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Psychopharmacology
The median eminence is part of the inferior boundary for the hypothalamus part of the human brain . A small swelling on the tuber cinereum posterior to the infundibulum - atop the pituitary stalk - the median eminence lies in the area roughly bounded on its posterolateral region by the cerebral peduncles , and on its anterolateral region by the optic chiasm .
The median eminence is one of the seven areas of the brain devoid of a blood-brain barrier .
Physiology Edit
The median eminence has an important physiological importance, as it is integral to the hypophyseal portal system , which connects the hypothalamus with the anterior lobe of the pituitary gland . It is in this structure that the secretions of the hypothalamus (releasing and inhibiting regulatory hormones) collect before entering the portal system.
Telencephalon (cerebrum, cerebral cortex , cerebral hemispheres ) - edit
primary sulci/fissures : medial longitudinal , lateral , central , parietoöccipital , calcarine , cingulate
frontal lobe : precentral gyrus (primary motor cortex , 4 ), precentral sulcus , superior frontal gyrus (6 , 8 ), middle frontal gyrus (46 ), inferior frontal gyrus (Broca's area , 44 -pars opercularis , 45 -pars triangularis ), prefrontal cortex (orbitofrontal cortex , 9 , 10 , 11 , 12 , 47 )
parietal lobe : postcentral sulcus , postcentral gyrus (1, 2, 3, 43 ), superior parietal lobule (5 ), inferior parietal lobule (39 -angular gyrus , 40 ), precuneus (7 ), intraparietal sulcus
occipital lobe : primary visual cortex (17), cuneus , lingual gyrus , 18 , 19 (18 and 19 span whole lobe)
temporal lobe : transverse temporal gyrus (41-42-primary auditory cortex ), superior temporal gyrus (38 , 22 -Wernicke's area ), middle temporal gyrus (21 ), inferior temporal gyrus (20 ), fusiform gyrus (36 , 37 )
limbic lobe /fornicate gyrus : cingulate cortex /cingulate gyrus , anterior cingulate (24 , 32 , 33 ), posterior cingulate (23 , 31 ), isthmus (26 , 29 , 30 ), parahippocampal gyrus (piriform cortex , 25 , 27 , 35 ), entorhinal cortex (28 , 34 )
subcortical/insular cortex : rhinencephalon , olfactory bulb , corpus callosum , lateral ventricles , septum pellucidum , ependyma , internal capsule , corona radiata , external capsule
hippocampal formation : dentate gyrus , hippocampus , subiculum
basal ganglia : striatum (caudate nucleus , putamen ), lentiform nucleus (putamen , globus pallidus ), claustrum , extreme capsule , amygdala , nucleus accumbens
Some categorizations are approximations, and some Brodmann areas span gyri.
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Subfornical organ