The ventral root of a spinal nerve primarily conta

ATI LPN

ATI LPN Test Bank

The ventral root of a spinal nerve primarily contains:

A. Sensory fibers B. Motor fibers C. Both sensory and motor fibers D. Autonomic fibers

Correct Answer: B

Rationale: Ventral roots carry motor (efferent) fibers from the CNS. [Level: Knowledge]

Preganglionic neurons of the parasympathetic nervous system release the neurotransmitter:

A. Acetylcholine B. Norepinephrine C. Dopamine D. Serotonin

Correct Answer: A

Rationale: Parasympathetic preganglionic neurons release ACh to postganglionic neurons. [Level: Knowledge]

The central nervous system (CNS) includes the:

A. brain and cranial nerves B. brain and spinal cord C. cranial and spinal nerves D. spinal cord and spinal nerves

Correct Answer: B

Rationale: The CNS comprises the brain and spinal cord; nerves are PNS. [Level: Knowledge]

Identify a classification of neurons by structure:

A. Interneuron B. Motor neuron C. Unipolar neuron D. Sensory neuron

Correct Answer: C

Rationale: Unipolar is a structural classification; others are functional. [Level: Knowledge]

Cerebrospinal fluid is located between the _____ and the _____:

A. skull: dura mater B. dura mater: arachnoid mater C. arachnoid mater; pia mater D. pia mater: brain

Correct Answer: C

Rationale: CSF is in the subarachnoid space, between arachnoid and pia mater. [Level: Knowledge]

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