NSCI 1051 Lecture Notes - Lecture 11: Substantia Nigra, Basal Ganglia, Cerebral Cortex

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Superior (located above) is opposite to inferior (located. Dorsal (toward the back, or when regarding the brain, Above) is opposite of ventral (below, or toward the front) Medial (toward the middle) is opposite of lateral (toward. 3 layered structure with cbf between the arachnoid layer and pia mater. White matter= tracts, information being carried from one part of the brain to another. Gray matter= cell bodies and support (information processing) Four ventricles (creates and carries csf to subarachnoid space): 2 lateral ventricle, third ventricle and fourth ventricle. Medulla: abuts spinal cord, respiratory and cardiovascular control. Tectum: superior colliculus - vision inferior colliculus- audition. Tegmentum: red nucleus - limb movements substantia nigra- initiates purposeful movements. Spinal reflexes, such as knee-jerk reflex, occurs with no brain involvement. Law of bell and magendie-helps diagnose spinal-cord damage. Body needs to do opposite things when preparing for action vs recharging. Draws blood away from stomach and to muscles.

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