26 Equilibrium and balance require input from the a vestibul

26. Equilibrium and balance require input from the a. vestibular apparatus b. eyes. c. joint, tendon. and muscle receptors d. all of the above 27. The thin muscle cells located within the muscle spindle are called a. extrafusal fibers b. gamma fibers c. intrafusal fibers O. satellite cells 28. The \'knee jerk\' or stretch reflex is due to the activation of the a. Golgi tendon organ b. muscle spindle 29. The cell membrane around muscle is called the a. soma. b. plasma membrane c. mucous membrane. d. sarcolemma. 30. The two principal contractile proteins found in skeletal muscle are a. actin and troponin. b. actin and myosin. c. troponin and tropomyosin. d. myosin and tropomyosin. 31. Calcium is stored in muscle within the a. Golgi organs. b. H zone. c. sarcoplasmic reficulum. d. sarcolemma. 32. Fast-twitch fibers contain a relatively a. large number of mitochondria and low ATPase activity. b. small number of mitochondria and low ATPase activity. c. small number of mitochondria and high ATPase activity. 33. The motor neuron and all the muscle fibers it innervates are called a motor a. size principle b. motor unit. c. motor end plate. d. motor nerve. e. neuro muscular junction

Solution

26.Equilibrium and balance require input from the:
a. vestibular apparatus.
b. eyes.
c. joint, tendon, and muscle receptors.
Ans:d. all of the above.

27.The thin muscle cells located within the muscle spindle are called :Intrafusal fibers

28.The \"knee jerk\" or stretch reflex is due to the activation of the :Muscle spindles

29.The cell membrane around muscle is called the :Sarcolemma

30.The two principal contractile proteins found in skeletal muscle are :Actin and myosin

31.Calcium is stored in muscle within the :Sarcoplasmic reticulum

32.Fast-twitch fibers contain a relatively:small number of mitochondria and high ATPase activity

33.The motor neuron and all the muscle fibers it innervates are called a :motor Unit