Unit 1 review 1.3

Question 1

In the somatic motor pathway what are the two types of neurons

Answer 1

Upper motor neuron

Lower motor neuron

Question 2

The two types of upper motor neurons are _________ and _________

Answer 2

Pyramidal: cell bodies in cortex
Extrapyramidal: cell bodies in brain stem

Question 3

Upper motor neuron pathway: Upon descending from the cortex it passes through the (1)___________, (2)___________, (3)___________, most then cross in the (4)__________ before descending in the spinal cord

Answer 3

(1) Corona radiata
(2) Internal capsule
(3) Crus Cerebri
(4) Pyramids

Question 4

Upper motor neurons descend in the _________ _______ tract

Answer 4

Lateral corticospinal tract

Question 5

Upper motor neurons synapse in the _______ horn of the gray matter, and primarily in Rexed lamina _____

Answer 5

Anterior horn

Rexed lamina 7

Question 6

The lower motor neuron extends into the ________ nervous system

Answer 6

Peripheral nervous system