Lamina terminalis

Lamina terminalis
Median sagittal section of brain of human embryo of three months. (Lamina terminalis labeled at center left.)
Median sagittal section of brain of human embryo of four months. (Lamina terminalis labeled at center right.)
Details
Identifiers
Latin	Lamina terminalis
MeSH	A08.186.211.577.482
NeuroNames	hier-190
TA	A14.1.08.419
FMA	61975
Anatomical terms of neuroanatomy []

The median portion of the wall of the fore-brain vesicle consists of a thin , the lamina terminalis, which stretches from the Interventricular foramen (Foramen of Monro) to the recess at the base of the optic stalk and contains the organum vasculosum of the lamina terminalis, which regulates the osmolarity of the blood. The lamina terminalis is the anterior version of the tuber cinereum, together they form the infundibulum.

The lamina terminalis can be opened via endoscopic neurosurgery in an attempt to create a path that cerebrospinal fluid can flow through when a person suffers from hydrocephalus and when it is not possible to perform an Endoscopic third ventriculostomy, but the effectiveness of this technique is not certain.

This is the rostral end (tip) of the neural tube (embryological central nervous system) in the early weeks of development. Failure of the lamina terminalis to close properly at this stage of development will result in anencephaly or meroencephaly.

Mesal aspect of a brain sectioned in the median sagittal plane.

The hypophysis cerebri in position. Shown in sagittal section.

Cerebrum. Inferior view.Deep dissection

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)