The trunk is the body without the limbs. The skeletal component consists of the ribs and sternum, the spine, and the pelvis. The organs of the cardiovascular and respiratory systems are found in the trunk, and the gastrointestinal and genitourinary tracts are within the abdomino–pelvic cavity. ‘The trunk—abdomen and pelvis’ describes the anatomical features and functions of the gut and abdominal cavity; the liver; the pancreas; the adrenal glands; the kidneys and gonads; the pelvis and perineum; and the male and female genital systems. Common problems such as pelvic organ prolapse, prostatic enlargement, and ectopic tubal pregnancy are also considered.