The Ventricles and Cerebrospinal Fluid

The Ventricles and Cerebrospinal Fluid - The Ventricles and...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
The Ventricles and Cerebrospinal Fluid There are four cavities in the brain, called ventricles. The ventricles are filled with cerebrospinal fluid  (CSF), which provides the following functions:  Absorbs physical shocks to the brain Distributes nutritive materials to and removes wastes from nervous tissue Provides a chemically stable environment There are four ventricles:  Each of two lateral ventricles (ventricles 1 and 2) occupies a cerebral hemisphere. The third ventricle is connected by a passage (interventricular foramen) to each of  the two lateral ventricles. The fourth ventricle connects to the third ventricle (via the cerebral aqueduct) and to  the central canal of the spinal cord (a narrow, central tube extending the length of the spinal  cord). Additional openings in the fourth ventricle allow CSF to flow into the subarachnoid  space. A network of capillaries called the choroid plexus projects into each ventricle. Ependymal cells (a 
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/10/2011 for the course PT 101 taught by Professor Staff during the Spring '10 term at Texas State.

Ask a homework question - tutors are online