NEET PG DENTAL EXAM

Detailed explanation-1: -The capillaries in the liver are extremely permeable, with gap junctions that allow the passage of large protein molecules, whereas the vascular epithelium to the brain is the opposite, so that only drugs that are highly lipid soluble or have a selective transporter can enter the central nervous system (CNS).

Detailed explanation-2: -Their single-layer endothelium composition, which varies among the different types of capillaries, and surrounding basement membrane makes capillaries a bit “leakier” than other types of blood vessels. This allows oxygen and other molecules to reach your body’s cells with greater ease.

Detailed explanation-3: -Are located inside all tissues. Have a very thin wall. Carry blood between veins and arteries. Carry both oxygenated and deoxygenated blood. Don’t have muscle tissue. Don’t have valves. 22-Nov-2021