What is Interthalamic adhesion?

The interthalamic adhesion (ITA) is an understudied neuroanatomical structure that forms a bridge of tissue connecting the thalamus of each hemisphere across the midline whose functional significance remains largely unknown.

What does the cerebral aqueduct connect?

The cerebral aqueduct is a narrow channel, 1 to 3 mm in diameter, that connects the third ventricle (the cavity of the diencephalon) with the fourth ventricle (the rhombencephalic cavity).

What is the function of the fourth ventricle in the brain?

The main function of this ventricle is to protect the human brain from trauma (via a cushioning effect) and to help form the central canal, which runs the length of the spinal cord. This ventricle has a roof and a floor.

What is found inside the 3rd ventricle?

As with the other ventricles of the brain, it is filled with cerebrospinal fluid, which helps to protect the brain from injury and transport nutrients and waste. The third ventricle is a narrow cavity that is located between the two halves of the brain.

Where is Interthalamic adhesion located?

The interthalamic adhesion (ITA) or massa intermedia is a small variably present connection between the medial apposing surfaces of the two thalami that passes through the third ventricle. It is not a commissure as once thought as it does not contain neurons; instead, it is composed of glial tissue.

Is Interthalamic adhesion white matter?

a mass of gray matter that extends in most individuals across the midline of the third ventricle of the brain from the medial surfaces of the two halves of the thalamus.

What is Sylvian aqueduct?

The cerebral aqueduct (aqueductus mesencephali, mesencephalic duct, sylvian aqueduct or aqueduct of Sylvius) is a conduit for cerebrospinal fluid (CSF) that connects the third ventricle to the fourth ventricle of the ventricular system of the brain.

What is the other name of cerebral aqueduct?

aka cerebral aqueduct. The aqueduct of Sylvius is a channel that connects the third ventricle with the fourth ventricle and allows cerebrospinal fluid to pass between them.

What is the largest ventricle in the heart?

The left ventricle of your heart is larger and thicker than the right ventricle. This is because it has to pump the blood further around the body, and against higher pressure, compared with the right ventricle.

What is the largest ventricle in the brain?

lateral ventricles
The largest of these spaces are the lateral ventricles (one within each of the cerebral hemispheres).

What is the Tela Choroidea of third ventricle?

The tela choroidea of third ventricle is a Thin membrane of pia mater and ependyma in lower part of roof of fourth ventricle. It is attached laterally to the tenia and exhibits lateral and median apertures.

What connects the third and fourth ventricles?

cerebral aqueduct
The cerebral aqueduct connects the third ventricle to the fourth. Within the lateral ventricles, choroid plexus is found in the body, atrium, temporal horn and interventricular foramen. Notice that the cerebral aqueduct is located immediately anterior to the midbrain tectum.

Is the interthalamic adhesion a commissure as once thought?

It is not a commissure as once thought as it does not contain neurones; instead, it is composed of glial tissue. Its functional significance is currently unknown 5.

Where is the interthalamic adhesion located in the thalamus?

The interthalamic adhesion (also known as the intermediate mass or middle commissure) is a flattened band of tissue that connects both parts of the thalamus at their medial surfaces. The medial surfaces form the upper part of the lateral wall to the third ventricle. In mammals other than humans, it is a large structure.

Who is most likely to lack interthalamic adhesion?

In 1889, a Portuguese anatomist by the name of Macedo examined 215 brains, showing that male humans are approximately twice as likely to lack an interthalamic adhesion as are female humans. He also reported its absence, still reported today in about 20% of humans. Its absence is seen to be of no consequence.