Test Questions Flashcards
What is the medical branch of science that deals with the study of skin?
Dermatology
The specialist who provides cleansing treatments for the skin is a(n):
Esthetician
If the skin of an average adult were stretched out, it would cover more than how many square inches?
3,000
What is NOT a characteristic of healthy skin?
- rigid
- soft
- slightly moist
- fine-grained texture
Rigid
The surface of healthy skin should:
be slightly acidic
Continued, repeated pressure on any part of the skin can cause it to thicken and develop into a:
Callus
The outermost layer of the skin is the:
Epidermis
The horny layer, or outer covering of the epidermis, is the:
stratum corneum
What is the principal component of hair and nails?
Keratin
The clear, transparent skin layer just under the surface through which light passes is the:
stratum lucidum
Which layer of the epidermis is also known as the basal cell layer?
stratum germinativum
Where are the melanocytes located?
stratum germinativum
The pigment produced to protect the skin from the effects of ultraviolet sun rays is called:
Melanin
The layer of the skin commonly called the true skin is the:
Dermis
The muscles that can cause goose bumps are called the _____ muscles.
arrector pili
What are the two layers of the dermis?
papillary and reticular
The small, cone-shaped elevations at the bottom of hair follicles are called the:
dermal papillae
Nerve endings that are sensitive to touch and pressure are found in which layer of the skin?
Papillary layer
The epidermal-dermal junction is located at the top of the _____ layer.
Papillary
The deepest layer of the dermis that supplies oxygen and nutrients to the skin is the:
reticular layer
Which of the following is NOT found in the reticular layer?
- melanocytes
- lymph vessels
- oil glands
- nerve endings
melanocytes
Subcutaneous tissue does all of the following EXCEPT:
- acts as a protective cushion for the skin
- contains fats for use as energy
- gives smoothness and contour to the body
- produces melanin
produces melanin
Nutrients and oxygen are supplied to the skin by:
Blood
The clear fluid that bathes skin cells, removes toxins and cellular waste, and has immune functions is called:
Lymph
Impulses are carried from the brain to the muscles by _____ nerve fibers.
Motor
Which nerve fibers react to heat, cold, touch, pressure, and pain?
Sensory
The nerve fibers that regulate the excretion of perspiration are the:
Secretory
Skin color depends on tiny grains of pigment, or coloring matter, called:
Melanin
The red to yellow melanin produced by the body is:
pheomelanin
People with dark-colored skin mostly produce:
eumelanin
The fibrous protein that gives skin form and strength is:
Collagen
The protein base that helps skin regain its shape after being stretched or expanded is called:
Elastin
A majority of scientists now believe that most signs of skin aging are caused by:
Sun exposure
The sudoriferous glands:
Detoxify the body
On which body part are sudoriferous glands more numerous?
Forehead
Normally, how many pints of salt-containing liquids are eliminated daily through sweat pores in the skin?
1 to 2
What is the oily secretion that lubricates the skin and preserves the softness of the hair?
Sebum
When sebum hardens and completely clogs an oil duct so that there are no surface follicle openings, it creates a(n):
Open comedo
Which skin disorder is characterized by chronic inflammation of the sebaceous glands from retained secretions?
Acne
What is NOT one of the principal functions of the skin?
-digestion
- heat regulation
- sensation
- excretion
digestion
Which vitamin is vital in fighting the aging process and promoting the production of collagen?
Vitamin C
The body needs _____ for many body functions, including hormones and sebum production.
Fats
The National Institute of Health (NIH) recommends a diet that is low in:
Saturated fats
Which vitamin helps protect the skin from the harmful effects of the sun’s UV light?
Vitamin E
A(n) _____ is a raised, inflamed papule with a white or yellow center containing pus.
Pustule
