Descending Motor Pathways: Lateral - Corticobulbar and Rubrospinal Tract

Question 1

Corticobulbar tract is primarily from

Answer 1

Primary and supplementary motor cortex

Question 2

Corticobulbar tract crosses in

Answer 2

medulla to cranial nerve nuclei that control face, neck, tongue, and some eye movements

Question 3

Rubrospinal tract from…which receives its input from the

Answer 3

red nucleus which receives its input from the cortex and cerebellum

Question 4

Rubrospinal tract does what as far as tract shape

Answer 4

cross

Question 5

Rubrospinal tract controls

Answer 5

movements of forearms and hands, but not finger movements