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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Pelvic girdle |
Back (Definition) |
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Pubic symphysis |
Secondary cartilaginous joint |
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Sacroiliac joint |
Diarthrodial synovial joint |
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Pudendal nerve |
Lies on the sacrospinous ligament, medial to the ischial spine. Internal pudendal vessels are more lateral |
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Sacrum |
The ala are crossed by the: 1) Sympathetic trunk 2) Lumbosacral trunk 3) Ilio-lumbar artery 4) Obturator nerve (From medial to lateral) |
Anterior sacroiliac joint is weak and the strength is provided by the posterior sacroiliac ligament |
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Piriformis muscle |
Arises from the anterior surface of the sacrum and exits through greater sciatic foramen The only structures exiting the pelvis above the piriformis are the superior gluteal artery and nerve |
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Pelvic outlet |
Diamond shape AP dimension > transverse |
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Pelvic inlet |
Oval shaped Transverse diameter > AP |
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Structures leaving the pelvic cavity through the greater sciatic foramen below piriformis are |
Sciatic nerve Posterior cutaneous nerve of thigh Nerve to quadratis femoris Inferior gluteal nerve and artery Nerve to obturator internus Pudendal nerve Internal pudendal artery |
The 3 structures that wind around the ischial spine to enter the perineum through the lesser sciatic foramen are:
Nerve to obturator internus Pudendal nerve (most medial) Internal pudendal artery |
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Lesser sciatic foramen |
Only structure to leave the pelvic cavity through the lesser sciatic foramen is the tendon of the obturator internal muscle which inserts into the greater trochanter |
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Sacrotuberous ligament |
Prevents posterior displacement of the sacrum |
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