Table of Contents
What forms the roof of the third ventricle?
tela choroidea
The second and fourth layers of the roof of the third ventricle are comprised of the superior and inferior layers of the tela choroidea. The superior and inferior layers of the tela choroidea form a space called the velum interpositum, which contains the third, and vascular, layer of the roof of the third ventricle.
What structure borders on the third ventricle?
The third ventricle is bordered anteriorly by the lamina terminalis. Its inferior border is the ventral diencephalon (VDC). Its lateral border is made up of the hypothalamus and other VDC structures (ventrally) and the thalamus (dorsally).
What structure forms the walls of the 3rd ventricle?
The lateral walls of the third ventricle are formed by the walls of the left and right thalamus. The anterior wall is formed by the anterior commissure (white matter nerve fibers), lamina terminalis, and optic chiasma. The posterior wall is formed by the pineal gland and habenular commissures.
What is found in the roof of the third ventricle of the brain?
The third ventricle is the narrow vertical cavity of the diencephalon. A thin tela choroidea supplied by the medial posterior choroidal arteries (branch of posterior cerebral artery) is formed in the roof of the third ventricle. The fornix and the corpus callosum are located superiorly.
What portion of the brain surrounds the third ventricle?
thalamus
Figure 1.17E is a section taken at the level of the junction of the midbrain with the diencephalon. Notice that the plane of section differs from those of the previous sections. At this level, a landmark structure of the diencephalon is the thalamus, which surrounds the third ventricle.
Where does the foramen Luschka go to?
The lateral apertures (of Luschka) (also known as the foramina of Luschka) are two of the foramina in the ventricular system and link the fourth ventricle to the cerebellopontine cistern.
Where is the third ventricle of the brain located quizlet?
Where is the 3rd Ventricle? The 3rd ventricle is located between the corpus callosum and diencephalon. The cerebral aqueduct connects the third and fourth ventricles.
What is the function of foramen of Luschka?
Results: The foramina of Luschka are paired apertures located in the lateral recesses of the fourth ventricle, within the posterior cranial fossa. The foramina of Luschka are of importance clinically as their blockage can disrupt the flow of cerebrospinal fluid leading to the development of hydrocephalus.
What is the function of the third ventricle?
The third ventricle can be described as a cuboid structure that has a roof, floor and four walls (anterior, posterior, and two lateral). Similar to the other brain ventricles, the main function of the third ventricle is to produce, secrete and convey cerebrospinal fluid.
Where are the ventricles located in the brain?
The first and second ventricles are lateral ventricles. These C-shaped structures are located on each side of your cerebral cortex, the wrinkly outer layer of your brain. The third ventricle is a narrow, funnel-shaped structure situated between your right and left thalamus, just above your brain stem.
What is around the third ventricle?
The hypothalamus and thalamus are located on the sides of the third ventricle. Abnormalities of the third ventricle are associated with various conditions including hydrocephalus, meningitis, and ventriculitis.
Which of the following is another name for the third ventricle of the brain?
Hence, the correct answer is ‘Diacoel’