Base Of The Infundibulum Floor 3rd Ventricle

It is a median cavity situated between the right and left thalami fig.

Base of the infundibulum floor 3rd ventricle. All patients who had third ventricle. It communicates on either side with the lateral ventricle through the interventricular foramen figs. Distortion of the pituitary infundibulum can also cause endocrine dysfunction 2. Floor and roof the floor is formed by the optic chiasma the tuber cinereum and the infundibulum the mamillary bodies the posterior perforated substance and the tegmentum of the midbrain.

Around the base of the infundibulum is the median eminence a raised portion of hypothalamic gray matter. These portions of the hypothalamus lack a blood brain barrier and typically enhance with gadolinium on mr images. The third ventricle is one of the four connected ventricles of the ventricular system within the mammalian brain it is a slit like cavity formed in the diencephalon between the two thalami in the midline between the right and left lateral ventricles and is filled with cerebrospinal fluid csf. Roof formed by body of fornix and the ependyma lining the under surface of the tela choroidea.

Running through the third ventricle is the interthalamic adhesion which contains thalamic. Apart from the hypothalamus the mammillary body infundibulum and the tectum of the midbrain also forms the. The thalamus is laterally present along the 3rd ventricle. The median eminence and the tuber cinereum which is also part of the hypothalamus form most of the floor of the third ventricle.

Posteriorly it continues into the cerebral aqueduct which connects it to. We discuss here the structures forming the roof floor anterior wall posterior wall lateral wall of third ventricle. Third ventricle floor structures including the pars tuberalis infundibulum and mammillary bodies or those that partially or completely occupied the space of the third ventricle 4 8 according to magnetic resonance imaging mri were studied. The diocoel is the 3rd ventricle that is located in the diencephalon which is made up of the thalamus epithalamus and hypothalamus.

The third ventricle the third ventricle is the cavity of the diencephalon. The picture has been simplified by removing the important arteries that surround the base of the brain and run in the major. The floor of the third ventricle is ormed by optic chiasma the infundibulum and the tubular cinereum. The anterior and posterior parts of the pituitary gland are quite distinct.

Often these lesions extend superiorly invaginating into the third ventricle and obstruct the outflow of the lateral ventricles resulting in obstructive hydrocephalus 1. Like other ventricles the third ventricle has a cavity an anterior wall a posterior wall a floor a roof and two lateral walls. Contains drawn and explained detailed description of third ventricle of brain.