week 2 self-quiz questions from text

Question 1

the epidermal layer that is found in thick skin but not in thin skin is the ___?

Answer 1

stratum lucidum

Question 2

the most common sweat glands that release watery secretion are ____

Answer 2

eccrine

Question 3

modified sweat glands in the ear are ___

Answer 3

ceruminous

Question 4

sweat glands located in the axillae, groin, areolae, and beards of males and that release a slightly viscous, lipid-rich secretion are ____ sweat glands.

Answer 4

apocrine

Question 5

TRUE/FALSE

an individual with a dark skin color has more melanocytes than a fair-skinned person

Answer 5

FALSE

Question 6

in order to permanently prevent growth of an unwanted hair, you must destroy the hair matrix?

Answer 6

TRUE

Question 7

the layer of the epidermis that contains stem cells undergoing mitosis is the

Answer 7

stratum basale

Question 8

the substance that helps promote mitosis in epidermal skin cells is

Answer 8

epidermal growth factor

Question 9

which of the following is not a function of skin?

(a) calcium production (b) vitamin D synthesis (c) protection (d) excretion of wastes (e) temperature regulation

Answer 9

(a) calcium production

Question 10

to expose underlying tissues in the bottom of the foot, a foot surgeon must first cut through the skin. what is the order that the scapel would cut?

Answer 10

stratum corneum

(“ lucidum - only in THICK skin)

” granulosum

” spinosum

” basale

*the Bitch Spit Grain in my Corneum

Question 11

aging of the skin can result in

Answer 11

decrease in the activity of sebaceous glands

Question 12

Which of the following is not true?

(a) Albinism is an inherited inability of melanocytes to produce
melanin. (b) Striae occurs when the dermis is overstretched to the point of
tearing. (c) In order to prevent excessive scarring, surgeons should cut par-
allel to the lines of cleavage. (d) The papillary layer of the dermis is responsible for fingerprints.

(e) Much of the body’s fat is located in the dermis of the skin.

Answer 12

(e) Much of the body’s fat is located in the dermis of the skin.

Question 13

Which of the following statements are true?

(1) Nails are composed of tightly packed, hard, keratinized cells of the epidermis that form a clear, solid covering over the dorsal surface of the terminal end of digits.
(2) The free edge of the nail is white due to the absence of capillaries.
(3) Nails help us grasp and manipulate small objects.
(4) Nails protect the ends of digits from trauma.
(5) Nail color is due to a combination of melanin and carotene.

Answer 13

ALL TRUE

Question 14

what produce the protein that helps protect the skin and underlying tissues from light, heat, microbes, and many chemicals?

Answer 14

keratinocytes

Question 15

what produces a pigment that contributes to skin color and absorbs ultraviolet light

Answer 15

melanocytes

Question 16

cells that arise from red bone marrow, migrate to the epidermis, and participate in immune responses are?

Answer 16

Langerhans cells

Question 17

cells thought to function in the sensation of touch

Answer 17

Markel cells

Question 18

located in the dermis, they function in the sensations of warmth, coolness, pain, itching, and tickling

Answer 18

free nerve endings

Question 19

smooth muscles assoicated with the hair follicles; when contracted, they pull the hair shafts perpendicular to the skin’s surface

Answer 19

arrector pili

Question 20

an abnormal thickening of the epidermis

Answer 20

callus

Question 21

release a lipid-rich secretion that functions as a water-repellent sealant in the stratum granulosum

Answer 21

lamellar granules

Question 22

pressure-sensitive cells found mostly in the subcutaneous layer

Answer 22

pacinian (lamellated) corpuscles

Question 23

a fatty substance that covers and protects the skin of the fetus from the constant exposure to amniotic fluid

Answer 23

vernix caseosa

Question 24

associated with hair follicles, these secrete an oil substance that helps prevent hair from becoming brittle, prevents evaporation of water from the skin’s surface, and inhibits the growth of certain bacteria

Answer 24

sebaceous glands

Question 25

deep region of the dermis composed primarily of dense irregular connective tissue

Answer 25

reticular region

Question 26

composed of keratinized stratified squamous epithelial tissue

Answer 26

epidermis

Question 27

not considered part of the skin, it contains areolar and adipose tissues and blood vessels; attaches skin to underlying tissues and organs

Answer 27

subcutaneous layer (hypodermis)

Question 28

superficial region of the dermis; composed of areolar connective tissue

Answer 28

papillary region