Question

What structure does each of the following sinuses drain into: Frontal, anterior, middle, and posterior ethmoidal, sphenoid, maxilla, and nasolacrimal duct?

A) Lacrimal gland
B) Nasopharynx
C) Olfactory bulb
D) Epiglottis

Answer 1

The frontal, anterior, middle and posterior ethmoidal sinuses, maxillary sinus, and sphenoid sinus all drain into the Nasopharynx. The nasolacrimal duct also drains into the Nasopharynx. The lacrimal gland does not drain into any of these structures mentioned.

Step-by-step explanation:

The frontal sinus drains into the Nasopharynx, the anterior ethmoidal sinus drains into the Nasopharynx, the middle ethmoidal sinus drains into the Nasopharynx, the posterior ethmoidal sinus drains into the Nasopharynx, the maxillary sinus drains into the Nasopharynx, and the sphenoid sinus drains into the Nasopharynx. The nasolacrimal duct drains into the Nasopharynx. It is important to note that the lacrimal gland drains into the Lateral aspect of the eye, not one of the sinus structures mentioned.