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Gluteal Region and the Ischio Rectal Fossa - Study Guide Part I

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Posted by lae2 on August 11, 2013 at 15:59:12:

1. The spinal cord ends at the vertebral level of L2(3) whereas the spinal canal continues to the level of S2.
2. The sacrospinous ligament contributes the inferior border of the of the greater sciatic foramen.
3. The sacrotuberous ligament contributes the superior border of the greater sciatic foramen.
4. The gluteus maximus muscle takes origin, in part, from the sacrotuberous ligament.
5. In addition to the iliotibial tract, the gluteus maximus muscle inserts onto the gluteal tuberosity of the femur.
6. The gluteus maximus muscle receives the inferior gluteal artery but not the inferior gluteal nerve.
7. The gluteus maximus muscle receives the superior gluteal artery but not the superior gluteal nerve.
8. When standing with just one lower extremity planted (on one foot), the gluteus medius stabilizes the pelvis to prevent excessive pelvic drop on the supported (swing phase) lower extremity.
9. The quadratus femoris muscle, by virtue of inserting onto the intertrochanteric line, is a medial rotator of the hip joint.
10. The superior and inferior gemelli insert onto the trochanteric fossa by way of the obturator externus tendon.
11. The superior gluteal artery, but not the superior gluteal nerve, enters the gluteus maximus muscle.
12. The pudendal nerve, as it crosses the posterior surface of the ischial spine, is accompanied by the the internal pudendal artery.
13. The posterior cutaneous nerve of the thigh, within the gluteal region is located immediately medial to the tibial portion of the sciatic nerve.
14. The sciatic nerve consists of a peroneal portion that innervates original dorsal musculature and a tibial portion that innervates original ventral musculature.
15. The lateral femoral cutaneous nerve contributes to the L2 and L3 dermatome.
16. The lateral femoral cutaneous nerve, by way of the lumbar plexus, receives contributions from the dorsal rami of spinal nerves L1 and L2.
17. A region of numbness matching the distribution of the lateral femoral nerve indicates compression of the L2 spinal nerve (spend money on an MRI).

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Re: Gluteal Region and the Ischio Rectal Fossa - Study Guide Part I Huffledor and Gryffinpuff 22:17:11 8/12/2013 (1)
- Re: Gluteal Region and the Ischio Rectal Fossa - Study Guide Part I lae2 23:10:08 8/12/2013 (0)
Re: Gluteal Region and the Ischio Rectal Fossa - Study Guide Part I 2345 21:45:10 8/12/2013 (1)
- Re: Gluteal Region and the Ischio Rectal Fossa - Study Guide Part I lae2 23:29:02 8/12/2013 (0)

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Comments:
: 1. The spinal cord ends at the vertebral level of L2(3) whereas the spinal canal continues to the level of S2. : 2. The sacrospinous ligament contributes the inferior border of the of the greater sciatic foramen. : 3. The sacrotuberous ligament contributes the superior border of the greater sciatic foramen. : 4. The gluteus maximus muscle takes origin, in part, from the sacrotuberous ligament. : 5. In addition to the iliotibial tract, the gluteus maximus muscle inserts onto the gluteal tuberosity of the femur. : 6. The gluteus maximus muscle receives the inferior gluteal artery but not the inferior gluteal nerve. : 7. The gluteus maximus muscle receives the superior gluteal artery but not the superior gluteal nerve. : 8. When standing with just one lower extremity planted (on one foot), the gluteus medius stabilizes the pelvis to prevent excessive pelvic drop on the supported (swing phase) lower extremity. : 9. The quadratus femoris muscle, by virtue of inserting onto the intertrochanteric line, is a medial rotator of the hip joint. : 10. The superior and inferior gemelli insert onto the trochanteric fossa by way of the obturator externus tendon. : 11. The superior gluteal artery, but not the superior gluteal nerve, enters the gluteus maximus muscle. : 12. The pudendal nerve, as it crosses the posterior surface of the ischial spine, is accompanied by the the internal pudendal artery. : 13. The posterior cutaneous nerve of the thigh, within the gluteal region is located immediately medial to the tibial portion of the sciatic nerve. : 14. The sciatic nerve consists of a peroneal portion that innervates original dorsal musculature and a tibial portion that innervates original ventral musculature. : 15. The lateral femoral cutaneous nerve contributes to the L2 and L3 dermatome. : 16. The lateral femoral cutaneous nerve, by way of the lumbar plexus, receives contributions from the dorsal rami of spinal nerves L1 and L2. : 17. A region of numbness matching the distribution of the lateral femoral nerve indicates compression of the L2 spinal nerve (spend money on an MRI).

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