Medically reviewed by Jennifer Steinhoff, MD The transversus abdominis (TA) muscle is the deepest of the abdominal muscles. It extends between the ribs and the pelvis, wrapping around the trunk from ...

Medically reviewed by Amy Kwan, PT Your latissimus dorsi (your "lats") is a broad, flat, triangle-shaped muscle that spans ...

the innermost abdominal muscles that attach to the ribs, pelvis and spine; and the multifidi, an important set of back muscles that run along the spine and are key to spinal stability. When these ...

“In addition to improving your posture, strengthening and lengthening chest muscles helps to support deeper breathing. That’s because the pecs are attached to your ribs, which expand with ...