INTEGUMENT Flashcards
1
Q
Skin
A
Protect, barrier, therrmoregulate, sensation
2
Q
Layers
A
Epidermis = specialized
Dermis = support
Hypodermis = fat and CT
3
Q
Layers of epidermis
A
- St. basalis - basal
- St. spinosus - spiny
- St. granulosum - granular
- St. lucidum - transitional
- St. corneum - horny
4
Q
St. basalis
A
Basal, mitotically active, site of melanocytes (#5)
5
Q
St. spinosum
A
Spiny due to desmosomes (#4)
6
Q
St. granulosum
A
Granular, makes sebum and keratin (#3)
7
Q
St. lucidum
A
Transitional, loss of many organelles (#2)
8
Q
St. corneum
A
Horny layer (superficial, #1)
9
Q
Dermis
A
Support layer
1. Papillary
2. Reticular
10
Q
Papillary layer
A
Type 3 collagen (superficial)
11
Q
Reticular
A
Type 1 collagen (deep)
12
Q
Primary wound healing
A
Wound brought together manually
13
Q
Secondary wound healing
A
Wound brought together naturally
14
Q
Tertiary wound healing
A
Combination of primary and secondary
15
Q
Cells in epidermis
A
- Keratinocytes
- Melanocytes
- Langerhans
- Merckel
