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Structural groups of muscles largely determine functional groups—that is, the structural location of a muscle largely determines its mover function.
Semispinalis capitis, pectineus, & vastus lateralis are unusual suspect muscles, often overlooked by manual therapists, that can cause pain and dysfunction.
The longus colli and longus capitis are deep flexors of the neck that often become locked short and cause neck pain, especially when swallowing.
The sternohyoid is an infrahyoid muscle of the anterior neck that attaches from the sternum inferiorly to the hyoid bone superiorly and may cause neck pain.
Attachments and Actions of the Coccygeus and Levator Ani The coccygeus and levator ani are pelvic floor muscles located between the sacrum and coccyx medially and the pelvic bone laterally (Figure 11). As pelvic floor muscles, they are important toward …
The flexor pollicis longus is a deep muscle of the anterior forearm and hand that flexes the thumb and is often overused with digital devices.
The palmar interossei are intrinsic hand muscles located between metacarpals bones in the palm of the hand. They may be the cause of hand pain.
Sometimes it is an unusual suspect, a less well-known muscle, that is the underlying cause of our client’s pain and dysfunction pattern.