| intertransversarii muscles | The paired muscles between transverse processes of adjacent vertebrae; there are anterior and posterior muscles in the cervical region; lateral and medial muscles in the lumbar region; and single muscles in the thoracic region. Synonym: musculi intertransversarii, intertransverse muscles. (05 Mar 2000) |
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| intertransverse muscles | The paired muscles between transverse processes of adjacent vertebrae; there are anterior and posterior muscles in the cervical region; lateral and medial muscles in the lumbar region; and single muscles in the thoracic region. Synonym: musculi intertransversarii, intertransverse muscles. (05 Mar 2000) |
| intrinsic muscles | Muscles fully contained (origin, belly, and insertion) within the structure under consideration. For example, the interossei and lumbrical muscles are intrinsic muscles of the hand. (05 Mar 2000) |
| intrinsic muscles of foot | Muscles fully contained (origin, belly, insertion) in the foot and toes. These muscles are arranged in four layers and all are innervated by the plantar branches of the tibial nerve. Although they may be capable of producing the actions described under their individual entries, as a group the primary function of the intrinsic muscles of the foot is to provide dynamic support of the longitudinal arch of the foot, resisting the forces which act momentarily to spread the arch during walking and running. (05 Mar 2000) |
| involuntary muscles | Muscle's not ordinarily under control of the will; except in the case of the heart, they are smooth (nonstriated) muscle's, innervated by the autonomic nervous system. (05 Mar 2000) |
| ocular muscles | The voluntary muscles which control eye movement (27 Sep 1997) |
| oculomotor muscles | Muscles of the eye that include musculi bulbi (extraocular), musculus orbicularis oculi (eyelids), and musculus orbitalis. These control the eye and surrounding structures. (12 Dec 1998) |
| Oehl's muscles | Strands of muscle fibres in the chordae tendineae of the left atrioventricular valve. (05 Mar 2000) |
| tendon sheath of abductor pollicis longus and extensor pollicis brevis muscles | The synovial sheath lining the compartment of the extensor retinaculum that contains the abductor pollicis longus and extensor pollicis brevis tendons. Synonym: vagina tendinum musculorum abductoris longi et extensoris brevis pollicis. (05 Mar 2000) |
| tendon sheath of extensor carpi radialis muscles | The synovial sheath lining the compartment of the extensor retinaculum containing the tendons of the extensor carpi radialis longus and brevis muscles. Synonym: vagina tendinum musculorum extensorum carpi radialium. (05 Mar 2000) |
| tendon sheath of extensor digitorum and extensor indicis muscles | The synovial sheath that surrounds the four tendons of the extensor digitorum muscle and the tendon of the extensor indicis deep to the extensor retinaculum. Synonym: vagina tendinum musculorum extensoris digitorum et extensoris indicis. (05 Mar 2000) |
| thoracic interspinales muscles | Often poorly developed or absent muscles between spinous process of thoracic vertebrae; action, extends thoracic vertebrae; nerve supply, dorsal primary rami of thoracic nerves. Synonym: musculus interspinalis thoracis, thoracic interspinal muscle. (05 Mar 2000) |
| thoracic intertransversarii muscles | Origin, transverse processes of thoracic vertebrae; insertion, next superior transverse process; action, abducts thoracic vertebrae; nerve supply, dorsal primary rami of thoracic nerves. Synonym: musculi intertransversarii thoracis, thoracic intertransverse muscles. (05 Mar 2000) |
| thoracic intertransverse muscles | Origin, transverse processes of thoracic vertebrae; insertion, next superior transverse process; action, abducts thoracic vertebrae; nerve supply, dorsal primary rami of thoracic nerves. Synonym: musculi intertransversarii thoracis, thoracic intertransverse muscles. (05 Mar 2000) |
| thoracic rotator muscles | The rotators of the thoracic vertebrae. Synonym: musculi rotatores thoracis, thoracic rotator muscles. (05 Mar 2000) |