What is lenticular nucleus?

What is lenticular nucleus?

also known as the lenticular nucleus, the lentiform nucleus is a term used to refer to a structure that consists of the putamen and globus pallidus. The name lentiform was applied to the structure because of its lens-like shape when viewed from the side.

What are the three main types of thalamic nuclei?

Structure and Function Each side can divide into three groups of thalamic nuclei: a lateral nuclear group, a medial nuclear group, and an anterior nuclear group.

What is the function of lenticular nucleus?

Answer: The lentiform nucleus is comprised of the putamen and globus pallidus of the basal ganglia. As part of the basal ganglia, it carries out complex functions related to movement, cognition, and emotion.

What are the caudate and Lentiform nuclei?

The caudate nucleus bulges into the lateral ventricle and is comprised of a head, body and a tail. The lateral aspect of the lentiform nucleus is referred to as the putamen, and is closely related to the claustrum and the insula. The two medial parts of the lentiform nucleus are referred to as the globus pallidus.

What is the Lentiform nucleus called?

Anatomical terms of neuroanatomy The lentiform nucleus, or lenticular nucleus, comprises the putamen and the globus pallidus within the basal ganglia. With the caudate nucleus, it forms the dorsal striatum. It is a large, lens-shaped mass of gray matter just lateral to the internal capsule.

What is the subthalamic nucleus?

The subthalamic nucleus is a small lens-shaped structure located within the diencephalon near the junction with the midbrain. The subthalamic nucleus composes the majority of the subthalamus along with the subthalamic fasciculus, ansa lenticularis, and several other smaller structures.

Which is an output nucleus nuclei?

The main output nuclei are the substantia nigra pars reticulata (SNr) and the internal globus pallidus/entopeduncular nucleus (not shown). The basal ganglia are a group of interconnected subcortical nuclei that represent one of the brain’s fundamental processing units.

Is the caudate nucleus in the frontal lobe?

The caudate nucleus (CN; plural “caudate nuclei”) is a paired, “C”-shaped subcortical structure which lies deep inside the brain near the thalamus. It plays a critical role in various higher neurological functions. [1][2] Input to the caudate nucleus travels from the cortex, mostly the ipsilateral frontal lobe.

What are called nucleus?

A nucleus is a membrane-bound organelle that contains the cell’s chromosomes. Pores in the nuclear membrane allow for the passage of molecules in and out of the nucleus.

How is the lentiform nucleus related to the thalamus?

The lentiform nucleus is found lateral to the head of the caudate nucleus and thalamus. Anteriorly it is connected to the head of the caudate nucleus by gray matter. The lateral aspect of the lentiform nucleus is referred to as the putamen, and is closely related to the claustrum and the insula.

Where are the lenticular nuclei located in the brain?

The lenticular nucleus is a structure that is part of the basal ganglia, which make up a series of nuclei or masses of gray matter. This structure, as with the rest of the nuclei of the basal ganglia, are found at the base of the brain.

How is the putamen related to the lenticular nucleus?

Finally, the putamen deals with muscle movement in our face and extremities. To carry out these functions, the lenticular nucleus establishes connections with the cerebral cortex and thalamic nuclei. This communication can be bi-directional. This nucleus can be linked to subcortical dementias.

Where are the thalamic nuclei located in the brain?

The details surrounding the connections of the dorsal group of nuclei are uncertain. However, they are believed to communicate with the cingulate gyrus, temporal, parietal and occipital lobes, along with other thalamic nuclei. The ventral anterior and ventral lateral nuclei are believed to be involved in motor cortex activities.