Study Q's for Pelvis and Gluteal Region 3a
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| show | -Sciatic Nerve
-Piriformis muscle belly (fills majority of foramen)
-NV bundle above and below piriformis
Superior Gluteal Nerve
Inferior Gluteal Nerve
-Posterior Femoral Cutaneous nerve
medial to sciatic
-Pudendal NV bundle
medial to PFCN
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| show | 1. Obturator internus
2. Superior gemellus
3. Inferior gemellus
4. Nerves that innervate three muscles
5. Pudendal NV bundle-portion that supplies perineum region
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| show | Sacrum and 2 Os Coxae (innominate bones). Articulations: 2 Sacroiliac (synovial and syndesmotic) and Pubic Symphysis (cartilaginous)
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| show | Relative inferior and anterior. Obturator nerve (L2-L4 AD) runs through defect in superior aspect of obturator membrane.
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| show | Auricular Surface. Synovial. Syndesmotic. (Interosseus SI Ligament-dense, irregular CT)
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| show | Sacrum:Hyaline. Ilium:Fibrocartilage. Due to multidirectional forces.
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| show | Ebaugh: 3rd-5th decade. Pratt: Ankylosed by 6th decade in men and 1/3 women. (degenerative changes in male 4th, female 5th)
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| show | 1-3 degrees or 2-5mm
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| Ventral SI Ligament attachments | show 🗑
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| show | Transverse Process 5th Lumbar Vertebrae=>Medial Aspect of Illium
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| Which two ligaments help resist nutation of the sacrum? What are their attachments? | show 🗑
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| show | Superior pubic ligament (superiorly) and the Arcuate ligament (inferiorly)
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| Decribe the bony landmarks of the pelvic inlet | show 🗑
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| Transverse plane that separates abdominal & pelvic cavity | show 🗑
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| show | Roof:pelvic inlet Anterior Wall:pubic bone Lateral Wall: pubic bone, illium, ischium Posterior Wall: sacrum Floor: Pelvic diaphragm (coccygeus and levator ani)
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| What is the main functional significance of the “pelvic diaphragm” or pelvic floor? | show 🗑
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| show | 85% ~14% ~1%
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| show | Ligaments are responsible for turning foramen into notches. Sacrotuberous ligament closes the notches off posteriorly while sacrospinous ligament divides foramen into greater and lesser portions.
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| What is a “pectineal line”? Discuss on what bones they can be found on and describe their significance? | show 🗑
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| show | Marked by arcuate line. Line leads directly to heavy superior aspect of acetabulum, which is major weight bearing portion of socket.
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Created by:
Phillypino
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