Question

9 what is illuminated when a flashlight is placed just below the eyebrow in a darkened room? multiple choice maxillary sinus frontal sinus sphenoid sinus ethmoid sinus

Explanation:

The frontal sinus is located in the supraorbital (above - eyebrow) region. When a flashlight is placed just below the eyebrow, the light can pass through the relatively thin bone of the frontal sinus area and illuminate the frontal sinus. The maxillary sinus is located in the cheekbone area, the sphenoid sinus is deep in the skull near the sella turcica, and the ethmoid sinus is between the eyes.

Answer:

Frontal sinus