Muscular

(musf-ku-lar) \jmtscuhts, muscle]. to be seen, the space between the in termed i- I. Pertaining to or affecting muscles. 2. ate and transverse discs — the lateral disc — Having well-developed muscles. M. Rheulooks homogeneous. The contractile fibrillse matism, rheumatism affecting the muscles. into which the contractile substance is di- M. Sense, the sense of motion, weight, and vided, formed by the end-to-end union of the position upon which the adjustment of the spindles, are aggregated into bundles — the body to its surroundings depends. M. Tis muscle-columns — surrounded by a layer of sue, the ti ue of which muscles are com sarcolemma. On transverse section these posed;it is of two principal varieties — the muscle-columns give rise to the appearance striped, striated, or voluntary, and the unknown as Cohnheim’s fields. The muscle striped, nonstriated, or involuntary musfibers are held together by delicate areolar cular ti ue. The striped muscular ti ue is ti ue, the endomysium. Several grouped composed of muscle-fibers, the unstriped of together form a primary bundle, which is sur elongated, spindle-shaped cells. A muscle rounded bya sheath termed the perimysium. fiber consists of sarcolemma, muscle-nuclei, Fasciculi are aggregations of primary bunand muscle-substance. The sarcolemma is dles, and are the units of which the complete an elastic, homogeneous connective-ti ue muscle is composed, the latter being sur sheath which lightly invests the muscle fiber. rounded by the epimysium. M. Tone. See The nuclei are fusiform in shape, are situated Tone. M. Tumor. See Myoma. immediately beneath the sarcolemma, and run parallel with the axis of the fiber. The Muscular is mucosae (mus-ku-la’ ‘-ris mu-ko’ ’- se). The layer of unstriped muscular ti ue sep muscle-fiber itself consists of two substances — a rating the mucosa (of mucous membranes) a dark, doubly-refracting, or anisotropic con from the submucosa. tractile substance, and a lighter, semifluid, 423