<prompt> Middle ethmoidal sinus is supplied byAnterior ethmoidal nerve and vesselsMiddle ethmoidal nerve and vesselsPosterior ethmoidal nerve and vesselsAll of the above  <response>: Middle ethmoidal sinus: Made up of 1 to 7 air cells. Opens into middle meatus of nose. Supplied by -Anterior ethmoidal nerve and vessels.Orbital branches of pterygopalatine ganglion. Lymphatic drainage - Submandibular nodes. 