16_ActiveLecturePRS

16_ActiveLecturePRS - How many motor neurons are required...

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How many motor neurons are required to conduct an action potential from the spinal cord to smooth muscles in the wall of the intestine? 1. One 2. Two 3. Four 4. Six
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What physiological changes occur in someone who is confronted by a large, vicious, growling dog? 1. Decrease in metabolic rate and heart rate 2. Decrease in mental alertness and dilation of respiratory passageways 3. Increase in heart rate and blood pressure 4. Increased action of salivary and digestive glands
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On the basis of anatomy, how do you distinguish the sympathetic division from the parasympathetic division of the ANS? 1. Origin of preganglionic fibers 2. Number of preganglionic fibers 3. Location of PNS ganglia 4. Both 1 and 3 are correct
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Which of these statements does not describe the parasympathetic division of the ANS? 1. It is also called the craniosacral division. 2. Preganglionic fibers originate in the brain stem. 3. Preganglionic fibers are short. 4. Postganglionic fibers synapse in ganglia close to or in target organs.
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Where do the nerves that synapse in collateral ganglia originate ? 1. Lateral gray horns of the spinal cord between spinal segments T 5 and L 2 2. Anterior gray horns of the spinal cord between spinal segments T 1 and L 2 3. Dorsal gray horns of the spinal cord 4. In the brainstem and sacral region of the spinal cord
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Which structure contains a modified sympathetic ganglion? 1. Sympathetic chain ganglia 2. Splanchnic nerves 3. Adrenal medulla 4. Collateral ganglia
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How is the adrenal medulla able to affect target cells throughout the body? 1.
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16_ActiveLecturePRS - How many motor neurons are required...

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