(anatomy) A muscle of the larynx that arises from the posterior surface of the lamina of the cricoid cartilage, inserts into the posterior of the process of the arytenoid cartilage, and widens the opening of the vocal cords.

(anatomy) Either of a pair of muscles which originate from the cricoid and insert on to the arytenoid cartilage, and serve to adduct and abduct the vocal folds.

(anatomy) Either of a pair of small muscles (oblique) or an unpaired muscle (transverse) of the larynx.

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(anatomy) A muscle that arises from the inner surface of the lateral pterygoid plate and from the palatine and maxillary bones, is inserted into the ramus and the gonial angle, cooperates with the masseter and temporalis in elevating the lower jaw, and controls certain lateral and rotary movements of the jaw.

(anatomy) Either of two muscles arising respectively from the lateral and medial surfaces of the lateral pterygoid process which serve to move the mandible forwards and to the side.

(anatomy) A muscle that arises from the greater wing of the sphenoid bone and from the outer surface of the lateral pterygoid plate, is inserted into the condyle of the mandible and the articular disk of the temporomandibular joint, and acts as an antagonist of the masseter, temporalis, and medial pterygoid muscles.

(anatomy) A muscle arising from the transverse processes of the lower six cervical vertebrae, inserting on the upper surface of the first rib, and functioning to bend the neck forward and laterally and to rotate it to the side.

(anatomy) A muscle arising from the transverse processes of the fourth to sixth cervical vertebrae, inserting on the outer surface of the second rib, and functioning to raise the second rib and to bend and slightly rotate the neck.

(anatomy) A flat triangular muscle located above the anterior belly of the digastric muscle, that runs from the mandible to the hyoid bone and is joined at a median raphe to its fellow of the opposite side, forming a large part of the muscular floor of the oral cavity.