Lab 11- Integumentary System

Question 1

what are some functions of the integumentary system

Answer 1

protection regulate body temp regulate water loss house sensory receptors

Question 2

what do u know ab the epidermis

Answer 2

it is keratinized stratified squamous epithelium
it is avascular meaning there is a lack of blood vessels

Question 3

what do u know ab the hypodermis

Answer 3

it is subcutaneous (under skin) not part of the skin and mostly adipose or fat tissue

Question 4

main layers of skin

Answer 4

epidermis
dermis
hypodermis / subcutaneous

Question 5

what are the 5 layers of skin

Answer 5

Stratum corneum
Stratum lucidum
Stratum Granulosum
Stratum spinosum
Stratum basale

Question 6

20-30 layers of dead cellls with keratin and waterproof

Answer 6

stratum corneum

Question 7

clear flat dead cells only in thick skin like feet or palms

Answer 7

stratum lucidum

Question 8

3-5 rows of flat cells (granules of keratin)

Answer 8

stratum granulosum

Question 9

8-10 rows of cells appear shiny

Answer 9

stratum spinosum

Question 10

single layer of cuboidal to columnar cells, mitotic, and has melanocytes which provide uv protection

Answer 10

stratum basale

Question 11

the dermis has two layer:

Answer 11

papillary and reticular

Question 12

what is an important function of the papillary

Answer 12

wavy and binds epidermis to dermis
creates fingerprints
contains nerve endings

Question 13

what type of tissue is the papillary made of

Answer 13

areolar connective

Question 14

what kind of tissue is the reticular made of

Answer 14

dense irregular connective

Question 15

fun facts ab reticular go!

Answer 15

thick
contains accessory structures
vascular has blood yayyy

Question 16

what can be classified as dead keratinized epithelial cells

Answer 16

hair and nails ew

Question 17

the visible part of hair

Answer 17

shaft

Question 18

hair that is below the portion of skin

Answer 18

root

Question 19

expanded portion at the base of the root

Answer 19

bulb

Question 20

involuntary muscle beside each hair follicle makes goosebumps

Answer 20

arrector pili muscle

Question 21

secrete sebum into hair follicles

Answer 21

sebaceous glands

Question 22

two types of sweat glands

Answer 22

merocrine(eccrine) and apocrine

Question 23

found all over body
mostly palms soles of feet forehead
temp control

Answer 23

merocrine

Question 24

abundant in groin axillary regions
open into hair follicles
become active at puberty

Answer 24

apocrine

Question 25

whats the diff between vein and artery

Answer 25

artery red vein blue

Question 26

touch receptor

Answer 26

tactile corpuscule

Question 27

pain receptors

Answer 27

free nerve endings

Question 28

pressure receptors

Answer 28

lamellated corpuscle