Skin

Question 1

What are the 3 layers of skin called?

Answer 1

Epidermis (top), Dermis (middle), Hypodermis.

Question 2

How many layers of the Epidermis is there?

Answer 2

5. Aren’t sharply defined.

Question 3

Why is keratinised epithelium important?

Answer 3

It is an outer layer of skin cells that has become hardened and died. It protects the tissues underneath by preventing certain substances passing in and out.

Question 4

What is Keratohyalin converted to?

Answer 4

Keratin.

Question 5

What is the Stratum Granulosum defined by?

Answer 5

The presence of Keratohyalin granules.

Question 6

What are the two layers of the Dermis?

Answer 6

The papillary layer and the Reticular Layer.

Question 7

What does the papillary layer contain?

Answer 7

Nerve endings, Blood vessels, loose connective tissue, cells e.g macrophages.