A & P Skin

Question 1

What’s the largest organ in the body?

Answer 1

The skin

Question 2

What are the 7 functions of the skin?

Answer 2

Sensation
Heat regulation 
Absorption 
Protection 
Excretion
Secretion
Vitamin D Production

Question 3

What are the three main layers of the skin?

Answer 3

Epidermis
Dermis
Hyperdermis (Subcutaneous layer)

Question 4

What are the five layers of the Epidermis

Answer 4

Stratum Corneum (Horny Layer)
Stratum Lucidum (Clear Layer)
Stratum Granulosum (Granular Layer)
Stratum Spinosum (Prickle Cell Layer)
Status Germinativum (Basal Layer)

Question 5

What is the state of the cells in the Germinativum zone

Answer 5

Living

Question 6

Name two proteins found in the skin

Answer 6

Collagen and Elastin

Question 7

What is another name for the sudoriferous glands?

Answer 7

Sweat glands

Question 8

Name two types of sweat glands

Answer 8

Eccrine and Apocrine

Question 9

Where are eccrine glands found

Answer 9

Everywhere

Question 10

Where are Apocrine Glands found?

Answer 10

Groin and armpits

Question 11

What is the subcutaneous Layer mostly made up of?

Answer 11

Adipose tissue

Question 12

Where are Melanocytes found

Answer 12

In the Stratum Germinativum

Question 13

What are reticular fibres?

Answer 13

Fine branching patterns in connective tissue to link bundles of collagen fibres

Question 14

How much of the weight of skin does Collagen make up?

Answer 14

About 75%

Question 15

What does elastin do?

Answer 15

Keeps skin supple and resilient and holds collagen in place

Question 16

What does Collagen do

Answer 16

Keeps skin plump and provides strength

Question 17

What is the Papillary Layer

Answer 17

Under Epidermis and has fine strands of elastic tissue

Question 18

What’s in the Papillary Layer

Answer 18

Nerve endings, blood and lymphatic capillaries that supply blood and nutrients to allow mitosis

Question 19

What’s the Reticular Layer like

Answer 19

It is the thickest part of the dermis and contains a dense network of protein fibres (collagen and elastin)

Question 20

What’s in the reticular Layer

Answer 20

Roots of the hair, sebaceous glands, sweat glands, lymphatic vessels, receptors, nails and blood vessels

Question 21

Where is dermis thinnest?

Answer 21

Eyelids, palm of hands and soles of feet

Question 22

Where is adipose tissue found?

Answer 22

Around organs and under the skin

Question 23

What is adipose tissue adapted to store?

Answer 23

Fat which is a reserve for food when energy intake is less than output

Question 24

Does adipose tissue vary in thickness?

Answer 24

Yes based on age, sex and general health. Typically thicker in men than women