Liver has many functions. One of them is to secrete bile. The liver cells per day secrete about 600 to 1000 ml of bile. Bile secretion is a continuous process. Certain substances are actively secreted and certain other substances are passively transported. Water molecules follow the transported substances mechanism. Histology of Liver: Figure 5.22 shows basic histology of liver. Stages [...]
The below mentioned article provides notes on anterior pituitary gland. i. Anterior pituitary gland is also known as adenohypophysis. ii. Secretes a number of hormones which are generally termed as tropic hormones. iii. The secretion of hormones from anterior pituitary is regulated by the factors secreted by the hypothalamus (Fig. 6.7). The hypothalamic factors are of two types, namely: a. [...]
In this article we will discuss about the parts of human respiratory systems. Nose: a. Hairs are present in the nasal cavity. These hairs serve to filter the air that is entering the respiratory system. Any particle whose size is more than 6 ยต gets filtered in the nose. b. The mucous membrane of the nose is highly vascular. As [...]