GENERAL HISTOLOGY

Detailed explanation-1: -The shape of the hair follicle, which is inherited from our parents is the determining factor in whether our hair is straight or curly. If your follicle is round, hair will tend to grow straight, while an oval follicle will give wavy hair and a hooked or elliptical-shaped follicle will give you curly hair.

Detailed explanation-2: -The two major types of hair follicles on the human body are terminal hair follicles and vellus hair follicles. The terminal hair follicles are larger than the vellus hair follicles and extend into the subcutaneous fat by anywhere from 2-5mm from the skin surface during hair growth.

Detailed explanation-3: -In both sexes, these hormones contribute to increased body hair and, later, balding in males. An increase in androgens in females can actually change the shape of the hair follicle from round to flat and this can instigate a change in texture from straight to curly.