Pelvis Flashcards
Which Bones make up the hip bone?
Ilium, Ischium, Pubis
Sacro-illiac Joint between the sarum and ilium
Synovial Joint
What is the triradiate Cartilage?
The triradiate cartilage is composed of three parts, resembling a Y shape. These three parts are the ilium, ischium, and pubis, which are three separate bones that fuse during growth and development.
male vs female pelvis differences:
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Pelvic Inlet:
- Male: heart-shaped and narrower.
- Female: round or oval and wider.
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Pelvic Cavity:
- Male: longer and narrower.
- Female: wider and more spacious to accommodate the uterus and fetal passage during childbirth.
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Subpubic Angle:
- Male: The subpubic angle is more acute, <90 degrees.
- Female: The subpubic angle is wider, usually greater than 90 degrees.
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Pelvic Outlet:
- Male: The male pelvic outlet is narrower.
- Female: wider to facilitate childbirth.
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Coccyx Shape:
- Male: The male coccyx is longer and less mobile.
- Female: shorter and more movable, which can aid during childbirth.
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Sacrum:
- Male: The male sacrum is longer, narrower, and has a more pronounced curvature.
- Female: The female sacrum is wider, shorter, and less curved to provide more space for the pelvic organs.
What are the Ligaments of the Pelvis
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Iliolumbar Ligament
Anterior Sacro-illiac Ligament
Posterior Sacro-iliac Ligament
Inguinal Ligament
Sacrospinous Ligament
Sacrotuberous Ligament
Iliolumbar Ligament
Extending from the transverse process of the fifth lumbar vertebra to the posterior part of the iliac crest, providing support to the lumbosacral joint.
Anterior Sacro-illiac Ligament
Connecting the anterior surface of the sacrum to the ilium, contributing to the stability of the anterior aspect of the sacroiliac joint.
Posterior Sacro-iliac Ligament
Running from the posterior surface of the sacrum to the ilium, reinforcing the posterior aspect of the sacroiliac joint.
Inguinal Ligament
Stretching from the anterior superior iliac spine to the pubic tubercle, forming the base of the inguinal canal and providing support to the structures in the groin.
Sacrospinous Ligament
Extending from the lateral edge of the sacrum to the ischial spine, contributing to the formation of the greater sciatic foramen and supporting pelvic structures.
Sacrotuberous Ligament
Running from the lateral sacrum and coccyx to the ischial tuberosity, forming the inferior border of the greater sciatic foramen and providing support to the pelvic floor.
Which roots are included in the Lumbosacral Plexus?
T12 - L5
S1 - S4
The Obturator nerve
Anterior rami pf L2, L3 and L4
Adductor Longus
Adductor Brevis
Adductor Magnus (Anterior Part)
Gracilis