SCIATIC NERVE
The thickest nerve of the body is?
| A |
Radial |
|
| B |
Median |
|
| C |
Sciatic |
|
| D |
Axillary |
The thickest nerve of the body is?
| A |
Radial |
|
| B |
Median |
|
| C |
Sciatic |
|
| D |
Axillary |
Sciatic nerve (L4–S3) is the largest peripheral nerve in the body.It is the longest and widest single nerve in the human body, going from the top of the leg to the foot on the posterior aspect The sciatic nerve is comprised of the tibial and common peroneal nerve and exits the pelvis inferior to the piriformis muscle, between the ischial tuberosity and the greater trochanter of the femur.
Which of the following nerve does not supply muscles of gluteal region?
| A |
Sciatic nerve |
|
| B |
Sup gluteal nerve |
|
| C |
Inf gluteal nerve |
|
| D |
Nerve to obturator internus |
Which of the following nerve does not supply muscles of gluteal region?
| A |
Sciatic nerve |
|
| B |
Sup gluteal nerve |
|
| C |
Inf gluteal nerve |
|
| D |
Nerve to obturator internus |
Sciatic nerve (L4–S3) is the largest peripheral nerve in the body. The sciatic nerve is comprised of the tibial and common peroneal nerve and exits the pelvis inferior to the piriformis muscle, and usually gives no branches in the gluteal region.
Nerve supply of adductor magnus is through:
| A |
Tibial part of sciatic nerve |
|
| B |
Obturator nerve |
|
| C |
Both |
|
| D |
None |
Nerve supply of adductor magnus is through:
| A |
Tibial part of sciatic nerve |
|
| B |
Obturator nerve |
|
| C |
Both |
|
| D |
None |
Innervation of adductor magnus
- Posterior division of obturator nerve innervates most of the adductor magnus
- Vertical or hamstring portion innervated by tibial nerve (L2, L3, L4)
Nerve Supply of the Muscle marked as Muscle A in the diagram is
| A |
Tibial part of sciatic nerve |
|
| B |
Obturator nerve |
|
| C |
Both |
|
| D |
None |
Nerve Supply of the Muscle marked as Muscle A in the diagram is
| A |
Tibial part of sciatic nerve |
|
| B |
Obturator nerve |
|
| C |
Both |
|
| D |
None |
Innervation of adductor magnus
- Posterior division of obturator nerve innervates most of the adductor magnus
- Vertical or hamstring portion innervated by tibial nerve (L2, L3, L4)
Which leaves the pelvis ‑
| A |
Piriformis |
|
| B |
Sciatic nerve |
|
| C |
Superior gluteal vessel |
|
| D |
Inferior gluteal vessel |
Which leaves the pelvis ‑
| A |
Piriformis |
|
| B |
Sciatic nerve |
|
| C |
Superior gluteal vessel |
|
| D |
Inferior gluteal vessel |
- Sciatic nerve leaves the pelvis and runs posteriorly in the thigh.
- In the upper angle of popliteal fossa, sciatic nerve divides into tibial nerve and common peroneal nerve
All nerves pass thorugh greater sciatic notch except ‑
| A |
Superior gluteal nerve |
|
| B |
Inferior gluteal nerve |
|
| C |
Sciatic nerve |
|
| D |
Obturator nerve |
All nerves pass thorugh greater sciatic notch except ‑
| A |
Superior gluteal nerve |
|
| B |
Inferior gluteal nerve |
|
| C |
Sciatic nerve |
|
| D |
Obturator nerve |
Ans. is ‘d’ i.e., Obturator nerve
Which nerve mostly damaged in post dislocation of hip ‑
| A |
Sciatic nerve |
|
| B |
Femoral nerve |
|
| C |
Obturator nerve |
|
| D |
Superior gluteal nerve |
Which nerve mostly damaged in post dislocation of hip ‑
| A |
Sciatic nerve |
|
| B |
Femoral nerve |
|
| C |
Obturator nerve |
|
| D |
Superior gluteal nerve |
Ans. is ‘a’ i.e., Sciatic nerve
