Review quiz 6 - Lectures 10-11

Review quiz 6 - Lectures 10-11 - Review quiz: Lectures 10...

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Choose the most incorrect answer. 1. Spinal cord reflexes a. Descending neural pathways can modulate stretch and withdrawal reflexes. b. An interneuron is present in the stretch reflex pathway that causes the relaxation of hamstring group muscles. c . Intrafusal fibers send input to γ motor neurons, which allows the muscle spindle to continuously sense muscle length. d. Ia afferents enter in the dorsal horn of the spinal cord and synapse on α motor neurons, which exit out the ventral horn and root of the spinal cord. e. There is one known monosynaptic spinal cord reflex. 2. Spinal cord reflexes a. The Golgi tendon organ is particularly sensitive to muscle tension, but not length. b. Multiple inputs converge on the average spinal cord motor neuron. c. Activation of the Golgi tendon organ causes inhibition of the muscle it is in series with and excitation of the antagonist muscle. d. Inhibitory motor neurons do not exist.
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Review quiz 6 - Lectures 10-11 - Review quiz: Lectures 10...

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