Blood Brain Barrier

The brain has infiltrated a huge vascular network called thin and thin capillaries, and the blood cells have to be delivered as a single file. There is only a sufficient number of capillaries in the brain. And if you put them all together, they will extend from Tucson to Tijuana. These capillary vessels are surrounded by monolayer cells. This cell layer forms a barrier between capillary and cells and brain fluid. These barrier forming cells are called "endothelial cells".

The third safeguard taken by the brain is called the blood brain barrier (blood brain barrier: a group of special capillaries (capillaries: small blood vessels seen only in the brain), whose purpose is to filter only the blood Glucose (glucose: this is a combination of sugar and water), water can enter the brain, but unfortunately it does not prevent the anesthetic from entering the brain.Barrier is a unique capillary It consists of a vascular network These capillaries are filters of harmful chemicals carried by the blood, but allow oxygen, water, and glucose to enter the brain.

Brain Brain Burquest Your brain needs a protected environment to function properly. A special barrier called the blood brain barrier will help maintain this environment. It has specialized cells that affect almost all brain capillaries. In the rest of your body, most capillary membranes have pores. But in your brain capillaries are closely connected and covered with a fat barrier called the "glia pod". This sheath is coming from a nearby astrocyte called astrocyte. Drugs leaving capillaries of the brain must pass through the capillary walls themselves (because the pores do not pass through), and the membranes of astrocytes reach the cells in the brain. As a general rule, the rate at which a drug enters the brain depends on its lipid (fat) solubility.

A very important obstacle is the blood brain barrier. These are special phagocytic cells that filter a drop of blood to the brain and spinal cord due to the sensitivity of the nervous system. However, the blood brain barrier does not prevent nutrients such as glucose from flowing to the brain. Other innate immunity break down bacteria in the eyes, destroy symbiotic and innocuous bacteria, cover every inch of GIT, and do not allow lysosomal activity that new bacteria to invade space and heat . Develop mechanisms that allow body temperature elevation to kill intruders