A flashlight placed just below the eyebrow in a darkened room illuminates the
A)frontal sinus.
B)maxillary sinus.
C)sphenoid sinus.
D)ethmoid sinus.

Question

Quizplus · Accepted Answer

The frontal sinus is located in the forehead, just above the eyebrows. When a flashlight is placed just below the eyebrow in a darkened room, the light can illuminate this area, allowing the frontal sinus to be seen through the skin due to its location and the thinness of the bone separating the sinus from the skin surface.

A Flashlight Placed Just Below the Eyebrow in a Darkened