Skin (2) Dermis

Question 1

Name the 2 layers which make the dermis

Answer 1

papillary layer
reticular layer

Question 2

What characterises the papillary layer of the dermis?

Answer 2

Loose connective tissue
Cellular

Question 3

What characterises the reticular layer of the dermis?

Answer 3

Dense irregular connective tissue
Fibrous

Question 4

What layer of the dermis is dense irregular?

Answer 4

reticular

Question 5

What layer of the dermis is characterised by loose connective tissue?

Answer 5

Papillary

Question 6

Name layers A and B of the dermis

Answer 6

Question 7

Does the papillary layer have a regular or irregular interface with epidermis?

Answer 7

irregular

Question 8

Is the papillary layer of the dermis protective against pathogens?

Answer 8

YES, it is cellular (e.g. macrophages)

Question 9

What is the purpose of the papillary layer having blood vessels?

Answer 9

Thermoregulation
Nutrition

Question 10

Does the papillary have nerve endings?

Answer 10

YES, can sense an organ

Question 11

What layer of the dermis contains collagen bundles?

Answer 11

reticular layer

Question 12

What can happen to the reticular layer of the dermis in old age?

Answer 12

loss of elasticity

Question 13

How would you describe the reticular layer of the dermis?

Answer 13

Dense irregular connective tissue
Collagen bundles in three planes

Question 14

What layer of the dermis have elastic fibres?

Answer 14

reticular

Question 15

What components make up the hair follicle?

Answer 15

1. hair and sheath
2. arrector pili muscles
3. sebaceous glands

Question 16

What happens to the hair when the arrector muscles contract?

Answer 16

hair straightens

Question 17

Where do the arrector pili muscles attach?

Answer 17

follicle

Question 18

Where are the sebaceous glands located?

Answer 18

between the follicle and arrector pili muscle

Question 19

What does the sebaceous gland secrete?

Answer 19

sebum

Question 20

What are the 3 types of skin gland?

Answer 20

sebaceous
apocrine sweat glands
eccrine

Question 21

What gland does sebum secrete and hair follicle called?

Answer 21

sebaceous

Question 22

What characterises the apocrine sweat glands?

Answer 22

axilla
protein rich (B.O)

Question 23

What is produced in the eccrine gland?

Answer 23

sweat

Question 24

Where are the eccrine sweat glands located?

Answer 24

dermis

Question 25

Name structure A-C

Answer 25

Question 26

Describe the morphology of the eccrine sweat glands

Answer 26

simple tubular glands
coiled and straight duct in dermis
spiral channel epidermis

Question 27

What type of secretion secretes from a eccrine sweat gland?

Answer 27

watery secretion

Question 28

Are the eccrine sweat glands thermoregulatory?

Answer 28

YES

Question 29

Name the sensory nerve endings of skin

Answer 29

Meissner’s corpuscles
Paccinian corpuscles
Pain receptors
Thermoreceptors

Question 30

What is the role of the meissner’s corpuscles?

Answer 30

light touch - fingertips

Question 31

What is the role of the paccinian corpuscles?

Answer 31

vibration and pressure

Question 32

What are the stages in skin repair?

Answer 32

Question 33

Answer 33

Question 34

Name the layers of the skin A-F

Answer 34