SC - Descending (motor) Tract

Question 1

Pyramidal tract - Corticospinal

Answer 1

D: Caudal medulla (aCST)
Spinal cord (lCST)
F: Voluntary, discrete skilled motor activities

Question 2

Extrapyramidal tracts - Reticulospinal

Answer 2

D: x
F: Regulation to voluntary movements and reflexes
Connected to M1

Question 3

Extrapyramidal tracts - Rubrospinal

Answer 3

D: Midbrain - red nucleus
F: Promotion of flexor and inhibition of extensor muscle activity

Question 4

Extrapyramidal tracts - Vestibulospinal

Answer 4

D: x
F: Inhibition of flexor and promotion of extensor muscle activity

Question 5

Extrapyramidal tracts - Tectospinal

Answer 5

D: Midbrain - superior and inferior colliculi
F: Postural movements from visual stimuli and auditory