6.2 – Hair and nails

Question 1

the hair, nails, and cutaneous glands are known as ___ organs of the skin

Answer 1

accessory (appendages)

Question 2

an individual hair is also known as which of the following?

Answer 2

pilus

Question 3

the deep end of the follicle forms a bulge that serves as a source of ___ cells for follicle growth

Answer 3

stem

Question 4

which of the following are accessory organs (appendages) of skin?

Answer 4

hair, nails, and cutaneous glands

Question 5

hair grows in diagonal tubes called hair ___

Answer 5

follicles

Question 6

name the muscle that extends from dermal collagen fibers to the connective tissue root sheath of a hair follicle

Answer 6

arrector pili

Question 7

what are the 2 principal layers of the hair follicle?

Answer 7

epithelial root sheath and connective tissue root sheath

Question 8

fingernails and toenails are derivatives of which epidermal layer?

Answer 8

stratum corneum

Question 9

the deep end of the follicle widens to form a bulge. What is its function?

Answer 9

source of stem cells for follicle growth

Question 10

the hair, nails, and cutaneous glands are known as ___ organs of the skin

Answer 10

accessory

Question 11

which type of sweat gland has a duct that opens by way of a pore on the skin surface?

Answer 11

eccrine/merocrine sweat gland

Question 12

an individual hair is also known as which of the following?

Answer 12

pilus

Question 13

which describes merocrine sweat glands?

Answer 13

simple tubular gland w/ a twisted coil in dermis or hypodermis

Question 14

what causes “goose bumps”?

Answer 14

contraction of the piloerector muscles

Question 15

fingernails and toenails are hard derivatives of the stratum ___ of the epidermis

Answer 15

corneum

Question 16

true statements about apocrine sweat glands

Answer 16

they produce sweat that contains fatty acids

they occur in the groin, anal region, axilla, areola, and beard area

Question 17

glands that secret a substance that combines w/ sebum to keep the eardrum protected and prevent foreign particles from entering the canal are called ___ glands

Answer 17

ceruminous

Question 18

sweat glands that have a relatively narrow lumen and a duct that opens by way of a pore on the skin surface are called ___ sweat glands

Answer 18

eccrine/merocrine

Question 19

mammary glands are modified versions of which type of gland?

Answer 19

apocrine

Question 20

the type of sweat gland that is the most abundant gland in the body, numbering 3 to 4 million in the adult skin, is the ___ sweat gland

Answer 20

eccrine/merocrine

Question 21

“goosebumps” are caused by contractions of which muscles?

Answer 21

piloerector