Randos to Remember

Question 1

All parts of cerebellar cortex receive climbing fiber input and essentially all climbing fibers originate from _____.

Answer 1

cells of the inferior olive

Question 2

Axons from the inferior olive _____ immediately and enter the contralateral inferior cerebellar peduncle.

Answer 2

cross the midline

Question 3

The VA/VL also is the thalamic target for the output from the basal ganglia including the _____ and _____.

Answer 3

caudate and putamen

Question 4

All parts of cerebellar cortex receive ______ input and essentially all climbing fibers originate from cells of the inferior olive.

Answer 4

climbing fiber

Question 5

Name the 3 deep nuclei of the cerebellum.

Answer 5

1. dentate
2. interposed
3. fastigial

Question 6

Axons from the pontine nuclei on one side immediately _____ to enter the middle cerebellar peduncle of the opposite side.

Answer 6

cross the midline

Question 7

Axons from the inferior olive cross the midline immediately and enter the _____.

Answer 7

contralateral inferior cerebellar peduncle

Question 8

The cerebellar cortex sends information only as far as the _____ and the _____.

Answer 8

deep cerebellar nuclei; vestibular nuclei

Question 9

The ______ receives multimodal input and projects to the contralateral cerebellum and the axons of these neurons are the “climbing fiber” input to Purkinje cells.

Answer 9

inferior olivary nucleus (ION)

Question 10

The inferior olivary nucleus (ION) receives multimodal input and projects to the _____ and the axons of these neurons are the “climbing fiber” input to Purkinje cells.

Answer 10

contralateral cerebellum

Question 11

Deep cerebellar nuclei –> superior cerebellar peduncle –> brainstem –> decussate –> ____ and ____

Answer 11

red nucleus and VA/VL

Question 12

Although this is an oversimplification, it helps to remember that the inferior and middle peduncles are the _____ to the cerebellum and the superior peduncle is the ____ from the cerebellum.

Answer 12

• inferior and middle = inputs
• superior = output

Question 13

The inferior olivary nucleus (ION) receives multimodal input and projects to the contralateral cerebellum and the axons of these neurons are the “_____” input to ____.

Answer 13

climbing fiber; Purkinje cells

Question 14

Name 4 places mossy fibers come from.

Answer 14

1. Clarke’s column in the spinal cord
2. Lateral cuneate nucleus in the caudal medulla
3. Vestibular Nuclei
4. Pontine Nuclei

Question 15

Axons from the pontine nuclei on one side immediately cross the midline to enter the ______ of the opposite side.

Answer 15

middle cerebellar peduncle