pennate muscle

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pen·nate mus·cle

a muscle with a central tendon toward which the fibers converge on either side like the barbs of a feather.
See: semipennate muscle.
References in periodicals archive ?
A mechanism for increased contractile strength of human pennate muscle in response to strength training: changes in muscle architecture.
The PM is a broad pennate muscle that lies on the anterior aspect of the chest wall with no consistent anatomic description in the literature.
In pennate muscle, changes in muscle size may also depend upon changes in fibre pennation angle which becomes greater (more perpendicular to the tendon) during contraction.