Lumbar Spinal Nerves

Question 1

How many pairs of lumbar spinal nerves are there?

Answer 1

5 pairs

Question 2

The lumbar spinal nerves are name for the vertebra ____ the nerve.

Answer 2

above

Question 3

Each lumbar nerve divides into a _____ and a ____.

Answer 3

Anterior primary ramus

Posterior primary ramus

Question 4

The spinal cord ends at what level?

Answer 4

L1/L2 level

Question 5

A herniated disc will affect what level? Why?

Answer 5

L4/L5 level

Spinal n. under superior bone

Question 6

The posterior primary rami travel posteriorly and divide into what?

Answer 6

Medial and lateral branches

Question 7

The medial branches of the posterior primary rami supply what?

Answer 7

multifidi

Question 8

The multifidi are most well developed in what area?

Answer 8

Lumbar area

Question 9

The lateral branches of the posterior primary rami supply what?

Answer 9

Erector spine group

Question 10

The anterior primary rami of the lumbar area contribute to which plexus(es)?

Answer 10

Lumbar (L1-L4)

Sacral (L4 and L5)

Question 11

There are usually how many lumbar sympathetic ganglia?

Answer 11

four

Question 12

How do the lumbar nerves communicate with the sympathetic trunk? 3

Answer 12

Sympathetic ganglia
White rami communicans
Gray ram communicans

Question 13

The white rami communicans are associated with which lumbar nerves?

Answer 13

L1, L2, and L3 (sometimes)

Question 14

The gray rami communicans are associated with which lumbar nerves?

Answer 14

Each lumbar nerve (all)