Basic structure of skin Flashcards
1
Q
3 main layers of the skin
A
- epidermis
- dermis
- hypodermis
2
Q
Epidermis
A
Outer layer
3
Q
Dermis
A
- mid layer
- blood supply
- nerve supply
- collagen + elastin
4
Q
Hypodermis
A
- fatty layer
- heat preservation
- cushion to protect the inner structure of the body
5
Q
Basic cell structure
A
- cell membrane
- nucleus
- cytoplasm
6
Q
Nucleus
A
- brain of cell
- responsible for reproduction
- responsible for cell function
7
Q
Cell membrane
A
- protects the cell
- forms a barrier between the cell contents and the outside world of the cell
- semi permeable: food material moves into the cell via the membrane and waste proteins move out via the membrane
8
Q
Cytoplasm
A
- gel/jelly liquid
- surrounds + protects nucleus ( cushioning support)
- cell organelles are suspended in the cytoplasm
- each organelle has a function
9
Q
Functions of the skin (7)
A
- main sensory organ
- excretory organ
- secretory organ
- temperature regulation
- protection
- absorption
- synthesizes vitamin D when exposed to sunlight
10
Q
Main sensory organ
A
- it enables us to experience pain, touch, temp, pressure and tactile recognition
11
Q
Excretory organ
A
- excreting water, salt, waste products (sweat)
12
Q
Temp regulation
A
- producing sweat ( cools down body when the sweat evaporates)
- dilation when hot and constriction when cold of blood vessels, errector pili muscles
13
Q
Protection (major function of body)
A
- protects deeper, more delicate organs
- acts as a barrier against invasion (physical and chemical agents)
- provides waterproof layer
14
Q
Absorption ( to a limited extent)
A
- certain substances may be absorbed through the epidermis ( for local effects) and dermis goes into bloodstream for systematic effects ( aromatherapy oils is an example)
15
Q
Synthesis of vitamin D when exposed to sunlight
A
- regulates absorption of a calcium and facilitates/supports a healthy immune function
- to an extent UV light has antimicrobial properties
16
Q
Dermatology
A
Study of the skin and it’s diseases + disorders
17
Q
Disease
A
- we cannot treat
- best to refer the client to a medical practitioner ( Herpes simplex, cold sores, fever blisters, ringworm, bacterial acne
18
Q
Disorder
A
- something we can treat + improve in certain aspects ( pigmentation, ice pick scarring and uneven skin texture
19
Q
Why is the study of the skin important
A
- we need to recognize skin diseases + disorders
- we need to learn when we may treat the skin and when it is best to refer to a general practitioner/dermatologist
- we need to have a thorough understanding of the skin to work with our clients
- we need to learn how to treat either in a salon or with prescription home care products
*we cannot achieve the above without good fundemental knowledge of the skin
