abdominis is like a corset around your abdomen. It's the muscle you work if you
pull in your stomach.
The multifidus is a group of muscles that lie along your
spine from your neck to your pelvis, with the short fibers connecting one bone
(vertebra) of the spine to other vertebrae near it.
The muscles of
the pelvic floor are most noticeable when you squeeze to keep yourself from
diaphragm is a big, flat muscle inside your rib cage, in between your chest and
your belly. The diaphragm can be thought of as a deep core muscle. It helps
with breathing but also works with the other core muscles to make the trunk
ByHealthwise Staff Primary Medical ReviewerAdam Husney, MD - Family Medicine Specialist Medical ReviewerJoan Rigg, PT, OCS - Physical Therapy
Adam Husney, MD - Family Medicine & Joan Rigg, PT, OCS - Physical Therapy