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- Which of the following would result in an injury to a muscle, tendon, ligament or bone? Group of answer choices External forces get too large for the internal forces to handle Compressive forces inside the body go down No relationship to forces Internal forces are able to handle the external forces Must pick one answer onlyWhich of the following best describes rigidity? It affects only antigravity muscles It causes flaccid paralysis It occurs in an upper motor neuron lesion It affects both gravity and antigravity musclesWhich of the following is NOT a function of the muscular system? O Maintains posture and body position O Produces movement of the skeleton by pulling on tendons Circulates blood and nutrients throughout the body Maintains body temperature
- A motor unit is: A group of muscle cells wrapped in perimysium A group of muscles working in unison A group of muscle cells plus the 1 neuron that innervates them A group of sarcomeres contracting in unisonWhich of the following alters the force of skeletal muscle contraction? the frequency of stimulation does NOT alter the force of skeletal muscle contraction alters the force of skeletal muscle contraction the size of the fibers being stimulated does NOT alter the force of skeletal muscle contraction alters the force of skeletal muscle contraction the number of muscle fibers stimulated does NOT alter the force of skeletal muscle contraction alters the force of skeletal muscle contraction the length- tension relationship of the muscle does NOT alter the force of skeletal muscle contraction alters the force of skeletal muscle contractionAdequate level of muscle tone is essential for the accurate performance of voluntary movements, because :-a- it adjusts the α -motor neuron discharge initiating voluntary movementsb- it adjusts posture of proximal joints of the acting limbsc- it adjusts the upright posture of the whole body during voluntary movementsd- it adjusts sensitivity of the spindles of the involved muscles
- A person is walking up a flight of stairs. This movement was accomplished mainly by: Group of answer choices isometric muscle contractions that increase the person’s kinetic energy isometric muscle contractions that perform work on the skeletal system concentric muscle contractions that increase the person’s inertia concentric muscle contractions that increase the person’s potential energyWhich of the following statements are true? Multiple Choice Muscles work in antagonistic pairs because if one muscle shortens during contraction, the opposing muscle across the joint must relax. Muscles work in antagonistic pairs because tendons lengthen during contraction. Muscles work in antagonistic pairs because muscles lengthen during contraction. Muscles work in antagonistic pairs because if one muscle pushes during contraction, the opposing muscle across the joint must pull.Which of the following is NOT true of an eccentric contraction? Contraction produces a greater force than a concentric contraction. Contraction is used as an acceleration activity. Muscle attachments move farther apart. Movement occurs with gravity.
- the muscle that is "mainly" responsible for a movement is called the? the muscle that acts in opposition of the movement is called the? what two terms describe a body temp either above or below normal? the muscular function of maintaining posture is possible due to what type of contraction?Which of the following is not a role of the muscular system inhomeostasis in the body?a. produce movementb. protect body partsc. produce heatd. store calciumWhen a skeletal muscle is stimulated to contract, the force generated by the muscle can damage the tendon connected to the muscle. The sensory receptors in the tendons that are able to inhibit the muscle from generating excessive force are the: O gamma efferents O Golgi tendon organs O musele spindles O proprioceptors
