Our hair follicles contain pigment cells known as melanocytes that produce the pigment melanin. Melanin imparts the hair its color. When these cells stop producing melanin, then the hair …
Vertigo is a sensation where a person feels as if he is spinning or the objects or surroundings are moving. It is a condition directly related to the inner …
Your respiratory tract consists of nose, pharynx, larynx, trachea, bronchi, bronchioles and lungs. Bronchi are also known as bronchial tubes that carry air in and out of the lungs. …