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Hypothalamus

Hypothalamus. position. Floor of third ventricle (Tuber cinerum and Mamillary bodies). TC. M. M. Tuber cinerum: infundibulum Median Eminence Lat. Eminence Postinfundibular Eminenece. Hypothalamus zones. By fornix and mamillothalamic tract 1- medial zone 2- lateral zone.

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Hypothalamus

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  1. Hypothalamus

  2. position

  3. Floor of third ventricle (Tuber cinerum and Mamillary bodies) TC M M

  4. Tuber cinerum: infundibulum Median Eminence Lat. Eminence Postinfundibular Eminenece

  5. Hypothalamus zones • By fornix and mamillothalamic tract • 1- medial zone • 2- lateral zone

  6. Medial zone • 1- suprachiasmatic region • 2- tuber cinerum region • 3- mamillary region

  7. Lateral zone • 1- Lateral nucleus • 2-Lateral tuberal nuclei

  8. Lateral zone

  9. Functions of hypothalamic nuclei • 1-contol of endocrine glands via pituitary gland

  10. Two ways of control • 1- Tuberoinfundibular tract (related to ant lobe or adenohypophys) • 2- Hypothalamohypophyseal tract( related to post lobe or neurohypophys)

  11. Functions of hypothalamic nuclei • 1-contol of body tempreture

  12. post. nucleus Ant. nucleus

  13. Functions of hypothalamic nuclei • 1-contol of behavior

  14. Functions of hypothalamic nuclei • 1- water balance • Lateral nucleus

  15. Functions of hypothalamic nuclei • 1- circadian cycle • Suprachiasmatic nucleus

  16. Functions of hypothalamic nuclei • 1-Control of autonomic system • Postro-lateral (sympathetic response) • Antro-medial (parasympathetic response)

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