biology

Question 1

what are the layers of the skin?

Answer 1

epidermis, dermis, hypodermis

Question 2

what is the epidermis?

Answer 2

the upper or outer layer of the skin

Question 3

what is the dermis?

Answer 3

the thick layer of living tissue which contains blood capillaries, nerve endings, sweat glands, hair follicles

Question 4

what is the hypodermis?

Answer 4

the subcutaneous layer of loose connective tissue

Question 5

what are the layers of the epidermis?

Answer 5

horny layer ( stratum corneum )
clear layer ( stratum lucidium )
granular layer ( stratum granulosum )   
prickle cell layer ( stratum spinosum )
basal layer ( stratum basale )

Question 6

what is collagen?

Answer 6

protein fibers that add strength and support to the dermis

Question 7

what is the subcutaneous layer?

Answer 7

made up of fat cells for protection

Question 8

what is elastin?

Answer 8

elastic protein fibres that allow the skin to stretch

Question 9

what are sweat glands?

Answer 9

extretes watery substances

Question 10

what are sensory nerve endings?

Answer 10

sense the senses

Question 11

what is the sebaceous gland?

Answer 11

attached to hair follicles creating sebum

Question 12

what is the arrector pili muscle?

Answer 12

reacts to cold and heat

Question 13

what are blood vessles?

Answer 13

provide nutrients to the skin and regulate body temperature

Question 14

what is the dermal papilla?

Answer 14

contains nerve endings and blood capillaries to help nourish the hair

Question 15

what are two functions of nerve endings?

Answer 15

dectects stimuli to sense pain so the body is protected.

sense pressure for awareness of surroundings

Question 16

what are the labels of the hair?

Answer 16

hair shaft, pore, arrector pili muscle, blood vessels, sebaceous gland, sensory nerve endings, dermal papilla, sweat gland

Question 17

what does shapesv stand for

Answer 17

sensations, heat regulation, absorption, protection, elimination, secretion, vitamin d

Question 18

the hair structure:

Answer 18

hair cuticle, cortex, medulla

Question 19

what is another phrase for fragilitas crinium?

Answer 19

split ends

Question 20

what is another phrase for trichorrhexis nodosa?

Answer 20

damaged hair

Question 21

what is seborrhoea?

Answer 21

accumulation of scales of greasy skin

Question 22

what is psoriasis?

Answer 22

red, bumpy patches covered with silvery scales

Question 23

what is psoriasis?

Answer 23

red, bumpy patches covered with silvery scales

Question 24

what is keloids?

Answer 24

a raised scar

Question 25

what is monilethrix?

Answer 25

a beaded hair disorder

Question 26

what is pityriasis capitis?

Answer 26

dandruff

Question 27

what are three bacterial infections?

Answer 27

impetigo, carbuncles, folliculitis

Question 28

what are three infectations?

Answer 28

head lice, body lice, scabies

Question 29

what are three fungal infections?

Answer 29

ringworm of the scalp, ringworm of the feet, ringworm of the nails

Question 30

what are two viral infections?

Answer 30

herpes, warts

Question 31

what are different hair tests?

Answer 31

hair pull test, elasticity, porosity, density

Question 32

what is the structure of the nail?

Answer 32

free edge, hyponichium, nail plate, lunula, eponychuim ( cuticle ), nail wall, nail groove, nail bed, matrix, nerve endings

Question 33

what are examples of internal defence?

Answer 33

whiteblood cells, antibodies

Question 34

define pathogen.

Answer 34

a disease causes by micro-organisms

Question 35

what are examples of external defence?

Answer 35

gloves, bandages, goggles

Question 36

what is the hair shaft?

Answer 36

visible part of the hair

Question 37

what is the hair follicle?

Answer 37

anchors each hair into the skin

Question 38

what is the inner and outer root sheath?

Answer 38

surrounds and protects the growing hair