Compare Dr. Robert Yoo D.O. The following are a few ways you can compare nearby doctors and health care providers to find the right match for your care needs. You may also be interested in trying a new Search.
Extrinsic muscles. Definition. noun. A group of muscles lying superficially on a structure, in contrast to intrinsic muscles, which are located deeply. Supplement.For instance, the extrinsic muscles of the tongue include genioglossus muscle, hyoglossus muscle, styloglossus muscle, and palatoglossus muscle.Since they are extrinsic muscles, they are located on the surface of the tongue, and attach the tongue to other structures.xtrinsic muscles. Definition. noun. A group of muscles lying superficially on a structure, in contrast to intrinsic muscles, which are located deeply. Supplement.
The ulnar-innervated intrinsic muscles can be checked by resisting abduction of the index (first dorsal interosseous muscle) and small fingers (abductor digiti quinti muscle). Adhesions and contractures of the intrinsic and extrinsic extensor muscles can limit flexion of the digits.he intrinsic muscles are volar to the axis of rotation of the MCP joint and dorsal to the axis of the PIP joint. MCP joint hyperextension tightens the intrinsics. Results of this test are compared with those in the contralateral, normal hand.