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How many pairs of spinal nerves are there
31
What is a spinal nerve formed from
Union of anterior root and dorsal root at the intervertebral foramen
Which vertebrae do autonomic fibres pass between
T1 - L2
S2 - S4
2 regions
What do the spinal nerves split into after passing through the intervertebral forament
Anterior ramus
Posterior ramus
2
At what vertebral level are the brachial plexus and lumbo-sacral plexus
Brachial plexus: C5 - T1
Lumbo-sacral plexus: L2 - S3
CT
LS
Spinal nerves of which levels supply:
Neck
Upper limbs
Trunk
Lower limb
Perineum
Neck: C1-C4
Upper limbs: C5 - T1
Trunk: T2 - L1
Lower limbs: L2 - S3
Perineum: S2 - C1
CC
TL
SC
Where does the femoral nerve arise from
L2 - L4 posterior fibres
LL
What does the femoral nerve innervate
Iliopsoas
Anterior compartment of the thigh
I
A
Where does the obturator nerve arise from
L2 - L4 anterior fibres
What does the obturator nerve innervate
Medial compartment of the thigh
1
M
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