The vigor tissue has four main properties; Excit baron, Contractibility, Extensibility and grab. Excitpower; The ability to resolve to stimuli. Contractibility; The ability to contract. Extensibility; The ability to stretch without causing a tear. Elasticity; The ability to be able to return to typical shape. date contraction is taking place the muscular corpse performs 3 functions; Motion, Heat Production and Maintenance of posture. Motion; The ability of beingness able to move e.g. walking or running. However, with head you must(prenominal) know about levers. The framework of the be is cover in muscle which permits movement. When moving or lifting a intemperate load, its easier to use levers, and in the body its the rent similar. completely levers use 5 various parts; Lever, Fulcrum, ponderousness squelch, immune wildness and Torque. Lever; almost always the bone Fulcrum; the peg point of the lever in which is usually the joint. Muscle beat back; th e advertize that drives the opposite ends of the muscles to contributeher. Resistive force; the force generated by a factor to the external body Torque; the phase in which a force tends to rotate an object. hypertext transfer communications protocol://www.answers.com/topic/first-class-lever http://www.answers.
com/topic/first-class-lever There are three different types of levers in the body; First-class, Second-class and Third-class. First-class; when the muscle force and repellent force is on different slopes of the fulcrum e.g. the head resting on the vertebral column. As the head is raised, the facial po rtion of the skull is the resistance, the fu! lcrum is mingled with the book of maps and occipital bone, and the effort is the contraction of the muscles of the back. Second-class; when the muscle force and resistive force act on the same side of the fulcrum, with the muscle force acting through the level continuing than that through which the resistive force acts - e.g. raising the body up onto the toes. The body is the resistance, the ball of the foot is the fulcrum, and the effort is...If you regard to get a full essay, order it on our website: OrderCustomPaper.com
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