Is the third ventricle a midbrain structure?

The third ventricle is a narrow, funnel-shaped structure that lies in the center of the brain. It lies below the corpus callosum and body of the lateral ventricles, between the two thalami and walls of hypothalamus, and above the pituitary and midbrain (Fig. 28-1).

The third ventricle is a narrow cavity located between the two hemispheres of the diencephalon of the forebrain. The third ventricle is part of a network of linked cavities (cerebral ventricles) in the brain that extend to form the central canal of the spinal cord.

Subsequently, question is, what 3 structures make up the Diencephalon? The diencephalon is made up of four main components: the thalamus, the subthalamus, the hypothalamus, and the epithalamus. The hypothalamus is an integral part of the endocrine system, with the key function of linking the nervous system to the endocrine system via the pituitary gland.

Beside this, which structure of the brain lies on either side of the 3rd ventricle?

The thalamus lies just above the hypothalamic sulcus on the medial surface of the cerebrum. The thalami form a major part of the lateral walls of the third ventricle, and both thalami connect to form the roof of the third ventricle via a band of gray matter known as the interthalamic connexus.

What forms the walls of the third ventricle?

The lateral walls of the third ventricle are formed by the medial aspects of the thalamus and the hypothalamus and its rostral wall is formed by the lamina terminalis.

What is the function of third ventricle?

Third ventricle. The third ventricle is one of the four ventricles in the brain that communicate with one another. 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.

What is the ventricular system of the brain?

The Ventricles of the Brain. The ventricular system is a set of communicating cavities within the brain. These structures are responsible for the production, transport and removal of cerebrospinal fluid, which bathes the central nervous system.

Where is the 4th ventricle in the brain?

The fourth ventricle extends from the cerebral aqueduct (aqueduct of Sylvius) to the obex, and is filled with cerebrospinal fluid (CSF). The fourth ventricle has a characteristic diamond shape in cross-sections of the human brain. It is located within the pons or in the upper part of the medulla oblongata.

What do the lateral ventricles in the brain do?

The right and left lateral ventricles are structures within the brain that contain cerebrospinal fluid, a clear, watery fluid that provides cushioning for the brain while also helping to circulate nutrients and remove waste.

What do enlarged ventricles in the brain mean?

Hydrocephalus is a condition in which there is too much CSF in the ventricles. This occurs when the natural system for draining and absorbing extra CSF does not work right. The slow enlargement of the ventricles means that the fluid pressure in the brain may not be as high as in other types of hydrocephalus.

How many ventricles are in the brain?

four ventricles

How many ventricles are in the brain and what is their function?

The Ventricular System Within the brain there are four ventricles: two lateral (meaning away from the midline of the body), a third ventricle near the center of the brain, and the fourth ventricle under the cerebellum. They are all connected by smaller passageways that allow the CSF to circulate slowly among them.

Where is the lateral ventricle located in the brain?

There are two lateral ventricles—one on each side of the cerebral cortex. The lateral ventricles are continuous with the third ventricle, which is lower in the brain. The third ventricle is continuous with the fourth ventricle, which runs along the brainstem.

What is the largest ventricle in brain?

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

What does the 4th ventricle do?

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 forms the floor of the fourth ventricle?

The floor of the fourth ventricle, also known as rhomboid fossa, is formed by the dorsal surfaces of the pons and medulla oblongata. The cerebral aqueduct is a narrow canal in the midline connecting the third and fourth ventricle.

Which ventricle is located in the midbrain?

The fourth ventricle is the most inferior (lowest) of the four ventricles of the brain. It extends from the aqueduct of the midbrain to the central canal of the upper end of the spinal cord with which it communicates by the two foramina (openings) of Luschka and the foramen (opening) of Magendie.

Where is CSF made?

CSF is produced mainly by a structure called the choroid plexus in the lateral, third and fourth ventricles. CSF flows from the lateral ventricle to the third ventricle through the interventricular foramen (also called the foramen of Monro).

What is the function of white matter?

White matter. White matter is composed of bundles, which connect various gray matter areas (the locations of nerve cell bodies) of the brain to each other, and carry nerve impulses between neurons.