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A&P Straighterline Final Exam | Questions and Verified Answers | Rated A+ | Latest 2024
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A&P Straighterline Final Exam | Questions and Verified Answers | Rated A+ | Latest 2024 A&P Straighterline Final Exam | Questions and Verified Answers | Rated A+ | Latest 2024

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  • September 5, 2024
  • 74
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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A&P Straighterline Final Exam |
Questions and Verified Answers |
Rated A+ | Latest 2024

Which of the following statements applies to the autonomic
nervous system?
Select one:
a. The ANS innervates skeletal muscle.
b. ANS functions are consciously controlled.
c. The ANS controls unconscious movement of skeletal muscles.
d. The receptor molecules of the ANS may be muscarinic,
nicotinic, or adrenergic.
e. A single neuron from the spinal cord carries action potentials to
effector organs in the
- Correct Answer - d. The receptor molecules of the ANS may be
muscarinic, nicotinic, or adrenergic.


Which of the following is NOT a means of parasympathetic
innervation of effectors?
Select one:
a. spinal nerves
b. abdominal nerve plexuses
c. pelvic splanchnic nerves and pelvic nerve plexuses
d. cranial nerves to the head and neck

,e. vagus nerve and thoracic nerve plexuses
- Correct Answer - a. spinal nerves


The two classes of adrenergic receptors are
Select one:
a. alpha and beta.
b. splanchnic and terminal.
c. muscarinic and nicotinic.
d. nicotinic and cholinergic.
e. muscarinic and terminal.
- Correct Answer - a. alpha and beta.


Which of the following neurons is most likely to be adrenergic?
Select one:
a. preganglionic sympathetic
b. preganglionic parasympathetic
c. postganglionic sympathetic
d. postganglionic parasympathetic
e. postganglionic somatic motor
- Correct Answer - c. postganglionic sympathetic


Consider the following situation: Sympathetic preganglionic axons
enter a sympathetic chain ganglia. In order for these axons to
reach collateral ganglia, they must now travel through

,Select one:
a. a splanchnic nerve.
b. a sympathetic nerve.
c. a gray ramus communicans.
d. a white ramus communicans.
e. a dorsal root ganglion.
- Correct Answer - a. a splanchnic nerve.


Beta-blockers (beta-adrenergic blocking agents) are frequently
used to
Select one:
a. cause vasoconstriction.
b. block muscarinic receptors.
c. dilate the pupils of the eye.
d. prevent increases in heart rate
e. prevent decreases in heart rate.
- Correct Answer - d. prevent increases in heart rate


Which of the following occurs when the parasympathetic system
is stimulated?
Select one:
a. increased blood pressure
b. increased motility of the digestive tract
c. increased metabolism

, d. increased heart rate
e. decreased motility of the digestive tract
- Correct Answer - b. increased motility of the digestive tract


Up-regulation
Select one:
a. results in a decrease in the number of receptor sites in the
target cell.
b. produces an increase in the sensitivity of the target cell to the
hormone.
c. is found in target cells that maintain a constant level of
receptors.
d. produces insensitivity to the hormone in the target tissue.
e. moves the receptors up on the membrane.
- Correct Answer - b. produces an increase in the sensitivity of
the target cell to the hormone.


Which pattern of hormone secretion, often observed in steroid
reproductive hormones, will fluctuate over a monthly cycle?
Select one:
a. acute hormone secretion
b. episodic hormone secretion
c. long-term hormone secretion
d. chronic hormone secretion

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