1. Which of the following would result in tetanus? stimulating a muscle fiber to
ID: 221810 • Letter: 1
Question
1. Which of the following would result in tetanus? stimulating a muscle fiber to contract immediately after it has relaxed allowing a muscle fiber to relax for several seconds between twitches stimulating the muscle fiber so frequently that it cannot relax at all All of these choices are correct. stimulating a muscle fiber to contract when it has partially relaxed 2. Striated muscles include: smooth muscle. cardiac muscle. smooth muscle and skeletal muscle. cardiac muscle and skeletal muscle. skeletal muscle. 3. The exoskeleton of insects is composed mainly of what material? hydroxyapatite collagen waxes calcium carbonate chitin 4. ATP hydrolysis allows for what component of skeletal muscle contraction? the reorientation of tropomyosin and troponin calcium levels in the cytoplasm to rise the actin head to bind to tropomyosin the myosin head to bind to actin cocking of the myosin head to its high-energy position 5. Which of the following would NOT be characteristic of the forelimbs of an animal specialized for digging? Limb movements are rapid. Much of the weight is in the foot. Limbs are short for the animal's size. Limbs have large muscle lever distance (r) compared to the distance from the joint to the site where force is exerted (L). All of these choices are correct. 1. Which of the following would result in tetanus? stimulating a muscle fiber to contract immediately after it has relaxed allowing a muscle fiber to relax for several seconds between twitches stimulating the muscle fiber so frequently that it cannot relax at all All of these choices are correct. stimulating a muscle fiber to contract when it has partially relaxedExplanation / Answer
Ans 1 c stimulating the muscle fibre so frequently that it cannot relax at all
The motor nerve that innervates the skeletal muscle generates action potentials at such high rates that motor unit remains maximally stimulated for some time . This results in twitch , and if these twitches overlap it causes tetanic contraction.
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