What is the structure of a hair?
The hair is a follicule group of several types of hair: one main with two secondary then several smaller ones for the deepest layers of hair (the underlayer). Depending on the quantity of each type, in proportion, the general hair will be simple texture (not much of the smallest deep hair) or double texture (much of the deepest hair). Each main hair has a sebaceous gland and a sweat gland. The former hydrates the skin and hair, and helps in softening the hair and gives the shine. It also gives elasticity to the skin. The latter is not involved in thermoregulation and sweat production as such, but is responsible for the odour or strong smell of a dog.
