What is the origin of the transversus abdominis muscle?

The transversus abdominis muscle originates primarily from the iliac crest of the pelvis, the thoracolumbar fascia, and the cartilage of the lower six ribs. Therefore, it is correct to say that the muscle's origin is linked to several structures associated with the pelvis and lower ribs. Understanding the anatomy of the transversus abdominis is vital, as it plays a critical role in core stability and helps support and protect the abdominal organs.

The muscle is situated deep to the internal and external obliques and plays a key role in compressing the abdominal cavity. Recognizing its origin from the pelvis and lumbar spine is essential for comprehending how it functions in conjunction with other abdominal muscles during movement and stabilization.