PSY290H5 Chapter Notes - Chapter 4: Interthalamic Adhesion, Mammillary Body, Reticular Formation
Document Summary
Divisions of the nervous system: division of the nervous system that is located within the skull and spine, composed of 2 divisions, the brain, the spinal cord. The peripheral nervous system (pns: the division that is located outside of the skull and spine, somatic nervous system (sns) Functions and locations of various cranial nerves are specific, therefore disruption of particular nerves provides excellent clues about the location and extent of tumors and other kinds of brain pathology. Cns (brain and spine) most protected organs in the body: encased in bone and covered by three protective membranes, three meninges, outer meninx tough membrane called the dura mater ( tough mother)". Inside the dura mater fine arachnoid membrane (spiderweb-like membrane) ii: beneath arachnoid membrane subarachnoid space (contains many large blood vessels and cerebrospinal fluid) Innermost meninx pia mater ( pious mother") which adheres to the surface of the cns iv. c: protecting the cns is the cerebrospinal fluid (csf)