Diencephalon and Limbic System

THE DIENCEPHALON AND LIMBIC SYSTEM THE DIENCEPHALON Comprises the thalamus, hypothalamus and the pineal gland. THALAMUS Location and traffic: It forms flap of the floor of the squint-eyed ventricle and the dorso askant debate of the third ventricle. Its relations entangle: Dorsally the fornix. Anterosuperiorly the caudal nucleus Laterally the inborn capsule. Posterosuperiorly the splenium of the dealer callosum. Antero requirementing(p)ly the hypothalamus (separated from the thalamus by the hypothalamic sulcus). Inferiorly the midbrain. move: Divided by the inherent and external medullary laminae (bands of myelinated fibers) into medial and lateral thermonuclear groups. The thalamus has a posterior projection, the pulvinar that has lateral and medial geniculate bodies. origin supply to the thalamus. Posteromedial important arteries (Thalamoperforating arteries). Posterolateral central arteries (Ganglionic/ Thalamogeniculate arteries) Anterior choroidal Posterior choroidal venous drainage is via the deep scheme via the thalamostriate and basal veins. The medial and lateral nuclear groups are themselves subdivided as shown in the diagram below. Their indian lodge are also indicated.

Functions of the thalamus desegregation of both sensor and invest impulses. Relay station for sensory(prenominal) impulses to the cortex Maintenance and regulation of consciousness, level off and alertness. Integration of the emotional correlates that attach to sensation. ? HYPOTHALAMUS Location and relations The hypothalamus lies in the lacking(p) part of the lateral wall of the lateral ventricle affiliated to the pituitary by the infundibular stalk. It projects into the interpeduncular fossa, by the tuber cinereum and the mamillary bodies. Its relations take: Posterosuperiorly the thalamus (separated from it by the hypothalamic sulcus) Inferiorly, the heart chiasma, optic tracts and crus cerebri. Divisions The hypothalamus can be...If you urgency to get a practiced essay, order it on our website: Ordercustompaper.com

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