The Modern Medics on Instagram: "The anterior ethmoid neurovascular complex refers to the group of nerves and blood vessels—primarily the anterior ethmoidal artery, vein, and nerve—that pass through the anterior ethmoidal canal from the orbit into the nasal cavity. This complex supplies the anterior ethmoid sinus, frontal recess, and anterior part of the nasal septum and lateral wall. Its location is clinically important because injury during endoscopic sinus surgery can cause bleeding or cerebr