ATI RN
Test Questions on Autonomic Nervous System MCAT Questions
Question 1 of 5
The afferent path of the sneeze reflex is mediated via the
Correct Answer: B
Rationale: The sneeze reflex’s afferent path is via the maxillary nerve (V2), sensing nasal irritation, with efferent via CN VII/X. V1 senses the cornea, V3 the jaw, and vagus (X) isn’t primary here.
Question 2 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 3 of 5
Which nerve supplies the vertex of the scalp
Correct Answer: A
Rationale: The greater occipital nerve (C2) supplies the vertex and posterior scalp.
Question 4 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 5 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.