A muscle spindle contains mostly a glial cells b

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53. A muscle spindle contains mostly A. glial cellsB.muscle fibersC. fasciclesD. nervesE.nerve cells 54. A nurse pricks your finger to type your blood. You flinch at the pain, pullingyour hand back. This is called the ________________. 55.The quickest reflex arcs involve only two neurons, thus forming __ reflex arcs. 56.The flexor (withdrawal) reflex employs a ____, which maintains a sustained contraction. 57. If a bee sting on the right thigh causes a quick involuntary reaction of the right arm, this would be an example of A.Ipsilateral reflexB.An intersegmental reflexC.A withdrawal reflex
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D.A crossed extensor reflexE.A contralateral reflex 58.The sensitivity of the muscle spindle is maintained by 59.The fibers that carry action potentials to cause skeletal muscle to contract are 60.You go to the movies after a long day and you begin to nod off as soon as the movie starts. Your head starts to lower a little but this reflex causes your head to rise. This is called the_________. 61. The patellar tendon reflex arc, the patellar ligament is stretched, which stretches the quadriceps femoris muscle of the thigh. This reflex will cause the quadriceps femoris to ___________. A. contract and the antagonist muscles, the hamstrings, to relaxB.contract and the hamstrings also to contractC.relax and the hamstrings to contractD. relax and the hamstrings also to relaxE.relax without any effect on the hamstrings 62. reflex where the sensory input and motor output are on opposite sides of thespinal cord is called a(n) __________ reflex arc.
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63. A tendon reflex ____________________. 64. This reflex shows the least synaptic delay 65. Tendon organs are A. chemoreceptors.B.proprioceptors.C.visceral receptors.D. pain receptors.E. nociceptors.
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