If a physician fee is limited, the details can be found in the insurance contract associated with:

Which of the following is a description of the rule of nines for an adult?

A) The rule of nines assigns 9% to the head and neck; 6% to each upper extremity; 12% to the chest and abdomen; 9% to the upper back, the lower back and buttocks, the front of each lower extremity, and the back of each lower extremity, then 1% to the genital region. B) The rule of nines assigns 9% to the head and neck, each upper extremity, the chest, the abdomen, the upper back, the lower back and buttocks, the front of each lower extremity, and the back of each lower extremity, then 1% to the genital region. C) The rule of nines assigns 9% to the head and neck, as well as each upper extremity; 10% to the chest, the abdomen, and the upper back; 8% to the lower back and buttocks, the front of each lower extremity, and the back of each lower extremity, then 1% to the genital region. D) The rule of nines assigns 9% to the head and neck, each upper extremity, the chest, the abdomen, the upper back, and the lower back and buttocks; 8% to the front of each lower extremity; and 10% for the back of each lower extremity, then 1% to the genital region.

The _____ prevents the backflow of blood into the atria when the ventricles contract

AV valves S/I valves Aortic valve SA valves