ATI LPN
Medical-Surgical Nursing Neurological System Questions
Question 1 of 5
Which type of neuron carries signals from sensory receptors to the central nervous system (CNS)?
Correct Answer: C
Rationale: Sensory (afferent) neurons transmit from receptors to CNS. Motor go to effectors, interneurons connect within. [Level: Knowledge]
Question 2 of 5
Which phase of the action potential involves the efflux of potassium ions?
Correct Answer: D
Rationale: Repolarization occurs as K+ exits, restoring the negative charge. [Level: Knowledge]
Question 3 of 5
What type of synapse involves the direct flow of ions and electrical current between adjacent neurons?
Correct Answer: B
Rationale: Electrical synapses enable rapid, direct ion transmission via gap junctions. [Level: Knowledge]
Question 4 of 5
Which type of nerve is essential for reflex arcs and communication between sensory and motor neurons within the spinal cord?
Correct Answer: D
Rationale: Interneurons link sensory and motor neurons in reflex arcs within the CNS. [Level: Knowledge]
Question 5 of 5
The layer of the meninges that forms a web-like structure and allows for the circulation of cerebrospinal fluid is the:
Correct Answer: C
Rationale: The arachnoid mater has a web-like structure, facilitating CSF flow. [Level: Knowledge]