hypothalamus position floor of third ventricle (tuber cinerum and mamillary bodies) mm tc
Post on 15-Jan-2016
219 views
TRANSCRIPT
HypothalamusHypothalamus
position
Floor of third ventricle(Tuber cinerum andMamillary bodies)
M M
TC
Tuber cinerum:infundibulumMedian EminenceLat. EminencePostinfundibular Eminenece
Hypothalamus zones
By fornix and mamillothalamic tract
1- medial zone 2- lateral zone
Medial zone
1- suprachiasmatic region 2- tuber cinerum region 3- mamillary region
Lateral zone
1- Lateral nucleus 2-Lateral tuberal nuclei
Lateral zone
Functions of hypothalamic nuclei
1-contol of endocrine glands via pituitary gland
Two ways of control
1- Tuberoinfundibular tract (related to ant lobe or adenohypophys)
2- Hypothalamohypophyseal tract( related to post lobe or neurohypophys)
Functions of hypothalamic nuclei
1-contol of body tempreture
Ant. nucleus
post. nucleus
Functions of hypothalamic nuclei
1-contol of behavior
Functions of hypothalamic nuclei
1- water balance Lateral nucleus
Functions of hypothalamic nuclei
1- circadian cycle Suprachiasmatic nucleus
Functions of hypothalamic nuclei
1-Control of autonomic system Postro-lateral (sympathetic response) Antro-medial (parasympathetic response)