A&P ch 5
The skin may turn orange as a result of ________ buildup. A) biliverdin B) keratin C) carotene D) melanin E) bilirubin
C) carotene
The dermis is composed largely of A) adipose. B) fluid connective. C) dense irregular connective. D) muscle. E) neural.
C) dense irregular connective.
The subcutaneous layer consists of A) epithelial and adipose tissues. B) areolar and adipose tissues. C) dense connective and loose connective tissues. D) epithelium and loose connective tissues. E) skeletal muscles and adipose tissue.
B) areolar and adipose tissues.
Which of the following is the function of the combination of epidermal ridges and dermal papillae? A) increase storage of nutrients in the digestive tract B) increase surface area for diffusion between the dermis and epidermis C) increase sensory reception D) increase secretion of milk in specialized integumentary glands E) increase large reserves of lipids in adipose tissue
B) increase surface area for diffusion between the dermis and epidermis
What is the composition of the papillary layer of the dermis? A) dense, regular connective tissue B) stratified squamous epithelium C) reticular connective tissue D) areolar connective tissue E) dense, irregular connective tissue
D) areolar connective tissue
When the body is overheated, the skin responds by A) decreasing melanin production. B) losing oxygen to surrounding tissues. C) constricting blood vessels. D) dilating blood vessels. E) increasing keratin production.
D) dilating blood vessels.
Drugs suspended in ________ or ________ can be carried across the plasma membranes of the epidermal cells. A) water; blood B) water; lipids C) oils; alcohol D) oils; lipid-soluble solvents E) sebum; water
D) oils; lipid-soluble solvents
A small amount of ultraviolet radiation is beneficial because it A) increases blood flow in the dermis. B) stimulates the synthesis of photoreceptor pigments in the eye. C) constricts blood vessels in the dermis. D) stimulates vitamin D3 synthesis in the epidermis. E) adjusts overall gland secretion rates in the body.
D) stimulates vitamin D3 synthesis in the epidermis.
Through which cellular interactions are the cells of the stratum basale firmly attached to the plasma membrane? A) gap junctions B) CAMs C) tight junctions D) connexons E) hemidesmosomes
E) hemidesmosomes