Question
Biology Question on Structural Organisation of Animals and plants
Hair present in the skin are
A
epidermal in origin and made of dead cells
B
epidermal in origin and made of living cells
C
dermal in origin and made of living cells
D
dermal in origin and made of dead cells.
Answer
epidermal in origin and made of dead cells
Explanation
Solution
Each hair is present in a tubular pit called hair follicle which is made up by sinking of epidermis. Living cells are present only at the base of hair i.e. in hair papilla, rest of the hair is dead and is divisible into outer cuticle, middle cortex and inner medulla.