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| 1 | |
Given these statements:
1. neuron cell bodies in the nuclei of cranial nerves
2. neuron cell bodies in the lateral gray matter of the spinal cord (S2-S4)
3. two synapses between the CNS and effector organs
4. regulates smooth muscle
Which of the statements are true for the autonomic nervous system? |
| | A) | 1,3 |
| | B) | 2,4 |
| | C) | 1,2,3 |
| | D) | 2,3,4 |
| | E) | 1,2,3,4 |
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| 2 | |
Given these structures:
1. gray ramus communicans
2. white ramus communicans
3. sympathetic chain ganglion
Choose the arrangement that lists the structures in the order an action potential passes through them from a spinal nerve to an effector organ. |
| | A) | 1,2,3 |
| | B) | 1,3,2 |
| | C) | 2,1,3 |
| | D) | 2,3,1 |
| | E) | 3,2,1 |
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| 3 | |
Given these structures:
1. collateral ganglion
2. sympathetic chain ganglion
3. white ramus communicans
4. splanchnic nerve
Choose the arrangement that lists the structures in the order an action potential travels through them on the way from a spinal nerve to an effector organ. |
| | A) | 1,3,2,4 |
| | B) | 1,4,2,3 |
| | C) | 3,1,4,2 |
| | D) | 3,2,4,1 |
| | E) | 4,3,1,2 |
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| 4 | |
The white ramus communicans contains |
| | A) | preganglionic sympathetic fibers. |
| | B) | postganglionic sympathetic fibers. |
| | C) | preganglionic parasympathetic fibers. |
| | D) | postganglionic parasympathetic fibers. |
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| 5 | |
The cell bodies of the postganglionic neurons of the sympathetic division are located in the |
| | A) | sympathetic chain ganglia. |
| | B) | collateral ganglia. |
| | C) | terminal ganglia. |
| | D) | dorsal root ganglia. |
| | E) | both a and b. |
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| 6 | |
Splanchnic nerves |
| | A) | are part of the parasympathetic division. |
| | B) | have preganglionic neurons that synapse in the collateral ganglia. |
| | C) | exit from the cervical region of the spinal cord. |
| | D) | travel from the spinal cord to the sympathetic chain ganglia. |
| | E) | all of the above. |
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| 7 | |
Which of the following statements regarding the adrenal gland is true? |
| | A) | The parasympathetic division stimulates the adrenal gland to release acetylcholine. |
| | B) | The parasympathetic division stimulates the adrenal gland to release epinephrine. |
| | C) | The sympathetic division stimulates the adrenal gland to release acetylcholine. |
| | D) | The sympathetic division stimulates the adrenal gland to release epinephrine. |
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| 8 | |
The parasympathetic division |
| | A) | is also called the craniosacral division. |
| | B) | has preganglionic axons in cranial nerves. |
| | C) | has preganglionic axons in pelvic nerves. |
| | D) | has ganglia near or in the wall of effector organs. |
| | E) | all of the above. |
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| 9 | |
Which of these is not a part of the enteric nervous system? |
| | A) | ANS motor neurons |
| | B) | neurons located only in the digestive tract |
| | C) | sensory neurons |
| | D) | somatic neurons |
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| 10 | |
Sympathetic axons reach organs through all of the following except |
| | A) | abdominopelvic nerve plexuses. |
| | B) | head and neck nerve plexuses. |
| | C) | thoracic nerve plexuses. |
| | D) | pelvic nerves. |
| | E) | spinal nerves. |
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| 11 | |
Which of these cranial nerves does not contain parasympathetic fibers? |
| | A) | oculomotor (III) |
| | B) | facial (VII) |
| | C) | glossopharyngeal (IX) |
| | D) | trigeminal (V) |
| | E) | vagus (X) |
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| 12 | |
Which of the following statements concerning the preganglionic neurons of the ANS is true? |
| | A) | All parasympathetic preganglionic neurons secrete acetylcholine. |
| | B) | Only parasympathetic preganglionic neurons secrete acetylcholine. |
| | C) | All sympathetic preganglionic neurons secrete norepinephrine. |
| | D) | Only sympathetic preganglionic neurons secrete norepinephrine. |
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| 13 | |
A cholinergic neuron |
| | A) | secretes acetylcholine. |
| | B) | has receptors for acetylcholine. |
| | C) | secretes norepinephrine. |
| | D) | has receptors for norepinephrine. |
| | E) | secretes both acetylcholine and norepinephrine. |
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| 14 | |
When acetylcholine binds to nicotinic receptors, |
| | A) | the cell's response is mediated by G proteins. |
| | B) | the response can be excitatory or inhibitory. |
| | C) | Na+ channels open. |
| | D) | it occurs at the effector organ. |
| | E) | all of the above. |
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| 15 | |
Nicotinic receptors are located in |
| | A) | postganglionic neurons of the parasympathetic division. |
| | B) | postganglionic neurons of the sympathetic division. |
| | C) | membranes of skeletal muscle cells. |
| | D) | both a and b. |
| | E) | all of the above. |
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| 16 | |
The activation of α1- and β1- adrenergic receptors |
| | A) | generally produces a stimulatory response. |
| | B) | generally produces an inhibitory response. |
| | C) | most commonly occurs when epinephrine from the adrenal glands binds to them. |
| | D) | occurs when acetylcholine binds to them. |
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| 17 | |
The sympathetic division |
| | A) | is always stimulatory. |
| | B) | is always inhibitory. |
| | C) | is usually under conscious control. |
| | D) | generally opposes the actions of the parasympathetic division. |
| | E) | both a and c. |
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| 18 | |
A sudden increase in blood pressure |
| | A) | initiates a sympathetic reflex that decreases heart rate. |
| | B) | initiates a local reflex that decreases heart rate. |
| | C) | initiates a parasympathetic reflex that decreases heart rate. |
| | D) | both a and b. |
| | E) | both b and c. |
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| 19 | |
Which of these structures is innervated almost exclusively by the sympathetic division? |
| | A) | gastrointestinal tract |
| | B) | heart |
| | C) | urinary bladder |
| | D) | reproductive tract |
| | E) | blood vessels |
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| 20 | |
Which of these is expected if the sympathetic division is activated? |
| | A) | Secretion of watery saliva increases. |
| | B) | Tear production increases. |
| | C) | Air passageways dilate. |
| | D) | Glucose release from the liver decreases. |
| | E) | All of the above. |
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