1 - Derm - Introduction + Examination - S+F Flashcards Preview

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Flashcards in 1 - Derm - Introduction + Examination - S+F Deck (13)
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1
Q

functions of skin

A
physical chemical and immunological barrier
Vit D synthesis 
prevention of water loss
temperature regulation
sensation
2
Q

3 parts of skin anatomy

A

epidermis
dermis
hypodermis

3
Q

Layers of the epidermis

A

stratum corneum
granular layer
spinous layer
basal layer

4
Q

Melanocytes - where and do what

A

basal layer - secrete melanin to keratinocytes via long projections

5
Q

Merkel cells - where and role?

A

basal layer

role in sensation

6
Q

Langerhan cells - where and what are they

A
basal layer
dendritic cells (APC's)
7
Q

What is epidermis made up of

A

stratified squamous epithelium 90% keratinocytes

rete ridges project into dermis

8
Q

dermis - layer of what? made up of?

A

conn tissue layer

collagen, elastic fibres, ground substance

9
Q

What else does the dermis contain

A

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

10
Q

2 types of glands in dermis?

A

sebaceous and sweat glands

11
Q

2 types of sweat glands and their location

A

eccrine - everywhere except mucosa

apocrine - axillae and public regions, autonomic contol

12
Q

Sebaceous glands Fx

A

secrete sebum - waterproofs and lubricates

13
Q

whats in the hypodermis

A

subcut layer of adipose for store and insulation

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