1 - Derm - Introduction + Examination - S+F

Question 1

functions of skin

Answer 1

physical chemical and immunological barrier
Vit D synthesis 
prevention of water loss
temperature regulation
sensation

Question 2

3 parts of skin anatomy

Answer 2

epidermis
dermis
hypodermis

Question 3

Layers of the epidermis

Answer 3

stratum corneum
granular layer
spinous layer
basal layer

Question 4

Melanocytes - where and do what

Answer 4

basal layer - secrete melanin to keratinocytes via long projections

Question 5

Merkel cells - where and role?

Answer 5

basal layer

role in sensation

Question 6

Langerhan cells - where and what are they

Answer 6

basal layer
dendritic cells (APC's)

Question 7

What is epidermis made up of

Answer 7

stratified squamous epithelium 90% keratinocytes

rete ridges project into dermis

Question 8

dermis - layer of what? made up of?

Answer 8

conn tissue layer

collagen, elastic fibres, ground substance

Question 9

What else does the dermis contain

Answer 9

skin appendages : nerves, bl vessels, muscles, glands, hair follicles

Question 10

2 types of glands in dermis?

Answer 10

sebaceous and sweat glands

Question 11

2 types of sweat glands and their location

Answer 11

eccrine - everywhere except mucosa

apocrine - axillae and public regions, autonomic contol

Question 12

Sebaceous glands Fx

Answer 12

secrete sebum - waterproofs and lubricates

Question 13

whats in the hypodermis

Answer 13

subcut layer of adipose for store and insulation