5th lecture - The Brain Part Two The Brain The Hindbrain...

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Unformatted text preview: The Brain Part Two The Brain: The Hindbrain, Midbrain and Forebrain The HINDBRAIN Medulla, Cerebellum, Pons • Medulla: regulates automatic functioning, circulation, breathing, muscle tone, reflexes (sneezing/salivating). • Can’t survive if destroyed • Pons: regulates sleeping, waking and dreaming • Cerebellum: balance and coordination of movement; analyzes sensory information; may play a role in remembering simple skills, problem solving The MIDBRAIN Reticular formation, tectum, tegmentum • Reticular Formation: modulates muscle reflexes, pain perception; active in states of arousal. Damage to this area may result in comas • Tectum: involved in auditory and visual responses • Tegmentum: controls some motor functions, regulates awareness and attention and some autonomic functions The FOREBRAIN • Thalamus: relays motor impulses out of the brain; directs incoming sensory messages to higher centers • Hypothalamus: hunger, thirst, emotion, sex and reproduction, body temperature and the autonomic nervous system (the 4 F’s: fighting, fleeing, feeding, mating) • Pituitary Gland: master gland governed by the hypothalamus • Limbic System: loosely interconnected structures involved in emotions. No clear boundaries. •...
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5th lecture - The Brain Part Two The Brain The Hindbrain...

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