====== THIRD VENTRICLE ====== {{ :maps:third_ventricle.svg |}} | 779 | | Ventriculus tertius | Third ventricle | | | 780 | | Foramen interventriculare | Interventricular foramen | | | 781 | | Organum subfornicale | Subfornical organ | | | 782 | | Taenia thalami | Taenia thalami | | | 783 | | Tela choroidea | Choroid membrane | | | 784 | | Plexus choroideus | Choroid plexus | | | 785 | | Stria medullaris thalami | Stria medullaris thalami | | | 786 | | Recessus suprapinealis | Suprapineal recess | | | 787 | | Commissura habenularum | Habenular commissure | | | 788 | | Recessus pinealis | Pineal recess | | | 789 | | Commissura posterior; commissura epithalamica | Posterior commissure | | | 790 | | Apertura aqueductus mesencephali; apertura aqueductus cerebri | Opening of aqueduct of midbrain; opening of cerebral aqueduct | | | 791 | | Recessus infundibuli; recessus infundibularis | Infundibular recess | | | 792 | | Recessus supraopticus | Supra-optic recess | | | 793 | | Lamina terminalis | Lamina terminalis | | | 794 | | Columna fornicis | Column of fornix | | | 795 | | Commissura anterior | Anterior commissure | | | 796 | | Sulcus hypothalamicus | Hypothalamic sulcus | | | 797 | | Adhesio interthalamica | Interthalamic adhesion; massa intermedia | * third ventricle * communications * through foramen of monro * communicates with lateral ventricle * bounded anterior by foramen of monro * posterioly by tubercle of thalamus * posteroinferiroly in median plane * communicates with 4 ventricle * through cerebral aqueduct * features * median cleft between two thalami * cavity is lined by ependyma * boundaries * anterior wall * lamina terminalis * anterior commisure * anterior columns of fornix * posterior wall * pineal body * posterior commisure * cerebral aqueduct * roof * body of fornix * ependyma linig the undersurface of tela choroidea of third ventricle * floor * optic chiasm * tuber cinerum * infundibulum (pitutary stalk) * mamillary bodies * tegmentum of midbrain * lateral wall * medial surface of thalamus * posterosuperior part * hypothalamus * anteroinferior part