Answer the following questions:
1. What is the special structure of the skin?
2. What are the parts of the hair?
3. What composes the outside layer of the skin?
4. What gives hair and skin their color?
5. What is the difference between the shaft of curly hair and straight hair?
6. Compare the hair of other skin surfaces from the hair in the scalp.
Answers & Comments
1. hypodermis
2. hair shaft, root, follicle
3. epidermis
4. Melanin content of skin is the main determining factor of skin and hair colour
5. The first difference between curly hair and straight hair is that shape of the shaft. Straight hair has a circular follicle shape so disulfide bridges can form evenly around the cuticles forming no coil like shapes. On the other hand, curly hair grows out of a more oval shaped follicle.
6. What is the difference between scalp and hair?
The scalp is obviously hairy and has many sebaceous glands (oil glands) scattered across it. ... Scalp hairs protrude from structures known as hair follicles, which are situated in the dermis of the scalp. The hair follicle is comprised of layers of cells that work together to support and form the hair shaft.
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