The deeper sinuses,particularly the ethmoid,are most commonly involved in sinus infections that are difficult to localize.A new opening can be surgically created to assist with proper drainage.Note that the maxillary sinuses,while not as deep,commonly become infected.
A) Both statements are true. B) The first statement is true;the second statement is false. C) The first statement is false;the second statement is true. D) Both statements are false.