PSY 2301 Lecture Notes - Lecture 2: Pia Mater, Cerebrospinal Fluid, Subarachnoid Space
23 Nov 2016
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Document Summary
Neuroanatomy and functional organization of the nervous system. Overview of brain function and structure: creating a sensory reality. Evolution has equipped each species with a view of the world that helps it survive: integrating information. Current knowledge can be compared with past knowledge: producing behavior. **sympathetic and parasympathetic divions are fight or flight, calm down or heat up** From the brain: efferent (e is for exist) Cerebrospinal fluid (csf: sodium chloride and other salts, fills the ventricles and circulates around the brain and spinal cord in the subarachnoid space (located between the arachnoid layer and the pia mater, cushions the brain, meningitis. Caused by infections in the meninges (particularly in the pia matter and the arachnoid layer, and the csf between them) Can result in swelling of the brain. Sx include: headaches, cervical rigidity, drowsiness, stupor, coma. Note: there is a difference between meningitis and encephalitis. The latter refers to an infection to the brain itself.
