Muscles as Active Mobility Tools

Muscles as Active Mobility Tools Muscle consists from cells muscle Which have ability For do contraction. Function main muscle, that is as tool motion active Which caused by ability cells muscle For do contraction muscle. Muscle can contract Because exists something stimulation, that is: 1) excitatory mechanical, like massage, pull, And pressure; 2) excitatory temperature, like cold And hot; 3) excitatory chemistry, like acid-base And salt; 4) excitatory electrical And current electricity; Contraction cells muscle controlled by cells nerve. Muscle can movebone, skin, hair, motion peristaltic channel in, heart, And vessels blood. 1. Types Muscles and Its nature Based on morphology, location, And method it works muscle differentiated become three type, that is muscle striated, muscle plain, And muscle heart. Like Which has You know on chapter discussion about network, in a way anatomy muscle arranged by two type filament base, that is filament actin And filament myosin . Circumstances filament actin thin, whereas myosin thick. Second filament here it is Which become compiler something structure muscle Which called myofibrils . A bunch These myofibrils will form muscle fibers and groups of muscle fibers will form muscle. Pay attention picture 4.18 Which show partsWhich compile muscle! Before We more Far discuss about muscle, We need know How mechanism movement muscle. Muscle Which works as tool motion active, have ability contract And relax. Muscle called currently contract, if muscle the currently shortened or elongated (muscle currently Work), whereas muscle said relax, if muscle That currently rest. By general, muscle own three characteristic in do movement, that is contractibility, extensibility ,And elasticity . Picture 1. Part compiler muscle. Characteristic contractibility possible muscle capable shortened so that more short from size normally. Characteristic contractibility This happen if muscle currently do Work. Muscle said own characteristic extensibility Because muscle capable elongated, so that the size more long from size normally (size beginning), whereas character elasticity, that is ability muscle For return tosize normally. a. Muscle Striated/Muscular Frame Name other For muscle striated is muscle frame, or often also called muscle fiber transverse. Called thereby Because circumstances fibrils muscle This own grooves transverse Which dark called anisotropy , And bright Which called isotropic . Channel dark And bright This arranged in a way interspersed. Cells muscle striated shaped cylindrical And have core Which the amount Enough Lots. Period Rest on muscle striated taking place many times And can contract in a way fast. Muscle striated arranged by bunch fiber Which bandaged by fascia propia . Gathering fiber Which bandaged fascia propia furthermore bandaged Again by something layer wrapping Which called superficial. If We take note muscle own form like coil Which divided become two, that is ventricle And tendon muscle (tendon) . Part muscle Which called ventricle (empal), that is part middle muscle Which bulging, while muscle veins or tendons are the two ends of a muscle shrinking. Tendon muscle or tendons formed from network tie Which nature hard And clay. Based on the attachment on bone, tendons grouped become two, that is origo And insertion. Origin is group tendons Which attached on bone Which No changed his position when muscle contract, whereas insertion is group tendons attached to bones that move when muscles are working (contract). Para athlete bodybuilding And lift heavy Which often train, his muscles will trained so that experience enlargement. Muscles Which experience enlargement the called experience hypertrophy. On the contrary, on person- person Which not enough do motion body his muscles become wrinkled or called with term altrophy . b. Muscle Plain Muscle plain is muscle big Which compile organs part in (muscle visceral). Muscle This called Also muscle involuntary, called thereby Because muscle This Work in outside awareness. Form cells muscle plain like coil fine, with every the cell own One core Which location in middle. Like has said in on that muscle This Work No according to will or order, Because muscle plain his nerves is nerve autonomous. Part big muscle plain can found on organs body part in, for example on wall channel digestion, vessels blood, channel Respiratory, channel birth urinary, And channel sex. c. Muscle Heart If You take note at a glance, muscle heart own similarity structure with muscle striated, but if noticed more thorough, it turns out muscle heart different with muscle striated. Difference Which there is on muscle heart And muscle striated, that is muscle heartfibers his muscles own branching, whereas muscle striated No branching. In side That, system innervation even different. If muscle striated Work in lower influence awareness, whereas muscle heart No Because his nerves is system nerve autonomous. Core cell muscle heart there is in middle.