The peculiarities that have been encountered in the splenic circulation are the presence of both 'open' and 'closed' circulation. The pulp acts as filter for separating R.B.C. from plasma. Phagocytes of the pulp remove the foreign particles from the blood. Pulp also acts as blood reservoir yet its function as such in human beings is not clear but in dogs [...]
The sugar content of blood is not a passive constituent. Blood sugar level is found to exert enormous influence in regulating the functions of various tissues in different ways. The following is a brief summary: i. On Stomach: Low blood sugar stimulates gastric secretion and gastric movements. Hunger contractions are always stimulated by low sugar (as also by insulin injections). [...]
According to shape and layer of cells, epithelial tissue which are present in human body is divided in two main types: 1. Simple Epithelial Tissue 2. Compound Epithelial Tissue. Type # 1. Simple Epithelium Tissue: I. Pavement (Squamous) (Fig. 1.20A): Description: It is composed of a single layer of large flat cells placed on a thin basement membrane. Distribution: It [...]