NCCAOM Sciatica Anatomy and Physiology Quiz

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Question 1 of 10

1. Question
How many cervical vertebrae are there?
- 6
- 7
- 8
- 5
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Question 2 of 10

2. Question
What are the distinguishing features of cervical vertebrae C1 (Axis) and C2 (Atlas)?
- flexion & extension of the head and neck
- C1 and C2 have transverse foramina for the vertebral arteries to pass through and supply blood to the brain
- They both have a nucleus pulposis
- Option 1 & 2
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Question 3 of 10

3. Question
What is the inner-most part of the intervertebral disc called?
- Transverse foramina
- Cartilage
- Nucleus pulposis
- Neural foramina
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Question 4 of 10

4. Question
What makes up each “spinal segment”?
- C1 & C2
- The superior articular facet, transverse foramen, and spinal cord
- The annulus fibrosis surrounding the nucleus pulposis
- Two adjacent vertebrae, the intervertebral disk between them, the two spinal nerves that exit from each side of the spinal cord, ligaments and muscles
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Question 5 of 10

5. Question
The Sciatic nerve innervates the gluteal region – True or False?
- True – Yes the sciatic nerve innervates all of the gluteal region.
- False – Although the sciatic nerve passes through the gluteal region, it does not innervate any muscles there.
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Question 6 of 10

6. Question
What are the motor and sensory functions of the sciatic nerve?
- The sciatic nerve directly innervates the muscles in the posterior compartment of the thigh, and the hamstring portion of the adductor magnus
- The sciatic nerve provides indirect sensory innervation via its "terminal branches", through the tibial nerve and common fibular nerve
- Option 1 & 2
- The sciatic nerve has motor functions but no sensory functions
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Question 7 of 10

7. Question
Where does the sciatic nerve ENTERthe gluteal region?
- Popliteal fossa
- Lumbosacral plexus
- Piriformis muscle
- Greater sciatic foramen
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Question 8 of 10

8. Question
Does the sciatic nerve provide indirect sensory innervation via its terminal branches?
- Yes, via the Common Fibular Nerve and the Tibial Nerve
- The sciatic nerve does not provide any indirect sensory innervation
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Question 9 of 10

9. Question
What does the tibial nerve innervate?
- The muscles of the anterior leg, lateral leg, and the remaining intrinsic foot muscles
- It does not innervate any muscles
- The muscles of the posterior leg (calf muscles), and some of the intrinsic muscles of the foot
- The posterior compartment of the thigh, and the hamstring portion of the adductor magnus
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Question 10 of 10

10. Question
Describe the Lumbosacral Plexus.
- A web of nerves that forms in the lumbar region of the body; the sciatic nerve arrises from the lumbosacral plexus
- Starts in the sacral region of the spine branches throughout the body
- A web of nerves that forms in the gluteal region
- None of the above
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