integumentary system Flashcards
1
Q
layers of the epidermis in thick skin
A
- stratum corneum
- stratum lucidum
- stratum granulosum
- stratum spinosum
- stratum basale
2
Q
layers of the epidermis in thin skin
A
- stratum corneum
- stratum granulosum
- stratum spinosum
- stratum basale
3
Q
layers of the dermis
A
- papillary layer of the dermis
- reticular layer of the dermis
4
Q
layers of the skin
A
- epidermis
- dermis
- hypodermis
5
Q
majority of the cells seen in the epidermis
A
keratinocytes
6
Q
- primarily in the stratum basale
- produce melanin
A
melanocytes
7
Q
- primarily in the stratum spinosum
- spidery shaped cells
A
langerhans cells
8
Q
- clearish cells
- primarily in the stratum basale
- pick up vibrations
A
merkel cells
9
Q
- very thick
- many layers of dead cells
- look flaky and detached
A
stratum corneum
10
Q
- looks blue due to the dead cells
- discontinuous layer
- only in thick skin
A
stratum lucidum
11
Q
- discontinuous layer
- 2 or more cells thick
- cells look grainy
A
stratum granulosum
12
Q
- thick later
- cells in this layer look spiky
A
stratum spinosum
13
Q
- single row of cells
- lowest layer of the epidermis
A
stratum basale
14
Q
- aka the superficial fascia
- made of adipose loose connective tissue
A
hypodermia
15
Q
- also called lamellar corpuscle
- found in the reticular layer of the dermis
- sensitive to vibrations
A
pacinian corpuscle
16
Q
- also called tactile corpuscles
- found in the papillary layer of the dermis
- rapidly adapting light touch receptors
A
messier’s corpuscles
17
Q
- part of hair protruding from the skin
A
hair shaft
18
Q
- part of hair anchored in the skin
A
hair root
19
Q
- surface of the hair cortex
- resembles roof shingles
A
hair cuticle
20
Q
- outer part of the hair
- where color is located
A
hair cortex
21
Q
- center of the hair
- gives it its thickness
A
hair medulla
22
Q
- round part of the hair root at the bottom
A
hair bulb
23
Q
- bump of the tissue within the hair bulb
A
hair papilla
24
Q
- made of hard keratin
A
nail plate
25
- where the skin merges with the top of the nail plate
| - another name for the cuticle
eponychium
26
- where the skin merges with the bottom of the nail plate
| - another name for the quick
hyponychium
27
- mostly not visible
- where the nail grows outward
- wrapped by the nail matrix cells
nail root
28
- most visible part of the nail root
lunula
29
- these cells wrap around the proximal end of the nail root
nail matrix
30
- nail plate is attached to this
nail bed
