What are the 7 structures of the Diencephalons?

What are the 7 structures of the Diencephalons?

There are several structures between the brainstem and the cerebral cortex that make up the diencephalon. These include the epithalamus, thalamus, subthalamus, metathalamus, hypothalamus, hypophysis cerebri and the third ventricle as its cavity.

What are the 3 parts of diencephalon?

The diencephalon is made up of four main components: the thalamus, the subthalamus, the hypothalamus, and the epithalamus.

What separates the thalamus from the hypothalamus?

The thalamus lies superior to the hypothalamus, separated from it by the hypothalamic sulcus. Medially the third ventricle, superiorly the thalamus and inferiorly the pituitary stalk provide anatomical limits for the hypothalamus; anteriorly, posteriorly and laterally the hypothalamus is without distinct boundaries.

What surrounds the thalamus?

On the superior surface, thalamus is covered by a thin layer of white matter. This layer of white matter is called stratum zonale. a layer of white matter called external medullary lamina.

What is diencephalon and telencephalon?

forebrain, also called prosencephalon, region of the developing vertebrate brain; it includes the telencephalon, which contains the cerebral hemispheres, and, under these, the diencephalon, which contains the thalamus, hypothalamus, epithalamus, and subthalamus.

Is the thalamus in the diencephalon?

The diencephalon connects the midbrain to the forebrain. It is located deep within the brain and comprises the epithalamus, thalamus, subthalamus and hypothalamus.

Is the thalamus anterior to the hypothalamus?

hypothalamus, region of the brain lying below the thalamus and making up the floor of the third cerebral ventricle. The hypothalamus is an integral part of the brain.

Is the hypothalamus anterior or posterior to the thalamus?

The hypothalamus region lies inferior and anterior to the thalamus. It connects to the pituitary gland by the stalk-like infundibulum. The pituitary gland consists of an anterior and posterior lobe, with each lobe secreting different hormones in response to signals from the hypothalamus.

What is thalamus and hypothalamus?

The thalamus is a small structure, located right above the brainstem responsible for relaying sensory information from the sense organs. The hypothalamus is a small and essential part of the brain, located precisely below the thalamus. It is responsible for transmitting motor information for movement and coordination.

Is hypothalamus part of telencephalon?

The inferior boundaries of the telencephalon are found at the diencephalon (e.g. thalamus and hypothalamus) and the brainstem. Posteriorly, it is bordered by the cerebellum.

What are the external and internal lamina of the thalamus?

Anatomy. There are areas of white matter in the thalamus including the stratum zonale that covers the dorsal surface, and the external and internal medullary laminae. The external lamina covers the lateral surface and the internal lamina divides the nuclei into anterior, medial and lateral groups.

What are the areas of white matter in the thalamus?

There are areas of white matter in the thalamus including the stratum zonale that covers the dorsal surface, and the external and internal medullary laminae. The external lamina covers the lateral surface and the internal lamina divides the nuclei into anterior, medial and lateral groups.

What is the orientation of the thalamus in the brain?

The thalamus in a 360° rotation. The thalamus is a paired structure of gray matter located in the forebrain which is superior to the midbrain, near the center of the brain, with nerve fibers projecting out to the cerebral cortex in all directions.

How many nuclei are in the medial segment of the thalamus?

In the medial segment of the thalamus, there are three nuclei. The median nucleus is the most medial of the three structures. The medial dorsal nucleus is superior to the medial nucleus, but both are lateral to the median nucleus and medial to the internal medullary lamina.