ATI RN
Test Questions on Autonomic Nervous System MCAT Questions
Question 1 of 5
The trigeminal nerve
Correct Answer: C
Rationale: The trigeminal nerve (CN V) has its motor nucleus in the upper pons, with three divisions (V1, V2, V3). V3 has motor and sensory roles, and exits vary (e.g., V1 via superior orbital fissure).
Question 2 of 5
The cutaneous innervation of the ear
Correct Answer: D
Rationale: The ear’s cutaneous innervation includes the vagus (auricular branch) for the external auditory canal.
Question 3 of 5
The neuron cell is made up of which of the following parts?
Correct Answer: D
Rationale: A neuron consists of an axon (transmits signals), dendrites (receive signals), and a nucleus (within the cell body, or soma, controlling cell function). 'All of the Above' is correct as these are key components.
Question 4 of 5
Cerebral palsy affects neurons in which part of the body?
Correct Answer: A
Rationale: Cerebral palsy is a disorder of movement caused by damage to motor neurons in the brain (e.g., cortex, cerebellum) before, during, or shortly after birth. It doesn’t primarily affect the spine or muscles directly.
Question 5 of 5
The surface of the cerebral hemispheres, 2-4 mm thick, consisting of gray matter; arranged in six layers of neuronal cell bodies in most areas.
Correct Answer: D
Rationale: The cerebral cortex is the gray matter surface of the cerebral hemispheres, 2-4 mm thick, with six neuronal layers. Astrocytes are glia, neuropathy is a disorder, and cranial nerves are PNS.