Brainstem & Cerebellum

Question 1

What are the dorsal pathways?

Answer 1

All Ascending Sensory Tracts

Question 2

What are the ascending sensory tracts?

Answer 2

1. Dorsal Columns
2. Lateral Spinothalamic Tract
3. Anterior Spinothalamic Tract
4. Posterior Spinocerebellar Tract
5. Anterior Spinocerebellar Tract
6. Cuneocerebellar Tract
7. Rostral Spinocerebellar Tract

Question 3

Which of the Ascending Sensory Tracts are conscious?

Answer 3

1. Dorsal Columns
2. Lateral Spinothalamic Tract
3. Anterior Spinothalamic Tract

Question 4

Which of the Ascending Sensory Tracts are unconscious?

Answer 4

1. Posterior Spinocerebellar Tract
2. Anterior Spinocerebellar Tract
3. Cuneocerebellar Tract
4. Rostral Spinocerebellar Tract

Question 5

Which of the Ascending Sensory Tracts originate in the dorsal horn?

Answer 5

1. Lateral Spinothalamic Tract
2. Anterior Spinothalamic Tract
3. Anterior Spinocerebellar Tract

Question 6

Where do the Dorsal Columns originate?

Answer 6

N. Gracilis & N. Cuneatus

Question 7

Where does the Posterior Spinocerebellar Tract originate?

Answer 7

Clark’s column in dorsal horn levels T6 and BELOW.

Question 8

Where does the Cuneocerebellar Tract originate?

Answer 8

N. Cuneatus T6 and ABOVE.

Question 9

Where does the Rostral Spinocerebellar Tract originate?

Answer 9

Ventrolateral gray at cervical levels.

Question 10

Which Ascending Sensory Tracts have NO decussation?

Answer 10

1. Posterior Spinocerebellar Tract
2. Cuneocerebellar Tract
3. Rostral Spinocerebellar Tract

Question 11

Which Ascending Sensory Tracts have decussation?

Answer 11

1. Dorsal Columns
2. Lateral Spinothalamic Tract
3. Anterior Spinothalamic Tract
4. Anterior Spinocerebellar Tract

Question 12

Where do 3 of the 4 Ascending Sensory Tracts have decussation?

Answer 12

At the spinal cord level.

Question 13

Where do the Dorsal Columns have decussation?

Answer 13

Caudal Medulla Level

Question 14

Which Ascending Sensory Tracts have decussation at the spinal cord level?

Answer 14

1. Lateral Spinothalamic Tract
2. Anterior Spinothalamic Tract
3. Anterior Spinocerebellar Tract

Question 15

What are the two destinations of the ascending sensory tracts?

Answer 15

1. Postcentral gyrus.

2. Cerebellum.

Question 16

What Tracts have a destination at the Postcentral gyrus?

Answer 16

The conscious ascending sensory tracts (or the Dorsal Columns, Lateral Spinothalamic Tract and the Anterior Spinothalamic Tract).

Question 17

What Tracts have a destination at the Cerebellum?

Answer 17

The unconscious ascending sensory tracts (or the Posterior Spinocerebellar Tract, Anterior Spinocerebellar Tract, Cuneocerebellar Tract, and Rostral Spinocerebellar Tract).