INTEGUMENT

Question 1

Skin

Answer 1

Protect, barrier, therrmoregulate, sensation

Question 2

Layers

Answer 2

Epidermis = specialized
Dermis = support
Hypodermis = fat and CT

Question 3

Layers of epidermis

Answer 3

1. St. basalis - basal
2. St. spinosus - spiny
3. St. granulosum - granular
4. St. lucidum - transitional
5. St. corneum - horny

Question 4

St. basalis

Answer 4

Basal, mitotically active, site of melanocytes (#5)

Question 5

St. spinosum

Answer 5

Spiny due to desmosomes (#4)

Question 6

St. granulosum

Answer 6

Granular, makes sebum and keratin (#3)

Question 7

St. lucidum

Answer 7

Transitional, loss of many organelles (#2)

Question 8

St. corneum

Answer 8

Horny layer (superficial, #1)

Question 9

Dermis

Answer 9

Support layer
1. Papillary
2. Reticular

Question 10

Papillary layer

Answer 10

Type 3 collagen (superficial)

Question 11

Reticular

Answer 11

Type 1 collagen (deep)

Question 12

Primary wound healing

Answer 12

Wound brought together manually

Question 13

Secondary wound healing

Answer 13

Wound brought together naturally

Question 14

Tertiary wound healing

Answer 14

Combination of primary and secondary

Question 15

Cells in epidermis

Answer 15

1. Keratinocytes
2. Melanocytes
3. Langerhans
4. Merckel

Question 16

Piloarrector apparatus

Answer 16

1. Hair follicle
2. External and internal sheath
3. Appocrine sweat gland
4. Piloerrector muscle
5. Sebaceous gland

Question 17

Eccrine sweat gland

Answer 17

Larger and fewer
Directly into skin surface

Question 18

Apocrine sweat gland

Answer 18

Produce bulk of sweat
Empty directly in hair follicle