of hair are comprised of
dead keratinized dermal cells.
Blood vessels are located in the
dermis
The lipid in oil glands is released through which type of secretion?
holocrine
Which type cancer commonly begins as a small mole ?
melanoma
Short term paling of the skin occurs with _______________.
vasoconstriction
Functions of the skin include
regulating body temperature.
A "rug burn," which scrapes the skin, is an example of a(n)
abrasion.
The condition that results from clogged sebaceous glands is
acne
Which of the following is found in the subcutaneous layer ?
adipose tissue
Which of the following conditions is the most common form of skin cancer?
basal cell carcinoma
Choose the 3 comonents that form granulation tissue
fibroblasts, fibrin blood clot, capillaries
The hair _________________ grows, making hair longers.
matrix
What is the function of mammary glands ?
secrete milk for feeding of young
Choose the 3 accessory structures of the Integumentary System
nails, hair, select exocrine glands
When the body is overheated, the skin responds by
perspiring, cooling the body through evaporation
Match the term with its function, make-up or location. (full answer wouldn't fit, so I have the term, and some key words)
visible nail body - keratinized cells nail bed -epithilium nail root - cuticle nail - fingers and toes
Epidermal cells synthesize this vitamin when exposed to sunlight.
vitamin D3
What degree of burn would affect the connective tissues of the skin, which contains capillaries and nerve fibers ?
3rd degree
Which of the following is a plausible reason for increased infections due to a break in the intgument system, as the skin ages ?
Decrease amount of macrophage residing in the skin
Skin injuries and infections are more common in old age becuase
Epidermal thinning.
Which of the following glands are sensitive to hormonal changes, causing acne in many people going through puberty.
Sebaceous
Which is the most logical reason for an elderly person's higher potential to be prone to skin infections, compared to a younger person?
Stem cell activity in the epidermis declines in the elderly.
The glands that begin discharging a sticky, cloudy, and potentially odorous secretion at puberty are called ________ glands.
apocrine
Sweat glands that communicate with hair follicles in the armpits (axillary region) and produce an odorous secretion are
apocrine glands
What muscles allow this to occur to the hair ? (This question refers to goosebumps, and shows a picture of it.)
errector pili muscles
Perspiration that is produced by apocrine sweat glands
is limited to the hair follicles of the armpits (axillia), nipples, and public region.
The protein that contributes to many of the skin's protective qualities is called __________.
keratin
Modified and specialized sweat glands that produce milk are called ________ glands.
mammary
Glands that are located in the passageway of the external ear are called ________ glands.
ceruminous
Thick skin can be found on the _____.
palms
Functions of the skin include
regulating body temperature
Merocrine sweat glands
respond primarily to elevated body temperature.
The two types of exocrine glands in the skin are
sebaceous and sweat glands
Melanin serves to protect cells in the deeper layers of the epidermis from __________.
ultraviolet radiation
Epidermal cells are supplied with nutrients from blood vessels in the
hypodermis
Epidermal cells synthesize this vitamin when exposed to sunlight
D3
Exposure of the skin to UV radiaton ____________________.
can cause DNA alteration in skin cells
Exposure of the skin to ultraviolet light
can slowly increase melanocyte activity.
The skin may turn orange as a result of ________ buildup.
carotene
The skin may turn orange as a result of ___________ buildup.
carotene
A ceruminous gland that is over productive would produce an excessive amount of
earwax
In albinism, ________ is lacking.
melanin
In albinism, __________ is lacking.
melanin
The observed difference in skin color reflect the levels of ________________ production.
melanin
The observed differences in skin color reflect the levels of ________ production.
melanin
How is the severity of a burn measured ?
depth into the tissues and the total area affected
When a person becomes "pale," what is the physiological basis ?
dilating blood vessels
Hair is formed by the repeated divisions of epithelial stem cells in which structure?
hair matrix
This type of skin decor is created by ________ scars. (this question refers to a man with many scars across his back)
keloid
This is a matching question of the integumentary system diagram. But i'll put the letters that match the term for memorization.
A - epidermis B- dermis C- Hypodermis D- Sweat Pore E- Merocrine Sweat Gland Arrector Pili Muscle
Which is NOT a component of sweat ?
Ammonia
Vitamin D3 is essestinal for _____________________.
Calcium and Phosphorus absorption in the small intestine.
________ is a pigment found in vegetables that can make skin appear orange or yellow.
Carotene