Descending Pathways

Question 1

Which group of motor tracts are involved with posture and gross movements?

Answer 1

Medial Motor Tracts

Question 2

Which group of motor tracts are involved in fractionated movement and distal upper limb extensor control?

Answer 2

Lateral Motor Tracts

Question 3

Which motor tract is involved in anticipatory postural adjustments?

Answer 3

Reticulospinal Tract

Question 4

Which motor tract facilitates motor neurons to neck, shoulder, and trunk muscles?

Answer 4

Medial Corticospinal Tract

Question 5

Which motor tract facilitates motor neurons to the neck and upper back, arising in a nucleus that receives information about head movement and position?

Answer 5

Medial Vestibulospinal Tract

Question 6

Which motor tract facilitates motor neurons to postural muscles in response to gravity information, working to respond to destabilization and keeping center of mass over base of support?

Answer 6

Lateral Vestibulospinal Tract

Question 7

List the medial motor tracts.

Answer 7

1. Medial corticospinal
2. Reticulospinal
3. Medial Vestibulospinal
4. Lateral Vestibulospinal

Question 8

List the lateral motor tracts.

Answer 8

1. Lateral corticospinal
2. Rubrospinal

Question 9

Which motor tract facilitates motor neurons to distal upper limb muscles?

Answer 9

Rubrospinal Tract

Question 10

Which motor tract is involved in fractionated movement?

Answer 10

Lateral Corticospinal Tract

Question 11

Which motor tract is involved in control of muscles in the head and superficial neck?

Answer 11

Corticobrainstem Tract

Question 12

What tract is indicated by the red arrow?

Answer 12

Lateral Corticospinal Tract

Question 13

What tract is indicated by the red arrow?

Answer 13

Medial Corticospinal Tract

Question 14

What tract is indicated by the red arrow?

Answer 14

Reticulospinal Tract

Question 15

What tract is indicated by the red arrow?

Answer 15

Rubrospinal Tract