ATI RN
Nervous System Questions Questions
Question 1 of 5
Neurons come in which different type(s)?
Correct Answer: D
Rationale: Neurons are classified as sensory (afferent, transmitting sensory input to the CNS) and motor (efferent, transmitting signals to muscles/glands). 'Skeletal' is not a neuron type; thus, 'A and B' (sensory and motor) is correct.
Question 2 of 5
Membrane-enclosed sac in a synaptic end bulb that stores neurotransmitters.
Correct Answer: B
Rationale: Synaptic vesicles are sacs in the synaptic end bulb that store neurotransmitters for release. Effectors are target cells, effector cell is vague, and axoplasm is axon cytoplasm.
Question 3 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 4 of 5
Neuron that carries sensory information from cranial and spinal nerves into the brain and spinal cord or from a lower to a higher level in the spinal cord and brain.
Correct Answer: D
Rationale: Sensory neurons (afferent) carry sensory input from PNS to CNS. Epinephrine is a hormone, effectors are targets, and white matter is axons.
Question 5 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.