ATI RN
Questions About Nervous System Questions
Question 1 of 5
The portion of the peripheral nervous system that conveys output to skeletal muscles.
Correct Answer: B
Rationale: The somatic nervous system (SNS) controls voluntary movements by conveying motor signals to skeletal muscles. Microglial cells are CNS glia, effector cells are general targets, and electrical excitability is a property, not a system.
Question 2 of 5
One of the two main subdivisions of the autonomic nervous system, having cell bodies of preganglionic neurons in the lateral gray columns of the thoracic segment.
Correct Answer: A
Rationale: The sympathetic nervous system, a subdivision of the ANS, has preganglionic neurons in thoracic and lumbar spinal cord, preparing the body for fight-or-flight. Parasympathetic conserves energy, ANS is broader, and enteric plexuses control digestion.
Question 3 of 5
The part of the nervous system that lies outside the central nervous system, consisting of nerves and ganglia.
Correct Answer: D
Rationale: The peripheral nervous system (PNS) includes nerves and ganglia outside the CNS. Neuroblastoma is a tumor, ANS is a PNS subdivision, and action potentials are signals.
Question 4 of 5
Neuroglial cell that covers choroid plexuses and produces cerebrospinal fluid (CSF); it also lines the ventricles of the brain and probably assists in the circulation of CSF.
Correct Answer: C
Rationale: Ependymal cells line ventricles, produce CSF, and aid its circulation. Neurology is a field, nerve fiber is an axon, and neurotransmitter is a chemical.
Question 5 of 5
Synapse from axon to cell body.
Correct Answer: C
Rationale: An axosomatic synapse occurs from an axon to a neuron’s cell body. Oligodendrocytes are glia, agonist is a drug term, and SNS is a system.