If the MSA nerve is not present,the area is innervated by the PSA,but mostly by the ASA.If the MSA nerve is present,there is communication between the PSA and the ASA.
A) Both statements are true.
B) Both statements are false.
C) The first statement is true;the second statement is false.
D) The first statement is false;the second statement is true.

Question

Quizplus · Accepted Answer

The first statement correctly describes the innervation pattern in the absence of the Middle Superior Alveolar (MSA) nerve, where the Posterior Superior Alveolar (PSA) and the Anterior Superior Alveolar (ASA) nerves compensate. The second statement accurately mentions the communication between the PSA and ASA when the MSA is present, which is a common anatomical variation.

If the MSA Nerve Is Not Present,the Area Is Innervated