Exam 4 Study Guide

Exam 4 Study Guide - Exam3StudyGuide Chapter2...

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Exam 3 Study Guide Chapter 2 What is corpus collosum? Central Nervous System: o Divided into two parts: Central Nervous System (CNS) Brain o Cerebrospinal fluid o Covered by the blood brain barrier o Gray matter surrounding white matter o Incoming-sensory nerves o Outgoing-motor nerves Spinal Cord o Incaseed in the hardest bone o Covered by protective membrains o Bundle of fibers that transmit messages o Covered ny three protective membranes called meninges  Peripheral Nervous System (PNS) Nerves that lie utside the brain and spinal cord Hindbrain: Responsible for vital life functions (damage can result in death) o Cerebellum:  Coordination or movement, equilibrium Involved in learning, especially motor learning  o Medulla Oblongata: Basic functions (breathing, heart rate, etc.)   o   Pons Involved in sleep and arousal Midbrain: Responsible for integrating sensory information (e.g. vision and hearing) o Reticular Formation Contributes to modulation of muscle reflexes, breathing, and pain reseptors Sleep, arousal, and attention  o Substantia Nigra (black substance) Involved in movement o Brain Stem Alertness, breathing, heart rate, blood pressure (basic survival functions) Forebrain: Largest and most complex part of the brain o Basal ganglia : fine motor movements o Thalamus : interpretation of sensory information o Hypothalamus : key to motivated behavior and basic biological behavior (things that keep you alive) Limbic System: key in emotion, modivation, learning and memory. Pleasure center of the brain. o Hippocampus : involved with memory
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o Amygdala : fear, anxiety, negative emotion, aggression Cerebral Cortex or The Cerebrum: Largest and most complex part of the brain? o Split into hemispheres o Functions are opposite- left side of brain controls right side of body o Specialized functions o Left side: language, reading, speaking, writing o Right side : visual and special functioning, solving puzzles, and music o Somatosensory cortex o Occipital Lobe Primary visual cortex Damage here can cause cordial blindness o Parietal Lobe Primary somatosensory cortex Memory o Temporal Lobe Primary auditory cortex o Frontal Lobe Primary motor cortex Planning of movement Some memory personality o Wernicke’s area, Broca’s area Peripheral nervous system (PNS)  (including efferent nerves, afferent nerves) o Made up of all the nerves outside the CNS o Made up of two types of nerves o Afferant Nerves: (the on ramp)Take information and send to the CNS o Efferent Nerves: (the off ramp) Take information from the CNS and send outward 
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Exam 4 Study Guide - Exam3StudyGuide Chapter2...

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