Chapter 13, Problem 6RC

Summary Introduction

To review:

The function of the blood–brain barrier (BBB).

Introduction:

The BBB is a very selective barrier membrane, which creates a barrier between the blood and the extracellular fluid present in the central nervous system (CNS). This barrier is formed by the endothelial cells of the brain. It allows the movement of water, certain gases, and lipid soluble solute across the membrane by the means of passive and selective transport. Astrocytes, one of the neuroglia helps in the maintenance of the BBB.