ATI RN
Test Questions on Autonomic Nervous System MCAT Questions
Question 1 of 5
All of the following statements are true concerning the middle meningeal artery, EXCEPT
Correct Answer: A
Rationale: The middle meningeal artery enters the cranial cavity through the foramen spinosum, not the foramen ovale (which transmits CN V3). It supplies the dura mater (not pia/arachnoid), grooves the skull’s inner table (e.g., squamous temporal bone), and its rupture causes extradural hematoma, making A the false statement.
Question 2 of 5
A stimulus will begin an action potential by
Correct Answer: A
Rationale: A stimulus depolarizes the membrane by opening sodium (Na+) channels, allowing Na+ influx to trigger an action potential.
Question 3 of 5
Identify the layers of the meninges in order from deepest to most superficial.
Correct Answer: B
Rationale: Meninges order is pia mater (deepest), arachnoid mater, dura mater (superficial). Option B is correct: dura, arachnoid, pia is reversed.
Question 4 of 5
The electrical activity of the brain is recorded in the form of a(n):
Correct Answer: B
Rationale: An electroencephalogram (EEG) records brain electrical activity. An electrocardiogram is for the heart, myelogram images the spinal cord, and neurogram is not standard.
Question 5 of 5
The primary motor area is where commands to begin.
Correct Answer: B
Rationale: The primary motor area (frontal lobe) initiates voluntary skeletal muscle movements, not cardiac or smooth muscle.