ATI RN
Questions About the Nervous System Questions
Question 1 of 5
Saltatory conduction occurs in myelinated axons and involves:
Correct Answer: B
Rationale: Saltatory conduction is rapid jumping between nodes, enhancing speed. Continuous is unmyelinated, slow isn’t typical, bidirectional rare.
Question 2 of 5
The composition of cerebrospinal fluid includes:
Correct Answer: A
Rationale: CSF has high glucose (energy) and low protein (unlike blood), reflecting its filtration from plasma.
Question 3 of 5
The cerebrum is divided into two hemispheres, connected by a bundle of nerve fibers known as the:
Correct Answer: A
Rationale: The corpus callosum connects cerebral hemispheres. Medulla, thalamus, and pons have other roles.
Question 4 of 5
The primary motor cortex, responsible for the voluntary control of skeletal muscles, is located in the:
Correct Answer: A
Rationale: The primary motor cortex (precentral gyrus) in the frontal lobe controls skeletal muscles.
Question 5 of 5
The gustatory cortex, involved in the perception of taste, is located in the:
Correct Answer: C
Rationale: The gustatory cortex, often in the insular/temporal region, processes taste.