Flashcards in Lumbar Spinal nerves Deck (10)
How many lumbar spinal nerve does a person normally have?
10 (5 pairs)
T/F: each lumbar spinal nerve is named for the vertebra below the nerve.
False; named for the vertebra above
What does each lumbar nerve root divide into?
anterior and posterior primary rami
What does each posterior primary rami of the lumbar spinal nerves divide into?
medial and lateral branches
Which branches of the posterior primary rami of the lumbar spinal nerves supply the multifidi?
medial branches supply multifidi (M&M)
What do the lateral branches of the posterior primary rami of the lumbar spinal nerves supply?
erector spinae group
T/F: the anterior primary rami of the lumbar spinal nerves contribute to both the lumbar and the sacral plexuses.
True (L4 contributes to both plexuses)
Typically, how many lumbar sympathetic ganglia exist?
Which lumbar spinal nerves will have white rami communicans associated with them?
L1, L2 and sometimes L3