| muscular part of interventricular septum of heart | The thick muscular portion which comprises most of the interventricular septum of the heart. Synonym: pars muscularis septi interventricularis cordis, septum musculare ventriculorum. (05 Mar 2000) |
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| muscular process of arytenoid cartilage | The blunt lateral projection of the arytenoid cartilage giving attachment to the lateral and posterior cricoarytenoid muscles of the larynx. Synonym: processus muscularis cartilaginis arytenoidei. (05 Mar 2000) |
| muscular pulley | A fibrous loop through which the tendon of a muscle passes; the intermediate tendon of the digastric and omohyoid muscles pass through such a trochlea. Synonym: trochlea muscularis. (05 Mar 2000) |
| muscular reflex | Tonic contraction of the muscles in response to a stretching force, due to stimulation of muscle proprioceptors. Synonym: Liddell-Sherrington reflex, muscular reflex, stretch reflex. (05 Mar 2000) |
| muscular rheumatism | <pathology> A disorder characterised by muscle pain, stiffness and easy fatigability. The cause is unknown and an estimated 3 million Americans are affected. (27 Sep 1997) |
| muscular sense | The sensation felt in muscle when it is contracting; awareness of movement or activity in muscles or joints; sense of position or movement mediated in large part by the posterior columns and medial lemniscus. See: bathyesthesia. Synonym: deep sensibility, kinesthetic sense, mesoblastic sensibility, muscular sense, myoesthesis, myoesthesia. Origin: G. Mys, muscle, + aisthesis, sensation (05 Mar 2000) |
| muscular subaortic stenosis | <cardiology> A congenital heart disease that results in abnormal thickening of the ventricular septum and left ventricular wall. Enlargement of the ventricular septum can result in ventricular outflow obstruction (subaortic stenosis) and eventual cardiomyopathy. (27 Sep 1997) |
| muscular substance of prostate | The smooth muscle in the stroma of the prostate. Synonym: substantia muscularis prostatae, musculus prostaticus. (05 Mar 2000) |
| muscular system | All the muscles of the body collectively. (05 Mar 2000) |
| muscular tissue | A tissue characterised by the ability to contract upon stimulation; its three varieties are skeletal, cardiac, and smooth. See: muscle. Synonym: flesh. (05 Mar 2000) |
| muscular triangle | The triangle bounded by the sternocleidomastoid muscle, the superior belly of the omohyoid muscle, and the anterior midline of the neck; the infrahyoid muscles occupy most of it. Synonym: trigonum musculare, trigonum omotracheale, inferior carotid triangle, omotracheal triangle, tracheal triangle. (05 Mar 2000) |
| muscular trophoneurosis | A serious neurologic disease that results from the progressive degeneration of the motor neurons. (27 Sep 1997) |
| muscular tunic of gallbladder | Muscular tunic of the gallbladder, consisting of layers of smooth muscle fibres coursing in various directions immediately external to the mucosa of the gallbladder. (05 Mar 2000) |
| muscular tunics | See: muscular coat. (05 Mar 2000) |
| progressive infantile spinal muscular atrophy | Transmitted as autosomal recessive on chromosome 5q. Progressive dysfunction of the anterior horn cells in the spinal cord and brainstem cranial nerves with profound weakness and bulbar dysfunction occurring in the first two years of life. Three groups, based on age of clinical onset, are recognised. Synonym: familial spinal muscular atrophy, Hoffmann's muscular atrophy, infantile muscular atrophy, infantile progressive spinal muscular atrophy, progressive infantile spinal muscular atrophy, Werdnig-Hoffmann disease, Werdnig-Hoffmann muscular atrophy. (05 Mar 2000) |