BIOLOGY 173 Lecture Notes - Lecture 30: Caudate Nucleus, Basal Ganglia, Grey Matter
17 Nov 2016
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Basal nuclei (cerebral nuclei, basal ganglia) deep grey matter: collection of cell bodies (grey) Outside cns: ganglion: caudate nucleus, lentiform nucleus. Function of the basal nuclei: subconscious control of skeletal muscle tone, coordination of motor patterns. Inhibits: cerebral nuclei: disease: parkinson"s causes skeletal muscle tome to go up and cause tremors . To treat they give dopa which is the precursor to dopamine that can cross the blood brain barrier. The brain then converts the dopa to dopamine. Thalamus: structure 2 thalami; joined by intermediate mass. Two masses of grey matter covered by white matter. Contains numerous nuclei (collections of cell bodies) located on each side of the third ventricle: function. Filter and relay sensory information to cerebrum. Contains many nuclei forms ventral floor of third ventricle: function. Regulates sex drive, hunger, thirst, daily rhythms (circadian), regulate autonomic nervous system, endocrine system. Midbrain extends from pons to lower diencephalon: aquaduct of sylvius runs through it, ventral:
