HL 2 Biology

E.5a Brain Structure


The Human Brain..

  • medulla oblongata:  automatic & homeostatic activities
    • e.g. breathing, vomiting
  • cerebellum: unconscious activities
    • e.g. posture, balance
  • hypothalamus: maintains homeostasis (nervous & endocrine system)
    • secretes hormones
    • stimulates appetite/thirst, body temp, and sleep
  • pituitary gland: releases hormones
    • release hypothalamic hormones
  • cerebral hemispheres: integrates complex functions
    • e.g. memory, emotion, language
    • many cases of injury here cause difficulty to talk, understand language, or have uncontrollable emotion peaks


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