The sheath is called the hair follicle. It surrounds the hair root and provides nourishment to the growing hair.
The inner lining of a hair follicle is formed by the inner root sheath, which is made up of epithelial tissue. This sheath helps to protect and nourish the growing hair shaft as it develops within the follicle.
The hair follicle is an organ under the skin which is responsible for growing a single hair. Thousands of them are present throughout the skin.
If supernumerary teeth are causing no symptoms or complications, they may not require treatment. However, in most cases of hyperdontia, the extra teeth need to be removed, even if they are not causing discomfort. A dentist may recommend removal if extra teeth cause: difficulties chewing or eating.
In a growing child, the main symptoms are diarrhea and a failure to gain weight.
Causes of ingrown facial hair can include having oily skin, which stops the hairs growing outwards and forcing them inward. Shaving the wrong away (against the grain) can also cause ingrown facial hair as it disrupts the shape of the hair follicle causing it to grow the other way.
The hair papilla is an intrusion of the underlying dermis into the hair bulb. It holds a knot of capillaries that provides nutrients to the growing hair follicle.
all hair growth occurs from the base of the hair (the follicle), it is from here that the protein which hair is made of (keratin) is secreated
The actively growing cells in hair are found in the bulb, which is located at the base of the hair follicle. This is where new hair cells are produced, allowing the hair to grow longer.
It's rare.
Yes the pain can be a symptom. Other symptoms that may come with it can be fatigue, fever, weight loss, and anemia. If your son has no other symptoms than the pain, it is possible that it could just be growing pains. You should take him to the doctor to see if his bones are growing properly.
not growing up or refusing to take responsibility as an adult