Where are the cerebellar peduncles located?
Cerebellar peduncles are the structure connecting the cerebellum to the brain stem and the cerebrum.
What are the peduncles of the cerebellum?
A cerebellar peduncle is a nerve tract that permits communication between the cerebellum and the other parts of the central nervous system. Three pairs of cerebellar peduncles conduct this communication. The inferior peduncles bring sensory information about the actual position of body parts such as limbs and joints.
Where is inferior cerebellar peduncle?
The upper part of the posterior district of the medulla oblongata is occupied by the inferior cerebellar peduncle, a thick rope-like strand situated between the lower part of the fourth ventricle and the roots of the glossopharyngeal and vagus nerves.
Where is cerebrum located?
Cerebrum. The cerebrum (front of brain) comprises gray matter (the cerebral cortex) and white matter at its center. The largest part of the brain, the cerebrum initiates and coordinates movement and regulates temperature.
What is the location and function of the cerebellum?
The cerebellum (which is Latin for “little brain”) is a major structure of the hindbrain that is located near the brainstem. This part of the brain is responsible for coordinating voluntary movements. It is also responsible for a number of functions including motor skills such as balance, coordination, and posture.
Where is the Pontomedullary junction located?
The term pontomedullary junction refers to the boundary of the pons and the medulla oblongata where the abducens nerve, the facial nerve and the vestibulocochlear nerve join the hindbrain. The motor nucleus of the seventh nerve is located at the pontomedullary junction.
Where is the Arbor Vitae?
The arbor vitae is located deep in the cerebellum. Situated within the arbor vitae are the deep cerebellar nuclei; the dentate, globose, emboliform and the fastigial nuclei. These four different structures lead to the efferent projections of the cerebellum.
How many peduncles does the cerebellum have?
Cerebellar peduncle. There are six cerebellar peduncles in total, three on each side: Superior cerebellar peduncle is a paired structure of white matter that connects the cerebellum to the midbrain. Middle cerebellar peduncles connect the cerebellum to the pons and are composed entirely of centripetal fibers.
What are the three parts of the cerebral peduncle?
Mainly, the three common areas that give rise to the cerebral peduncles are the cerebral cortex, the spinal cord and the cerebellum. The region includes the tegmentum, crus cerebri and pretectum.
What are the nuclei of the cerebellum?
Nuclei: The cerebellum consists of an outer layer of highly convoluted gray matter (cerebellar cortex) surrounding a highly branched body of white matter known as the arbor vitae (Latin for “tree of life”), which in turn surrounds the 3 pairs of deep cerebellar nuclei embedded in the central cerebellar white matter (corpus medullaris).
What is the middle cerebellar peduncle?
Cerebellar peduncle. Middle cerebellar peduncles connect the cerebellum to the pons and are composed entirely of centripetal fibers. Inferior cerebellar peduncle is a thick rope-like strand that occupies the upper part of the posterior district of the medulla oblongata.