Skin
Skin Color
Hair
Glands and Nails
Miscellaneous
100
Which layer of the skin is dense irregular connective tissue, and which is epithelial tissue?
dermis; epidermis
100
What are the two primary pigments responsible for hair, skin, and eye color?
melanin and carotene
100
Name three places on the body that do not have hair.
palms, soles, lips, nipples, parts of the genitalia, distal parts of fingers and toes
100
What is the visible part of the nail? What is the part covered by skin?
nail body, nail root
100
Besides heat, what are two things that can cause burns?
cold, friction, chemicals, electricity, radiation
200
________ in the skin have more fibers and are more resistant to stretch. It is ideal to make incisions parallel to these.
cleavage lines
200
What does melanin protect the skin from?
UV light
200
From top to bottom, what are the three parts of the hair?
shaft, root, bulb
200
What are the two major glands of the skin?
sebaceous glands, sweat glands
200
UV light helps the skin produce a precursor of what molecule?
Vitamin D
300
The subcutaneous tissue is sometimes called the _____________.
hypodermis
300
True or false: all races have approximately the same number of melanocytes.
True
300
What are the two stages of hair production?
growth stage, resting stage
300
A nail is a thin plate that contains a very hard type of _______ (protein).
keratin
300
What structures in the dermis dilate and constrict to help maintain body temperature?
Blood vessels
400
Which two fibers strengthen the dermis and make it resistant to stretch?
collagen and elastic fibers
400
A decrease in blood flow can make the skin appear _______. A decrease in blood O2 content can make the skin appear ________.
pale; blue (cyanosis)
400
Every hair is attached to smooth muscle cells called the ________ muscle.
arrector pili muscle
400
What structure produces new nail cells, allowing nails to grow continuously?
nail matrix
400
A burn extends down from the surface of the skin to the red star. What classification of burn is this?
Partial thickness, specifically a first-degree burn
500
Which of the following is the most superficial layer of the epidermis and which is the deepest?
Superficial: stratum corneum
Deepest: stratum basale
500
Which type of skin cancer arises from melanocytes in a mole?
malignant melanoma
500
Arrange the following layers of hair from deep to superficial: cortex, cuticle, medulla.
medulla, cortex, cuticle
500
What letters correspond to the apocrine sweat gland, eccrine sweat gland, and sebaceous gland?
apocrine sweat gland; C, eccrine sweat gland: E, and sebaceous gland: D
500
What do jaundice and carotenemia have in common?
They cause yellowing of the skin