The Lower Motor Neuron

Question 1

Where are lower motor neuron (LMN) cell bodies found?

Answer 1

IN VENTRAL HORN OF SPINAL CORD
+
CRANIAL NERVE NUCLEI OF BRAINSTEM

Question 2

All voluntary movement relies on ___________.

Answer 2

LMNs

Question 3

LMNs ____________ skeletal muscle fibers.

Answer 3

INNERVATE

Question 4

What are lower motor neurons classified based on?

Answer 4

TYPE OF MUSCLE FIBER THEY INNERVATE

Question 5

Which lower motor neurons innervate extrafusal muscle fibres, the most numerous, involved in contraction?

Answer 5

ALPHA

Question 6

Which lower motor neurons innervate intrafusal muscle fibres, important together with 1a for proprioception?

Answer 6

GAMMA