Integumentary system

Question 1

Function:

Answer 1

Protects and covers internal organs of the body from the external environment, and a barrier for foreign organisms

Question 2

Epidermis:

Answer 2

outer layer of skin that contains mostly keratin cells. keratin allows epidermis to protect body from physical, chemical or thermal damage. DOESNT HAVE BLOOD VESSELS.

Question 3

Dermis:

Answer 3

made up of papillary layer under epidermis which connects via papillae. contains phagocytes which destroy bacteria that made it through epidermis. reticular layer contains collagen keeping skin hydrated.

Question 4

Hypodermis:

Answer 4

connects skin to organs in the body, is a shock absorber, and insulates deeper tissues.

Question 5

Sweat glands:

Answer 5

Eccrine: found all over the body and it responds to internal and external changes in temp and produces sweat to regulate body heat.
Apocrine: found mostly in genital areas, functions during puberty

Question 6

Accessory organs:

Answer 6

sweat glands, oil glands, hair and nails

Question 7

Structures:

Answer 7

skin, hair, nails, glands and ducts

Question 8

Maintain healthy system:

Answer 8

use sunscreen, wash hands regularly, stay hydrated, regularly moisturise

Question 9

Dermatitis:

Answer 9

inflammation of the skin that results in red, itchy and inflamed skin, caused by irritants such as chemicals or allergic reactions.

Question 10

Interaction with Immune system:

Answer 10

The skin is the first line of defence and acts as a barrier for pathogens trying to enter the body.