ATI RN
Test Questions on Autonomic Nervous System Questions
Question 1 of 5
Vital centers for regulating heartbeat, breathing, and blood pressure are located in the
Correct Answer: D
Rationale: The medulla oblongata houses vital centers for heart rate, respiration, and blood pressure.
Question 2 of 5
Which of the following does NOT describe the autonomic nervous system?
Correct Answer: C
Rationale: The autonomic nervous system (ANS) uses two neurons (pre- and postganglionic) and a ganglion, not one. It is involuntary, serves organs, and has sympathetic/parasympathetic divisions.
Question 3 of 5
Which part of the neuron conducts nerve impulses?
Correct Answer: A
Rationale: The axon conducts nerve impulses away from the cell body. Dendrites receive, synapses connect, and the nucleus controls cell function.
Question 4 of 5
Axons that conduct nerve impulses away from the central nervous system are called:
Correct Answer: B
Rationale: Efferent axons (motor) carry impulses from CNS to effectors. Afferent axons (sensory) go to CNS, interneurons connect within, and 'relay' is a subtype.
Question 5 of 5
Bipolar neurons are commonly found in the:
Correct Answer: B
Rationale: Bipolar neurons, with one dendrite and one axon, are in sensory organs like the retina. Spinal cord has multipolar, muscles/skin lack neurons.