Descending Motor Pathways

Question 1

Neurons of the ventral horn of the spinal cord

Answer 1

Myelinated y and a neurons

Question 2

Myelinated a-neuron

Answer 2

Skeletomotor. Directly into muscle fibers. Thick axon, fast conducting

Question 3

Myelinated y-neuron

Answer 3

Fusimotor. Fuse into muscle spindles. Thin axon, slow conducting

Question 4

Interneuron

Answer 4

Transmits impulses between other neurons

Question 5

Pontine means

Answer 5

The pons

Question 6

Action of the Pontine

Answer 6

Faciliatory

Question 7

Action of the Medullary

Answer 7

Inhibitory

Question 8

Rubrospinal Tract Action

Answer 8

Semi-skilled movement, located in the midbrain

Question 9

Tectum

Answer 9

Related to the reflex actions

Question 10

Archi Cerebellum

Answer 10

The oldest region of the brain. Still present in higher animals, just small

Question 11

Paleo Cerebellum

Answer 11

Evolved along with the limbs when animals became tetrapods

Question 12

Neo Cerebellum

Answer 12

Takes up the largest proportion of the cerebellum and it is the newest

Question 13

Another name for the paleo region of the cerebellum

Answer 13

Vermis