Unit 2: Somatosensory Pathways To Cerebellum

Question 1

Lower body proprioceptive axons that enter the spinal cord below T6 and travel up the spine in the Ventral Spinocerebellar Tract decussate where?

Answer 1

1. At the segmental level in the spinal cord AND 2. within the medullary center of the cerebellum to the opposite side of cerebellum

Question 2

Upper body proprioceptive axons that enter the spinal cord ABOVE T6 and travel up the spine in the Ventral Spinocerebellar Tract decussate where?

Answer 2

They don’t decussate.

Question 3

Lower body proprioceptive axons that enter the spinal cord below T6 and travel up the spine in the Ventral Spinocerebellar Tract have 3˚ neurons where?

Answer 3

Ipsilateral cerebellum

Question 4

The cuneocerebellar tract is made up of fibers that are projecting from where and to where via what?

Answer 4

From lateral cuneatus nucleus (medulla) going to ipsilateral cerebellum VIA ICP

Question 5

The cerebellum is intimately involve in what?

Answer 5

unconscious control or coordination of skeletal muscles used in maintaining posture, locomotion and other motor activities.

Question 6

Pathways from the lower body that give input to the cerebellum?

Answer 6

• dorsal spinocerebellar tract

- ventral spinocerebellar tract

Question 7

Pathways from the upper body that give input to the cerebellum?

Answer 7

• cuneocerebellar tract