Questions and Answers
What is the space bound by the bones of the pelvis called?
Pelvic cavity
What are the contents of the pelvic cavity?
Bladder, genitalia, rectum, lymphatics, blood stuff, nerve stuff
What is the superior boundary of the pelvic cavity called?
Pelvic inlet
The pelvic inlet is outlined by the _______.
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What does the pelvic brim separate?
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What is another name for the pelvic inlet?
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What bones form the pelvic brim?
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What is the lateral border of the pelvic brim?
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What is the posterior border of the pelvic brim?
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What is another name for the pelvic outlet?
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What are the boundaries of the pelvic outlet?
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What forms the anterior border of the pelvic outlet?
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What forms the anterolateral border of the pelvic outlet?
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What forms the posterolateral boundary of the pelvic outlet?
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What forms the posterior boundary of the pelvic outlet?
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The true pelvis is located ______ to the pelvic brim.
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Which of the pelvic outlet boundaries is considered a soft tissue boundary?
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What is another term for the true pelvis?
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The true pelvis is located ___________.
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The true pelvis is inferiorly bounded by _______.
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The true pelvis is bound by what bones?
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What is the singular of Os coxae?
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The location of the pelvic viscera can be found in the False Pelvis.
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By what feature alone would you be able to tell a male pelvis from a female pelvis?
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The ala of the sacrum is part of the lesser pelvis.
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The iliac crest is a false pelvis bony feature.
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The true pelvis is partly formed by the ilium.
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What is the os coxae composed of?
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What are the pelvic viscera structures that are found in the true pelvis?
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What is another name for the false pelvis?
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The False pelvis is located superior to the pelvic inlet (brim).
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What are the boundaries of the false pelvis?
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What is the anterior border of the false pelvis?
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What is the lateral border of the false pelvis?
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What is the posterior border of the false pelvis?
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What are the contents of the false pelvis?
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The superior view of the pelvic brim of the male pelvis is what shape?
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A male subpubic angle will be between how many degrees?
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The angle between which fingers on your hand mimics the male subpubic angle?
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On a male pelvis, the greater sciatic notch is described as...
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Study Notes
Pelvic Cavity Overview
- The pelvic cavity is defined as the space bound by the bones of the pelvis.
- Contents include bladder, genitalia, rectum, lymphatics, blood vessels, and nerves.
Structures and Boundaries
- The superior boundary of the pelvic cavity is known as the pelvic inlet.
- The pelvic inlet is outlined by the pelvic brim and separates the false pelvis from the true pelvis.
- The pelvic brim comprises the anterior border (sacral ala), arcuate lines of the ilium, sacral promontory, pectineal lines, and crest of the pubic bones.
- The lateral border of the pelvic brim is formed by the arcuate lines of the ilium, while the posterior boundary is defined by the sacral promontory.
Pelvic Outlet
- The pelvic outlet, also termed the inferior pelvic aperture, has boundaries consisting of the tip of the coccyx, inferior pubic rami, pubic symphysis, sacrotuberous ligament, and ischial tuberosities.
- The pubic symphysis acts as the anterior border, inferior pubic rami and ischial tuberosities form the anterolateral border, sacrotuberous ligaments are the posterolateral boundary, and the tip of the coccyx serves as the posterior boundary.
True vs. False Pelvis
- The true pelvis is located inferior to the pelvic brim and is defined as the lesser pelvis, also known as pelvis minor.
- It is situated between the pelvic outlet and inlet, with an inferior boundary formed by the pelvic diaphragm.
- True pelvis structures include the os coxae, coccyx, and sacrum; the singular term for os coxae is os coxa.
- The false pelvis, or greater pelvis, is located superior to the pelvic inlet and has boundaries defined by the abdominal wall, iliac fossae, and L5-S1 vertebrae.
Clinical and Biological Differences
- Pelvic viscera present in the true pelvis include bladder, ureters, rectum, pelvic genital organs, lymphatics, and nerves.
- The false pelvis contents are ileum, cecum, sigmoid colon, and appendix.
- Determining male vs. female pelvis is possible by evaluating the subpubic angle; male subpubic angle ranges from 50-60 degrees.
- Male pelvis superior view resembles a heart shape, while the greater sciatic notch is deep and narrow (about 50 degrees).
Key True/False Statements
- False pelvis does not contain pelvic viscera.
- The ala of the sacrum is not part of the lesser pelvis.
- The iliac crest is categorized as a feature of the false pelvis.
- The true pelvis is partly formed by the ilium.
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Description
Test your knowledge about the pelvic cavity with this true/false quiz focusing on its anatomy and contents. This quiz includes key terms and definitions related to the male and female pelvic structures. Perfect for anatomy students seeking to reinforce their understanding of this crucial area of the body.
