IV. Central Nervous System

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IV. Central Nervous System

• A. Brain

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1. Cerebrum

• Largest
• Divided into 2 hemispheres
• Cortex
• Outermost layer
• Most active part of
• brain
• What it does/controls
• Speech, senses,
• voluntary movement
• Memory, reasoning, and intelligence

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2. Cerebellum

1. Back of brain, below cerebrum
2. Muscle control

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Brainstem

• Midbrain
• hearing, sleep/wake, alertness, and temperature
  regulation
• Medulla Oblongata
• Heart rate
• Peristalsis
• Pons
• Breathing
• Dreams

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4. Thalamus

1. Inside cerebrum
2. Senses emotion

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• Hypothalamus
• Blood pressure
• Wakefulness
• Metabolism
• Sex
• Pituitary gland
• Growth
• Sex organ function
• Osmosis