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Brain

Brain. Module 11 and 12. Three Major Divisions. Hindbrain Base of brain Coordinates basic body functions Midbrain Located above hindbrain Very small in humans Coordinates simple movements with sensory information Forebrain Most sophisticated

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Brain

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  1. Brain Module 11 and 12

  2. Three Major Divisions • Hindbrain • Base of brain • Coordinates basic body functions • Midbrain • Located above hindbrain • Very small in humans • Coordinates simple movements with sensory information • Forebrain • Most sophisticated • Allows for complex thoughts and behaviors unique to humans

  3. Hindbrain • Brainstem • Base of brain at top of spinal cord • Functions • Auto survival functions • Sends and receives information • Severe Damage to brainstem results in death

  4. Hindbrain • Cerebellum • Behind the brainstem underneath brain • Means “little brain” – looks like a mini brain attached to the brainstem • Functions • Balance and coordination • Fine motor movements • Procedural memory

  5. Hindbrain • Pons • Above the medulla on the brainstem and below the thalamus • Function • Sleep and arousal • Dreams • Facial expressions

  6. Hindbrain • Medulla (med-you-la) • Below the pons on the brainstem • Functions • Heartbeat, breathing, digestion • Reflexes • Sneezing, coughing, vomiting, swallowing

  7. Midbrain • Reticular Activating System • Network of nerves running vertically through the brainstem to the thalamus • Functions • Arousal to stimuli • Sleep • Attentiveness • Filters and relays info to the thalamus • Damage to this area causes one to go into a coma

  8. Midbrain • Basal Ganglia • Midbrain and forebrain • Functions • Smooth voluntary body movements • Cell damage from to much dopamine – disrupts movement – Parkinson’s disease

  9. Forebrain • Thalamus • 2 connected egg structures located at top of the brainstem • Functions • Sensory info EXCEPT for smell • Ex. Send sound signals to the temporal lobes

  10. Forebrain • Limbic System • Bagel-shaped group of structures between the brainstem and the cerebral cortex • Functions • Learning • Memory • Emotion • Basic drives • 3 Parts • HAH • Hippocampus • Amygdala • Hypothalamus

  11. Limbic System • H – Hippocampus • Processes conscious memories • A – Amygdala • Connected to emotion • H – Hypothalamus • Oversees drinking, eating, and body temp • Rewards center

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