The Lower Motor Neuron Flashcards Preview

SCT2 Neurology Topic 3 > The Lower Motor Neuron > Flashcards

Flashcards in The Lower Motor Neuron Deck (6)
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1

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

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

2

All voluntary movement relies on ___________.

LMNs

3

LMNs ____________ skeletal muscle fibers.

INNERVATE

4

What are lower motor neurons classified based on?

TYPE OF MUSCLE FIBER THEY INNERVATE

5

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

ALPHA

6

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

GAMMA