Question

A reflex arc commonly used to assess the depth of anesthesia is:

Option 1: Stretch reflex
Option 2: Crossed extensor reflex
Option 3: Withdrawal reflex
Option 4: Pupillary light reflex

Answer 1

The reflex arc commonly used to assess the depth of anesthesia is the pupillary light reflex.

Step-by-step explanation:

The reflex arc commonly used to assess the depth of anesthesia is the pupillary light reflex. This reflex involves sensory input through the optic nerve and motor response through the oculomotor nerve to the ciliary ganglion, which projects to the circular fibers of the iris. By constricting the pupils, this reflex helps to limit the amount of light falling on the retina under bright lighting conditions.