Base Of The Infundibulum Floor 3rd Ventricle

Like other ventricles the third ventricle has a cavity an anterior wall a posterior wall a floor a roof and two lateral walls.

Base of the infundibulum floor 3rd ventricle.

Apart from the hypothalamus the mammillary body infundibulum and the tectum of the midbrain also forms the. Running through the third ventricle is the interthalamic adhesion which contains thalamic. It communicates on either side with the lateral ventricle through the interventricular foramen figs. Around the base of the infundibulum is the median eminence a raised portion of hypothalamic gray matter.

Only tumors with third ventricle involvement i e. Distortion of the pituitary infundibulum can also cause endocrine dysfunction 2. It is a median cavity situated between the right and left thalami fig. The third ventricle the third ventricle is the cavity of the diencephalon.

Contains drawn and explained detailed description of third ventricle of brain. The picture has been simplified by removing the important arteries that surround the base of the brain and run in the major. 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. These portions of the hypothalamus lack a blood brain barrier and typically enhance with gadolinium on mr images.

The median eminence and the tuber cinereum which is also part of the hypothalamus form most of the floor of the third ventricle. 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. Here s the floor of the third ventricle here s the optic chiasm here s the infundibulum leading down to the pituitary gland or hypophysis. All patients who had third ventricle.

The diocoel is the 3rd ventricle that is located in the diencephalon which is made up of the thalamus epithalamus and hypothalamus. 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. Posteriorly it continues into the cerebral aqueduct which connects it to.

Often these lesions extend superiorly invaginating into the third ventricle and obstruct the outflow of the lateral ventricles resulting in obstructive hydrocephalus 1. 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.