extrinsic muscles

ex·trin·sic mus·cles

muscles that arise outside of, but act on, the structure under consideration. For example, those muscles operating the hand but having fleshy bellies located in the forearm.
References in periodicals archive ?
It innervates skeletal muscle of the levator palpebrae superioris and all of the extrinsic muscles, except the superior oblique and lateral rectus.
The extrinsic muscles have one attachment to the mandible or hyoid bone while the other end inserts within the tongue [2].
Neuro-muscular transmission in the extrinsic muscles of the eye.
Hand Grip Force is a unit force exerted by fingers of hand on any object with its contact interface.1 Anatomically the main players in this pattern of force exertion are flexor digitorum profundus and flexor digitorum superficial is muscles, along with moderate contributions from intrinsic and extrinsic muscles of hand.2 Maximum Hand Grip Force can be achieved through forceful flexion of all hand digits with their maximum ability to exert voluntary force under normal biokinetic conditions.3
Lesser toe deformities are caused by alterations in normal anatomy, which create an imbalance between the intrinsic and extrinsic muscles of the foot.
Extrinsic muscles are commonly used for measuring finger conditions by sEMG sensors [13, 14, 27] because the forearm has enough space to place electrodes for sensing the sEMG signals of superficial muscles.
His PET/CT scan showed a large intensely FDG avid tongue mass arising in the posterior of the tongue within the body of the tongue and extrinsic muscles and extending posterosuperiorly into the region of the lingual tonsils and midline tongue superiorly.
Each eye is held in place by three pairs of taut, elastic muscles (extrinsic muscles) that constantly balance the pull of the others.
The extrinsic muscles are categorized into the three groups passing inside the extensor, flexor, and fibular retinacula that belong to muscles in the anterior, posterior, and lateral regions of leg, respectively.
They use intrinsic muscles of the hand and extrinsic muscles of the forearm to grip a baseball.
Although the calves are the largest muscle group acting on the ankle joint when the foot is pointed, it's the underused intrinsic and extrinsic muscles of the feet that need to be engaged in order to access your full range of motion.
Are the extrinsic muscles of the airbladder in some Siluroidae, and the elastic spring apparatus of others subordinate to the voluntary production of sounds?