The Integumentary System Flashcards
1
Q
Dermatology
A
the study of skin
2
Q
What is the epidermis?
A
- made up of keratinised stratified squamous epithelium
- tough, waterproof outer layer that’s continuously worn away
3
Q
What is the dermis?
A
- made up of areolar and adipose connective tissue containing collagen and elastic fibres
- lies beneath the epidermis which is thicker and contains the nerves, blood vessels, sweat glands and hair roots
4
Q
What are the 5 layers of the epidermis (bottom to top)?
A
- Stratum basale (basal cell layer)
- Stratum spinosum (prickle cell layer)
- Stratum granulosum (granular cell layer)
- Stratum lucidum (clear cell layer)
- Stratum corneum (horny-cell layer)
5
Q
What are melanocytes?
A
produce a pigment called melanin, that contributes to skin colour and absorbs UVR from the sun
6
Q
What is the process of desquamation?
A
the skin cells are constantly shed
