Chapter 5: The Integumentary System

Question 1

What are the functions of the skin?

Answer 1

protection, excretions, maintain body temperature, sensation, Vitamin D production

Question 2

Integument

Answer 2

skin

Question 3

What is another term for skin?

Answer 3

cutaneous membrane

Question 4

What is the integumentary system?

Answer 4

skin and accessory structures

Question 5

What are the accessory structures?

Answer 5

hair, nails, skin glands

Question 6

What are the layers of skin?

Answer 6

epidermis and dermis

Question 7

subcutaneous layer

Answer 7

separates skin from the underlying organs

Question 8

What are the general components of the skin?

Answer 8

epithelial tissue, connective tissue proper, hair, glands, muscles, blood vessels, nervous tissue

Question 9

What is the epidermis made of?

Answer 9

stratified squamous epithelium

Question 10

True or false: the epidermis is not keratinized

Answer 10

false

Question 11

How many layers does the epidermis have?

Answer 11

4-5

Question 12

Where is the epidermis the thickest?

Answer 12

plans, fingertips, and soles of the feet

Question 13

How many dead cell does the average person shed every minute? How many lbs in their lifetime?

Answer 13

50,000
40lbs

Question 14

What are the layers of the epidermis?

Answer 14

Stratum corneum
Stratum granulosum
Stratum spinosum
Stratum basale

Question 15

What is the Stratum corneum made of?

Answer 15

20-30 layers of dead flattened cells filled with keratin

Question 16

How many layers of flattened cells does the Stratum granulosm have?

Answer 16

5 layers

Question 17

What is the Stratum granulosum composed of?

Answer 17

deteriorating organelles and cytoplasm full of granules

Question 18

What is the Stratum spinosum made of?

Answer 18

several layers of keratinocytes

Question 19

What do the cells in the Stratum spinosum contain?

Answer 19

pre-keratin molecules

Question 20

What is the Stratum basale made of?

Answer 20

one layer of mitotically active stem cells