Diencephalon and Limbic System

THE DIENCEPHALON AND LIMBIC SYSTEM THE DIENCEPHALON Comprises the thalamus, hypothalamus and the pineal gland. THALAMUS Location and dealing: It forms make up of the floor of the squint-eyed heart ventricle and the dorso asquint ring of the third ventricle. Its relations entangle: Dorsally the fornix. Anterosuperiorly the square-tailed 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 native and external medullary laminae (bands of myelinated fibers) into medial and askant thermonuclear groups. The thalamus has a posterior projection, the pulvinar that has lateral and medial geniculate bodies. blood supply to the thalamus. Posteromedial primal arteries (Thalamoperforating arteries). Posterolateral central arteries (Ganglionic/ Thalamogeniculate arteries) Anterior choroidal Posterior choroidal venous drainage is via the deep trunk via the thalamostriate and basal veins. The medial and lateral nuclear groups are themselves subdivided as shown in the diagram below. Their ordination are also indicated.

Functions of the thalamus integration of both sensor and acquire impulses. Relay station for sensory(prenominal) impulses to the cortex Maintenance and regulation of consciousness, vote out and alertness. Integration of the emotional correlates that comply sensation. ? HYPOTHALAMUS Location and relations The hypothalamus lies in the lowly part of the lateral wall of the lateral ventricle machine-accessible to the pituitary by the infundibular stalk. It projects into the interpeduncular fossa, by the tuber cinereum and the mamillary bodies. Its relations accommodate: Posterosuperiorly the thalamus (separated from it by the hypothalamic sulcus) Inferiorly, the ocular chiasma, optic tracts and crus cerebri. Divisions The hypothalamus can be...If you indirect request to get a estimable essay, order it on our website: Orderessay

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