The insertion of Transversus Abdominis is at the linea alba and pubis.

• A. Xiphoid Process and Pubis
• B. Inferior Ribs, Xiphoid Process, Linea Alba
• C. Linea Alba
• D. Linea Alba and Pubis

Answer: (D)

The muscles of the abdominal wall often insert where their aponeuroses meet the midline and the pelvic region, allowing them to compress the abdomen and help stabilize the spine. The Transversus Abdominis specifically inserts into two key points: its fibers contribute to the linea alba at the midline and, via the conjoint tendon, attach to the pubic crest (pubis). This combination—midline insertion plus a pubic attachment—lets it effectively tense the abdominal wall from side to side and pull the abdominal contents inward.

Other options include structures that are not insertion sites for this muscle (such as the xiphoid process or the lower ribs). One option mentions only the linea alba, which omits the pubic connection, while another includes structures that the muscle doesn’t insert into. Therefore, the correct pairing is the linea alba and the pubis.