Which teeth are located in the center front of the mouth?

When explaining the priorities of helmet removal to a candidate patroller, you would stress:

a. sliding the helmet rearward off the head so that you don't hit the patient's nose. b. sliding the fingers under the occiput so that the head doesn't drop backward. c. applying a cervical collar before removing the helmet to help stabilize the head. d. removing the helmet to ensure the patient's proper alignment on a backboard.

The aVL lead shows the electrocardiogram in the below figure. This is indicative of the occlusion of which of the following coronary arteries?

a. Left coronary artery b. Circumflex artery c. Right coronary artery d. Anterior interventricular branch of the left coronary artery