back anatomy Flashcards
1
Q
two groups of intrinsic back muscles
A
- erector spinae
- transversospinalis
2
Q
nerve supply of intrinsic back muscles
A
posterior rami in a segmental nerve pattern
3
Q
muscles that flex the spine
A
- psoas major
- rectus abdominis
4
Q
label this
A
5
Q
where are spinal nerves found in the vertebrae
A
intervertebral foramen
6
Q
label
A
inner bit - nucleus pulposus
outer bit - annulus fibrosus
(intervertebral disc which is for weight bearing and strength, none between C1-C2 and the fused sacrum/coccyx)
7
Q
what do vertebral arteries pass through
A
transverse formaen
8
Q
label
A
9
Q
name these types of vertebral dislocation
A
A - Stage I- flexion sprain
B - Stage II – anterior subluxation, 25% translation
C - Stage III – 50% translation
D - Stage IV – complete dislocation
10
Q
where does spinal cord end
A
L1/L2
