Integumentary System

Question 1

Describe the integumentary system, what does it consist of?

Answer 1

Hair, folicies, nails, sweat and sebaceous glands

Question 2

What are the functions of the integumentary system?

Answer 2

Protection
-Physical
-Chemical
-Biological
Thermoregulation
Excretion
Cutaneous sensation
Vitamin D synthesis
Blood reservoir

Question 3

What are the main layers of the skin?

Answer 3

Dermis
Epidermis

Question 4

Describe the epidermis layer of the skin

Answer 4

Thinner, avascular superficial portion of the skin

Question 5

Describe the dermis layer of the skin

Answer 5

Deeper, thicker, has many blood vessels
Dense irregular CT
CONSISTS OF 2 layers reticular layers and papillary layer

Question 6

What is the hypodermis

Answer 6

It’s not a layer of skin, lies deep to the dermis
Made up of areolar and adipose tissues
Anchors skin to underlying organs
Contains major blood vessels
Shock absorber + insulates the deeper body tissues

Question 7

Describe the reticular layer of the dermis

Answer 7

Deeper and thicker
Lines of cleavage- formed by separations between collagen bundles
Tearing of fibers can create stretch marks

Question 8

Describe the papillary layer of the dermis

Answer 8

Thin, superficial
Marked with projections called dermal papillae
Anchor cells to the basement

Question 9

Describe a pressure injury

Answer 9

Pressure wound or ulcer from restricted blood flow to the tissue
May occur to layers of skin that are super to bones
Ex: ankles, elbows, heels, shoulders, hips