8: Skin structure & function 4

Question 1

What are the alternative names for the epidermal layers?

Answer 1

Stratum corneum (Keratin layer)

Stratum granulosum (Granular layer)

Stratum spinosum (Prickle cell layer)

Stratum basale (Basal cell layer)

Question 2

What substance caps off the DNA of basal cells to protect them from UV radiation?

Answer 2

Melanin

Question 3

The skin is metabolically active. What substances are metabolised by the skin?

Answer 3

Vitamin D

Thyroxine

Question 4

Where is Vitamin D stored once it has been synthesised in the skin?

Answer 4

Liver

Question 5

In which foods can dietary Vitamin D be obtained?

Answer 5

Oily fish

Red meat

Eggs