Sagittal Section Of The Brain Thalamus Hypothalamus Optic Chasm

Sagittal Section Of The Brain Thalamus Hypothalamus Optic Chasm Figure 18.2. regions of the diencephalon and brainstem in a midsagittal section. the thalamus, hypothalamus, and mammillary bodies are part of the diencephalon. the optic tracts leave the diencephalon, cross at the optic chiasm, and continue as the optic nerves out to the retina. The optic chiasm, or optic chiasma, is the part of the brain where the optic nerves cross and is therefore of primary importance to the visual pathway. it is located at the base of the brain inferior to the hypothalamus, and approximately 10 mm superior to the pituitary gland within the suprasellar cistern. it has important anatomical relationships with the third ventricle, forming part of its.

Sagital Section Of The Human Brain With Regions And Labels Stock Photo The diencephalon is a phylogenetically older part of the brain lying between the telencephalon and the brainstem. it is composed of the thalamus, the hypothalamus, the subthalamus and the epithalamus. the thalamus is a large mass of grey matter with symmetrical halves located on each side of the third ventricle. the thalamus has several. On a mid sagittal section through the brain, the central part of the brain is occupied by the diencephalon (i.e., the thalamus and hypothalamus) that surrounds the third ventricle cavity. the hypothalamus (a small brain structure that plays an important role in homeostasis and hormone regulation) creates the floor and inferolateral walls of the. In neuroanatomy, the optic chiasm, or optic chiasma ( ɒptɪk kaɪæzəm ; from greek χίασμα 'crossing', from ancient greek χιάζω 'to mark with an x '), is the part of the brain where the optic nerves cross. it is located at the bottom of the brain immediately inferior to the hypothalamus. [ 1] the optic chiasm is found in all. The hypothalamus extends from the lamina terminalis (a thin membrane between the anterior commissure and the optic chiasm) anteriorly, to the tegmentum of the midbrain posteriorly. its superior border is marked by the hypothalamic sulcus, a shallow groove which separates it from the thalamus.