What is the term for the surface region located between the symphysis pubis and the coccyx?

• A. Perineum
• B. Pelvis
• C. Gluteal region
• D. Hypogastric region

Answer: (A)

Perineum is the surface region that lies between the pubic symphysis and the coccyx. It forms the inferior part of the trunk and is bounded anteriorly by the pubic symphysis, posteriorly by the coccyx, and laterally by the ischiopubic rami and ischial tuberosities. This area is traditionally divided into the urogenital triangle at the front and the anal triangle at the back, and it contains the external genitalia and openings of the urinary and digestive tracts as applicable. The pelvis refers to the bony basin higher up; the gluteal region is the buttock area; the hypogastric region is an abdominal/retroperitoneal term. So the region between the pubic symphysis and coccyx is the perineum.