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Pelvis and Perineum Anatomy

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Questions and Answers

What is the pelvic region?

The area of the trunk between the abdomen and lower limb.

What separates the bony true pelvis from the false pelvis?

The pelvic brim at the plane of the pelvic inlet.

What separates the true pelvis from the perineum?

The pelvic diaphragm.

How is the perineum subdivided?

Into an anterior urogenital triangle and a posterior anal triangle. Signup and view all the answers

What encloses the pelvic cavity?

The bony pelvis or pelvic girdle. Signup and view all the answers

What divides the urogenital triangle into two small spaces?

The perineal membrane. Signup and view all the answers

What structures form the bony pelvis or pelvic girdle?

The sacrum, coccyx, and the two hip (coxal) bones Signup and view all the answers

What lies below the pelvic brim and is bounded by the muscular pelvic floor?

The true pelvis Signup and view all the answers

What does the false pelvis contain?

Cecum, appendix, and loops of the small intestine Signup and view all the answers

What do the ischioanal fossae contain?

Wedge-shaped, fat-filled spaces Signup and view all the answers

What structures form the pelvic outlet?

Coccyx, ischiopubic rami, and inferior border of the pubic symphysis Signup and view all the answers

What occupies a subperitoneal space that is continuous with the retroperitoneum of the abdomen?

Deep pelvic viscera Signup and view all the answers

What lies inferior to the pelvic cavity?

The perineum Signup and view all the answers

What are the features of the hip bone?

Superior and inferior pubic rami Signup and view all the answers

What are the boundaries of the pelvic inlet (pelvic brim)?

Promontory of the sacrum, arcuate line of the ilium, and pectineal line of the pubic bone Signup and view all the answers

What does the urogenital triangle of the perineum contain?

External genital structures and openings for the urethra and vagina (in females) Signup and view all the answers