Lecture Exam 3

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Biology

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Question 35. Because of the location of the preganglionic cell bodies, the sympathetic divisions of the ANS is also called the _____ division; the parasympathetic division is also called the ______division Answer: thoracolumbar; craniosacral division Question 36. Organs that receive both sympathetic and parasympathetic motor impulses are said to have Answer: Dual innervation Question 37. Which of the following statements is true? Select all that apply Two correct answers: ● The effect of an autonomic motor neuron is either excitation or inhibition, but the somatic motor neuron is always excitation ● Autonomic motor pathways consist of two motor neurons in a series Question 38. Which of the following statements is false? Answer: The axons of the postganglionic neuron are within the CNS Question 39. Unmyelinated postganglionic axons that connect the ganglia of the sympathetic trunk to spinal nerves form the Answer: gray ramus Question 40. The kinds of peripheral nerves that are responsible for involuntary responses to extreme danger or stress are the Answer: Sympathetic Question 41. A friend of yours is involved in an accident. After the accident you notice that the pupils of his eyes are always constricted and he never sweats even on the hottest days. What is the explanation for his condition? Answer: He damaged the brain stem Question 42. The parasympathetic nervous system affects all of the following EXCEPT Answer: Adrenal medula (adrenal glands) Question 43. Match the following. You will use each answer more than once.

Causes a decrease in heart rate Increased activity of the para… Stimulates urination and defection Increased activity of the para… Prepares body for emergency situation Increased activity of the symp.. Promotes digestion and absorption of food Increased activity of the para… Concerned primarily with processes involving the expenditure of energy Increased activity of the symp.. Question 44. Preganglionic neurons that exit the sympathetic chain without synapsing exit through Answer: splanchnic nerves Question 45. You can still remember all the words to your favorite song from 10 years ago that you used to listen to many times each day. Which of the following can explain this? Answer: It is stored in your long term memory Question 46. The fact that familiar smells can bring about memories and feelings can be explained by the fact that the ____ is a part of the limbic system Answer: Olfactory bulbs

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