KIN 2500 Chapter : Chapter 15 Brain And Cranial Nerves
Document Summary
Si: matt landry mland84@lsu. edu: the brain is composed of four major components: Cranial meninges: cranial meninges are three connective layers that, pia mater, arachnoid mater, dura mater, the pia mater is the innermost cranial meninges. It is a thin layer of delicate areolar connective tissue that is highly vascularized and tightly adheres to the brain: the arachnoid mater lies external to the pia mater. It is a delicate web of collagen and elastic fibers. Immediately deep to the arachnoid mater is the subarachnoid space: the dura mater is an external tough, dense irregular connective tissue layer composed of two fibrous layers. It is the strongest of the three layers: between the arachoid mater and the overlying dura mater is the subdural space. Cerebral spinal fluid: a clear, colorless liquid that citculates in the ventricles and subarachnoid spaces. Csf preforms several important functions: buoyancy, protections, stability, formation of csf, csf is formed by the choroid plexus in each ventricle.