In this article we will discuss about the External and Internal Structure of Lungs. External Structure of Lungs: The lungs are soft, spongy and elastic organs which are pinkish in colour. The upper most portion of each lung is called the apex and the inferior most portion is called the base. The costal surfaces of the lungs are so named [...]
In this article we will discuss about the Process of Respiration in Human Beings. Mechanism of Breathing: It means the inflow (inspiration) and outflow (expiration) of air between atmosphere and the alveoli of the lungs. It is affected by the expansion and contraction of lungs. There are mainly two processes by which the lungs are expanded or contracted. (i) The [...]
The upcoming discussion will update you about the differences between Sweat and Sebum. Difference # Sweat: 1. It is secreted by sweat glands. 2. It is fluid in nature. 3. Secretion is stimulated by rise in body temperature. 4. It is composed of mainly sodium chloride and water, traces of urea and lactic acid and very little amino acids and [...]