week 2 self-quiz questions from text Flashcards Preview

Spring 2013 / Anatomy 2 > week 2 self-quiz questions from text > Flashcards

Flashcards in week 2 self-quiz questions from text Deck (28):
1

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

stratum lucidum

2

the most common sweat glands that release watery secretion are ____

eccrine

3

modified sweat glands in the ear are ___

ceruminous

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.

apocrine

5

TRUE/FALSE

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

FALSE

6

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

TRUE

7

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

stratum basale

8

the substance that helps promote mitosis in epidermal skin cells is 

epidermal growth factor

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

(a) calcium production

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?

stratum corneum

(" lucidum - only in THICK skin)

" granulosum

" spinosum

" basale

*the Bitch Spit Grain in my Corneum

11

aging of the skin can result in

decrease in the activity of sebaceous glands

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.

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

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.

ALL TRUE

14

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

keratinocytes

15

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

melanocytes

16

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

Langerhans cells

17

cells thought to function in the sensation of touch

Markel cells

18

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

free  nerve endings

19

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

arrector pili

20

an abnormal thickening of the epidermis

callus

21

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

lamellar granules

22

pressure-sensitive cells found mostly in the subcutaneous layer

pacinian (lamellated) corpuscles

23

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

vernix caseosa

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

sebaceous glands

25

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

reticular region

26

composed of keratinized stratified squamous epithelial tissue

epidermis

27

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

subcutaneous layer (hypodermis)

28

superficial region of the dermis; composed of areolar connective tissue

papillary region