Motor pathways

Question 1

What are the names of the two Lateral pathways?

Answer 1

The cortico-spinal tract and the rubro-spinal tract

Question 2

What are the names of the three Ventro-medial pathways?

Answer 2

The Vestibulospinal tract
The Tectospinal tract
The Reticulapsinal tract

Question 3

Describe the Cortico-spinal tract

Answer 3

1. Spinal cord
2. Medullary pyramid (Medulla)
3. Base of the cerebral peduncle (Midbrain)
4. Thalamus -> Internal capsule -> Motor cortex

Question 4

Describe the Rubro-spinal tract

Answer 4

1. Spinal cord
2. Medulla
3. Right red nucleus (Midbrain)

Question 5

Describe the Vestibulo-spinal tract

Answer 5

1. Spinal cord

2. Vestibular nucleus (medulla)

Question 6

Describe the Tecto-spinal tract

Answer 6

1. Spinal cord
2. Medulla
3. Superior colliculus (midbrain)

Question 7

GPe stands for

Answer 7

External globus pallidus

Question 8

GPi stands for

Answer 8

Internal globus pallidus

Question 9

STN stands for

Answer 9

Subthalamic nucleus

Question 10

SN stands for

Answer 10

Substantia nigra

Question 11

Describe the Reticulo-spinal tract

Answer 11

1. Spinal cord
2. Medullary reticular formation in medulla (one tract ends here)
3. Pontine reticular formation in pons (another tract ends here)

Question 12

Where does the basal ganglia fit in?

Answer 12

Prefrontal cortex -> Basal ganglia

Basal ganglia -> Thalamus and Lateral/Ventromedial pathways

Question 13

Where does the cerebellum fit in?

Answer 13

Sensory cortex -> Pons, Cerebellum

Pons, Cerebellium -> Thalamus, Spinal cord and Superior colliculus + vestibular nuclei