The Nervous System 2The Nervous System 2
The Central Nervous SystemBrain
Spinal Cord
Dr. AlmasiAutumn 1388
BrainBrain
• Forebrain (CerebralForebrain (Cerebral Hemisphere)
• Midbrain (part of the (pBrain stem)
• Hindbrain (Cerebellum, (pons, medulla)
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Functions of the cerebrumFunctions of the cerebrum
• Mental activities involved in memory,Mental activities involved in memory, intelligence, sense of responsibility, thinking, reasoning, moral sense and learning are g gattributed to the higher centers
• Sensory perception, including the perception of y p p g p ppain, temprature, touch, sight, hearing, taste and smell
• Initiation and control of voluntary muscle contraction
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Brain StemBrain Stem
• MidbrainMidbrain• Pons
M d ll• Medulla
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Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Dr. AlmasiAutumn 1388
Medulla Special Features:Medulla Special Features:
• Pyramid decussationPyramid decussation• Sensory decussation
C di• Cardiac center• Respiratory center• Vasomotor center• Reflex centers of vomiting coughing sneezingReflex centers of vomiting, coughing, sneezing
and swallowing
Dr. AlmasiAutumn 1388