ATI RN
Nervous System Questions Questions
Question 1 of 5
A synaptic arrangement in which the synaptic end bulbs of several presynaptic neurons terminate on one postsynaptic neuron.
Correct Answer: D
Rationale: Convergence is when multiple presynaptic neurons synapse on one postsynaptic neuron, integrating signals. Neuropathy is a disorder, axosomatic is a synapse location, and microglial cells are glia.
Question 2 of 5
A cluster of neuronal cell bodies in the peripheral nervous system, such as the dorsal root ganglion.
Correct Answer: A
Rationale: A ganglion is a PNS cluster of neuronal cell bodies, e.g., dorsal root ganglion. Action potentials are signals, synaptic cleft is a gap, and neuropathy is a disorder.
Question 3 of 5
The functional junction between two neurons or between a neuron and an effector, such as a muscle or gland; may be electrical or chemical.
Correct Answer: C
Rationale: A synapse is the junction where neurons communicate with neurons or effectors, via chemical or electrical signals. Effectors are targets, effector cell is vague, and neurotransmitter is a synapse component.
Question 4 of 5
The brain and spinal cord.
Correct Answer: A
Rationale: The central nervous system (CNS) comprises the brain and spinal cord. White matter is axons, interneurons are neurons, and gray matter is cell bodies.
Question 5 of 5
Ability to respond to certain stimuli by producing electrical signals.
Correct Answer: D
Rationale: Electrical excitability is the ability of neurons/muscles to generate electrical signals (action potentials) in response to stimuli. Satellite cells are glia, spinal nerves are structures, and tract is CNS axons.