For Blood-Brain Barrier we have terms and definitions in 9 topics. The topics are Cancer, HIV and AIDs, Health, Huntingtons Disease, Medical, Multiple Sclerosis, Nervous System Disorders, Nutrition and Science.

Blood-brain Barrier (Cancer)

A network of blood vessels with closely spaced cells that makes it difficult for potentially toxic substances (such as anticancer drugs) to penetrate the blood vessel walls and enter the brain.

Blood-brain Barrier (HIV and AIDs)

A tight network of cells lining the vessels of the brain that makes it difficult for drugs to get into brain tissue.

Blood-brain Barrier (Health)

The protective membrane that separates circulating blood from brain cells.

Blood-brain Barrier (Huntingtons Disease)

A group of cells that form a special, impermeable lining in the blood vessels of the brain. The blood-brain barrier is made up of astrocytes and prevents toxic substances in the blood from entering the brain.

Blood-brain Barrier (Medical)

A layer of tightly bound cells that prevents certain substances carried in the bloodstream from entering the brain

Blood-brain Barrier (Multiple Sclerosis)

A semipermeable cell layer around blood vessels in the brain and spinal cord that prevents large molecules, immune cells, and potentially damaging substances and disease-causing organisms (e.g., viruses) from passing out of the blood stream into the central nervous system (brain and spinal cord). A break in the blood-brain barrier may underlie the disease process in MS.

Blood-brain Barrier (Nervous System Disorders)

The protective membrane that separates circulating blood from brain cells.

Blood-brain Barrier (Nutrition)

A mechanism involving the capillaries and certain other cells of the brain that keeps many substances, especially water-based substances, from passing out of the blood vessels to be absorbed by brain tissue.

Blood-brain Barrier (Science)

The BBB has several important functions as protects the brain from "foreign substances" in the blood that may injure the brain, protects from hormones and neurotransmitters in the rest of the body and also maintains a constant environment for the brain. It is semi-permeable; that is, it allows some materials to cross, but prevents others from crossing. In most parts of the body, the smallest blood vessels, called capillaries, are lined with endothelial cells. The endothelial tissue has small spaces between each individual cell so substances can move readily between the inside and the outside of the vessel. However, in the brain, the endothelial cells fit tightly together and substances cannot pass out of the bloodstream.

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