Integumentary System

Question 1

the superficial layer of the skin, consisting of stratified squamous epithelial tissue

Answer 1

Epidermis

Question 2

reduces water loss through the skin

Answer 2

Epidermis

Question 3

protects against the potential damage from abrasion on the skins surface

Answer 3

Epidermis

Question 4

what are the functions of epidermis

Answer 4

• protects against the potential damage from abrasion
• reduces water loss through the skin

Question 5

contains no blood vessels = avascular region

Answer 5

Epidermis

Question 6

what are the cells of epidermis

Answer 6

keratinocytes
melanocytes
langerhan cells
merkel cells

Question 7

produce a protein mixture (keratin)

Answer 7

keratinocytes

Question 8

produces the pigment melanin

Answer 8

melanocytes

Question 9

it is part of the immune system

Answer 9

Langerhan cells

Question 10

it is a specialized epidermal cells associated with the nerve end responsible for detecting light and superficial presuure

Answer 10

merkel cells

Question 11

what are the five strata of epidermis

Answer 11

stratum corneum
startum lucidum
stratum granulosum
stratum spinosum
stratum basale

Question 12

It is the outermost layer of the epidermis and it is keratinized

Answer 12

Stratum corneum

Question 13

present only in thick skin
appears transparent
disperses keratohyalin around keratin fibers

Answer 13

Stratum lucidum

Question 14

contains a waterproofing glycolipid and others contain subunits of keratin

Answer 14

Stratum granulosum

Question 15

also known as spiny layer

Answer 15

stratum spinosum

Question 16

it is the deepest layer of the epidermis where tissues are continuous to divide

Answer 16

stratum basale (stratum germinativum)

Question 17

has all five strata of epidermis

Answer 17

thick skin

Question 18

covers the rest of the body, more flexible than thick skin, and hair is found only in this..

Answer 18

thin skin

Question 19

is it generally absent in thin skin

Answer 19

Stratum lucidum

Question 20

Irregular shaped cells with many long processes that extend between the keratinocytes of the stratum basale and stratum spinosum

Answer 20

Melanocytes

Question 21

A recessive genetic trait that results from an inability to produce tyrosinase

Answer 21

Albinism

Question 22

What is carotene?

Answer 22

a yellow pigment found in plants (carrots and corn)

Question 23

A condition in which the skin turns to a reddish hue when the amount of blood flowing through the skin increases

Answer 23

Erythema

Question 24

A bluish skin color following a decrease in blood flow

Answer 24

Cyanosis

Question 25

For pain, itch, tickle, and temperature sensations

Answer 25

Free nerve ending

Question 26

For light touch

Answer 26

Hair follicle receptors

Question 27

For deep pressure

Answer 27

Pacinian corpuscle

Question 28

For detecting simultaneous stimulation at two points on the skin

Answer 28

Meissner corpuscle

Question 29

For sensing continuous touch or pressure

Answer 29

Ruffini end organs

Question 30

what are the tissue layers of dermis

Answer 30

Papillary Reticular

Question 31

what are the cells of the dermis

Answer 31

Fibroblast Adipocytes Macrophages

Question 32

collagen, elastic and reticular

Answer 32

Fibers

Question 33

a connective tissue that contains blood vessels that allow for nutrients and waste exchange to the cells

Answer 33

Dermis

Question 34

projections on the upper part of the dermis which extend toward dermis

Answer 34

Dermal papillae

Question 35

Loose connective tissue with thin fibers

Answer 35

Papillary layer

Question 36

Dense irregular connective tissue and it is the main layer of the dermis

Answer 36

Reticular layer

Question 37

Lines that are visible through the epidermis when the skin is overstretched and damages the dermis

Answer 37

Stretch marks

Question 38

A layer of loose connective tissue with collagen and elastic fiber

Answer 38

Hypodermis (Subcutaneous tissue)

Question 39

Types of hair and its classification

Answer 39

Lanugo Hair -delicate, unpigmented -developed and covered the fetus by the fifth or sixth month of fetal development Terminal hair - long, coarse, and pigmented -replace the lanugo of the scalp, eyelids and eyebrows near time of birth Vellus Hair - short, fine, unpigmented - replace the lanugo and the rest of the body