(67) Structure Of Hair Follicle - Hair Color - How Does Hair Growth Work

1.Where are the melanocyte cells located? What are their purposes? /1

Melanocyte cells are located in the hair bulb, which is the base of the hair follicle, and their primary purpose is to produce melanin, the pigment responsible for the color of hair.

2.Why does body hair grows more slowly compared to the hair on our heads? /1

Body hair grows more slowly than scalp hair due to the shorter anagen phase of the hair growth cycle, which limits the time follicles remain active in producing hair.

3.What hormonal and environmental factors affect the hairs integrity and colour? /1

Hormonal factors such as androgens can increase the size of hair follicles and impact the production of melanin, while environmental factors like UV exposure and chemical treatments can lead to hair damage and fading of color.

4. What happens when melanin production stops in the hair? /1

When melanin production stops, hair becomes gray or white, as the absence of pigment results in a lack of color in the strands.

5. Write one new concept you learned from this video. /1

One new concept I learned is that the hair growth cycle consists of three phases: anagen (growth phase), catagen (transitional phase), and telogen (resting phase), which significantly affects hair density and overall health.