NEUR 2200 Lecture Notes - Lecture 2: Blurred Vision, Dorsolateral Prefrontal Cortex, White Matter
27 Feb 2017
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Document Summary
Central nervous system: brain and spinal cord. Peripheral nervous system: everything else: nerve processes connecting to sensory receptors, muscles, internal organs. Afferent - sensory information coming into the cns (incoming) Efferent - motor information leaving the cns (outgoing) Meninges - layers of protective tissue that encase the brain and spinal cord: dura mater - hard mother, tough outmost layer, arachnoid membrane - like a spider web. Subarachnoid space - lies beneath arachnoid membrane and above pia mater. Includes blood vessels and csf: pia mater - soft mother. Cerebrospinal fluid: clear colourless fluid in the brain and spine, composed of sodium chloride and other salts, occupies space and ventricles, cusions the brain. Subdural hematoma: blood gathers between the dura mater, usually associated with tbi which has caused a tear in cerebral vein, results in increased intracranial pressure, damaging the delicate brain tissue, life threatening. Inflammation of the meninges (particularly the pia mater, arachnoid layer, or.
