Drug and Alcohol Abuse Chapter IV

Drug and Alcohol Abuse Chapter IV - Drug and Alcohol Abuse...

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Drug and Alcohol Abuse Chapter IV
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The Nervous System Gross Anatomy Micro Anatomy Physiology Actions of drugs on the brain
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Gross Anatomy Central Nervous System Brain Cortex Basal Ganglia Midbrain Brainstem Limbic system Spinal cord Somatic nerves
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Cerebral Cortex Outer surface of the brain Two sides of the brain Each has multiple areas that are responsible  for specific tasks Frontal lobes: planning, inhibition of bad behavior Precentral Gyrus (ridge): motor control Postcentral Gyrus: touch sensation Parietal Lobe: body sensation Occipital Lobe: vision Temporal Lobe: hearing, memory
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Basal Ganglia Below the Cerebral Cortex Cannot be seen from the outer surface Maintains proper muscle tone Maintains posture Problems result in rigid muscles and loss of  coordination of muscles Parkinson’s
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Hypothalamus Near the base of the brain Above the pituitary Communication link between the brain and  the hormonal system Involved in: Feeding and drinking Temperature regulation Sexual behavior
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Limbic System Loose association of different areas in the  brain (no well defined anatomic location) Emotion, memory for location, primitive  behaviors
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Midbrain Midbrain, Pons, Medulla Connect the brain and the spinal cord Reflexes, coordination of highly complex  actions Contains nuclei Specialized areas that produce and release  neurotransmitters
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Brainstem Vomiting Center Respiratory Center Involuntary activities essential for life
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Divisions of the Nervous  System Somatic Nervous System Relates to the receiving (touch, sight, smell, 
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Drug and Alcohol Abuse Chapter IV - Drug and Alcohol Abuse...

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