structure

Question 1

what type of membrane is skin

Answer 1

cutaneous epitheleal

Question 2

layer of subcutaneous fat under skin known as

Answer 2

hypodermis

Question 3

2 main layers of skin

Answer 3

epidermis

dermis

Question 4

what type of epithelium is epidermis

Answer 4

stratified keratinized

Question 5

does epidermis get nourishment from BVs

Answer 5

no - interstitial fluid

Question 6

epidermis drained by

Answer 6

lypmph

Question 7

skin sloughing known as

Answer 7

desquamation

Question 8

fingerprints formed in which month foetal development

Answer 8

3rd

Question 9

fingerprints are downward projections of what into what

Answer 9

epidermis into dermis

Question 10

5 layers of epidermis

Answer 10

stratum - corneum
luciderm * thick skin only
granulosum
spinosum
basale

Question 11

describe stratum corneum

Answer 11

thick horny layer dead cells

Question 12

describe stratum granulosum

Answer 12

drying cells

Question 13

describe stratum spinosum

Answer 13

new keratinocytes

Question 14

describe stratum basale

Answer 14

dividing cells forming keratinocytes

Question 15

epidermis attaches to dermis via

Answer 15

basement membrane

Question 16

keratin is a

Answer 16

waterproofing protein

Question 17

epidermis completely renews in

Answer 17

40 days approx

Question 18

brown pigmentation of dermis due to melanin secreted by

Answer 18

melanocytes

Question 19

pink colour of dermis due to

Answer 19

blood circulation/oxyhaemoglobin

Question 20

yellow colour of dermis due top

Answer 20

carotenes/bile pigment

Question 21

what seperates forming a blister

Answer 21

epidermis and dermis

Question 22

dermis is connective tissue made of interlocked

Answer 22

collagen and elastic fibres

Question 23

stretch marks are ruptured

Answer 23

elastic fibres

Question 24

dermis contains

Answer 24

blood
lymph
sensory nerve endings
sweat glands
fibroblasts - blood clotting
macrophages/mast cells - immune

Question 25

sweat produced by

Answer 25

sudoriferous glands

Question 26

excessive sweating leads to

Answer 26

dehydration/sodium depletion

Question 27

4 types sensory nerve endings

Answer 27

meissners corpuscle pacinian corpuscle free nerve endings merkel cells

Question 28

meissners corpuscle responds to

Answer 28

light pressure

Question 29

pacinian corpuscle responds to

Answer 29

deep pressure

Question 30

free nerve endings respond to

Answer 30

pain | temperature

Question 31

merkel cells respond to

Answer 31

light touch discrimination shapes/textures

Question 32

hair made of

Answer 32

dead keratinised cells

Question 33

hair colouir is

Answer 33

genetically determined

Question 34

in grey hair melanin is replaced withy

Answer 34

air bubbles

Question 35

arrector pili is microscopic smooth muscle connecting what 2 structures

Answer 35

hair follicle to dermis

Question 36

what control is arrector pili under

Answer 36

autonomic involuntary

Question 37

what causes goosebumps

Answer 37

arrector pili muscles

Question 38

what secretes sebum

Answer 38

sebaceous glands

Question 39

function of sebum

Answer 39

hair soft water proofing skin anti-microbial

Question 40

how does sebum production change with age

Answer 40

increases puberty | decreases with age