Original sentence: fuck you
Edited sentence: Nerves, specifically the chorda tympani nerve, and arteries pass through the layers of the superior portion of the membrane.The tympanic membrane is separated into four quadrants, with the center of the four quadrants being the umbo.This light is known as the "cone of light" or "light reflex".Thus, when the tympanic membrane needs to be incised for medical procedures, ENT surgeons will always cut through the inferior and posterior part of the membrane to avoid the vasculature, nerves, and bones associated with the membrane.When examining the tympanic membrane with an otoscope, a bright cone of light is seen in the anterior-inferior part of the membrane