Exam 3: Lumbar Nerves Flashcards Preview

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Flashcards in Exam 3: Lumbar Nerves Deck (9)
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1
Q

___ pairs of lumbar nerves

A

5

2
Q

Each lumbar nerve root divides into

A

Anterior and posterior primary rami

3
Q

Posterior primary rami travel posteriorly and divide into

A

Medial and lateral branches

4
Q

Medial branches of posterior primary rami supply

A

Multifidi

5
Q

Lateral branches of posterior primary rami supply

A

Erector spinae group

6
Q

Anterior primary rami of lumbar nerves contribute to

A

Lumbar (L1-4) plexus

Sacral (L4-5) plexus

7
Q

number of lumbar sympathetic ganglia

A

4

8
Q

White rami communicans associated w/

A

L1
L2
Sometimes L3

9
Q

Gray rami communicans associated w/

A

Each lumbar spinal nerve