blood-cerebrospinal+fluid+barrier

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• blood–cerebrospinal fluid barrier — blood brain b …   Medical dictionary

• Cerebrospinal fluid penetration — is the proportion of drug that crosses the blood brain barrier to enter the cerebrospinal fluid. It is usually expressed as a percentage of the blood concentration. Categories: NeurologyMedicine stubs …   Wikipedia

• Cerebrospinal fluid — 4 vials of CSF Cerebrospinal fluid (CSF), Liquor cerebrospinalis, is a clear, colorless, salty bodily fluid, that occupies the subarachnoid space and the ventricular system around and inside the brain and spinal cord. In essence, the brain floats …   Wikipedia

• cerebrospinal fluid — Physiol. the fluid in the ventricles of the brain, between the arachnoid and pia mater, and surrounding the spinal cord. [1895 1900] * * * ▪ anatomy       clear, colourless liquid that fills and surrounds the brain and the spinal cord and… …   Universalium

• Blood-brain barrier — The blood brain barrier (BBB) is a metabolic or cellular structure in the central nervous system (CNS) that restricts the passage of various chemical substances and microscopic objects (e.g. bacteria) between the bloodstream and the neural tissue …   Wikipedia

• barrier — 1. An obstacle or impediment. 2. In psychiatry, a conflictual agent that blocks behavior that could help resolve a personal struggle. [M.E., fr. O.Fr. barriere, fr. L.L. barraria] blood air b. the material intervening between alveolar air and the …   Medical dictionary

• blood-brain barrier — [blud′brān′] n. Physiol. the barrier created by the walls of the capillaries of the brain that prevents certain substances, as most proteins and drugs, from passing from the blood into the brain tissue and cerebrospinal fluid …   English World dictionary

• fluid — fluidal, adj. fluidly, fluidally, adv. fluidness, n. /flooh id/, n. 1. a substance, as a liquid or gas, that is capable of flowing and that changes its shape at a steady rate when acted upon by a force tending to change its shape. adj. 2.… …   Universalium

• Blood-brain barrier — A protective network of blood vessels and cells that filters blood flowing to the brain. * * * blood brain barrier n a naturally occurring barrier created by the modification of brain capillaries (as by reduction in fenestration and formation of… …   Medical dictionary

• blood-brain barrier — the mechanism that controls the passage of molecules from the blood into the cerebrospinal fluid and the tissue spaces surrounding the cells of the brain. The endothelial cells lining the walls of the brain capillaries are more tightly joined… …   The new mediacal dictionary

• blood–brain barrier — noun Anatomy a semipermeable membrane separating the blood from the cerebrospinal fluid, and constituting a barrier to the passage of cells, particles, and large molecules …   English new terms dictionary