October 2007 The Interactive Hypothalamus - 1 Dr S. Sanyal Faculty of Neuroscience USAIM Seychelles Peace background

Click on any nucleus to see its location Preoptic nucleus Suprachiasmatic nucleusSuprachiasmatic nucleus Paraventricular nucleusParaventricular nucleus Anterior nucleus Supraoptic nucleus Dorsomedial nucleus Ventromedial nucleus Arcuate nucleus Posterior nucleus Mammillary nucleus All nuclei For each nucleus, two diagrams are given from two different sources. The gross location of nuclei and their relationships are same in both diagrams; there are minor variations in shape of some nuclei. Lateral nucleus is shown in only one diagram.

All hypothalamic nuclei and surrounding structures Corpus callosum Genu Rostrum Body Septum pellucidum Fornix Choroid plexus 3 rd ventricle Monroe foramen Interthalamic adhesion Hypothalamic sulcus Pulvinar Thalamus Pons Midbrain Sylvius aqueduct PN DMN VMN Ant.comm. Lamina terminalis PVN PON AN SCN SON Optic chiasma ArN MN Pituit ary Infundibulum

All hypothalamic nuclei and surrounding structures Fornix Pituitary Midbrain Pons Hypothalamic sulcus Thalamus Occulomotor nerve ? Lateral nucleus ? ? ? ? Optic chiasma Chiasmatic recess of 3 rd ventricle ? ? ? ? Anterior commissure Lamina terminalis ? Infundibular recess of 3 rd ventricle Infundibulum (pituitary stalk) AP

Preoptic nucleus Back to slide 3 Back to slide 4

Suprachiasmatic nucleus Back to slide 4 Back to slide 3

Paraventricular nucleus Back to slide 4 Back to slide 3

Anterior nucleus Back to slide 4 Back to slide 3

Supraoptic nucleus Back to slide 4 Back to slide 3

Dorsomedial nucleus Back to slide 4 Back to slide 3

Ventromedial nucleus Back to slide 4 Back to slide 3

Arcuate nucleus Back to slide 4 Back to slide 3

Posterior nucleus Back to slide 4 Back to slide 3

Mammillary nucleus Back to slide 4 Back to slide 3