ESS CELL BIO& NEUROSC F16 : QUIZ 6

ESS CELL BIO& NEUROSC F16 : QUIZ 6 - Quiz6 Part1of1...

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Quiz 6 Return to Assessment List Part 1 of 1 ­ 4.0 Points Your doctor is testing your knee­jerk reflex by tapping on the tendon of the quadriceps muscle, activating the myotatic reflex. Put the following statements in the correct order according to what happens first, second and last. A. Activation of the Ia sensory axon, activation of alpha motor neuron, contraction of quadriceps muscle B. Activation of alpha motor neuron, contraction of quadriceps muscle, activation of Ia sensory neuron C. Activation of Ia sensory neuron, contraction of quadriceps muscle, activation of alpha motor neuron D. Activation of alpha motor neuron, activation of Ia sensory neuron, contraction of quadriceps muscle Answer Key: A Loss of _________ neurons in the substantia nigra will result in __________ activity of the globus pallidus and __________ activity of the motor cortex. A. dopamine; decreased ; decreased B. GABA; decreased ; decreased C. GABA; increased decreased D. dopamine ; increased ; increased E. dopamine; increased ; decreased Answer Key: E Question 1 of 10 0.4 Points Question 2 of 10 0.4 Points
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