ATI RN
Nervous System Multiple Choice Questions and Answers Questions
Question 1 of 5
Nerve signal transmission over myelinated axons is called
Correct Answer: A
Rationale: Saltatory conduction is impulse jumping between nodes of Ranvier on myelinated axons, speeding transmission.
Question 2 of 5
Identify the bridge of white matter that connects the right and left cerebral hemispheres.
Correct Answer: A
Rationale: The corpus callosum is the white matter tract connecting the cerebral hemispheres for communication.
Question 3 of 5
The primary taste area is in the
Correct Answer: A
Rationale: The primary taste area (gustatory cortex) is in the insula, deep within the lateral sulcus, processing taste sensation.
Question 4 of 5
Identify the function of the thalamus.
Correct Answer: A
Rationale: The thalamus is primarily a sensory relay center, routing sensory input to the cortex. Temperature and endocrine functions are hypothalamic.
Question 5 of 5
Identify the cranial nerve that serves the muscles of the face for facial expression.
Correct Answer: C
Rationale: The facial nerve (CN VII) controls facial expression muscles (e.g., smiling). Trigeminal is sensory/motor (chewing), abducens and oculomotor move eyes.