The Organization of the Nervous System

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The Organization of the Nervous System
The central and peripheral nervous systems
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2.23 Brain and spinal cord
Hypothalamus

• midbrain
• periaqueductal gray
• ventral tegmental area

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Medial Forebrain Bundle
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Cranial nerves
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• The Peripheral Nervous System
• Somatic nervous system
• Controls the movement of skeletal muscles or
  transmits somatosensory information to the
  central nervous system.
• Autonomic nervous system
• Controls the bodys vegetative functions.
• Sympathetic division
• Controls functions that accompany arousal and
  expenditure of energy.
• Parasympathetic division
• Controls functions that occur during a relaxed
  state.

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• Autonomic Nervous System
• Sympathetic
• Parasympathetic

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Organization of the hypothalamicpituitary axis
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Stages of protein synthesis
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Hormonal signaling is mediated by a variety of
extracellular and intracellular receptors
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Two principal types of receptors
Receptor Ligand