Which chamber of the heart forms the apex?

For a PA chest projection with accurate positioning, the

1. SID is set at 72 inches (183 cm). 2. shoulders are positioned at equal distances from the IR. 3. upper midcoronal plane is tilted slightly toward the IR. 4. elbows and shoulders are rotated posteriorly. a. 1 and 2 only b. 2 and 3 only c. 1, 2, and 4 only d. 1, 2, 3, and 4

Fats are an essential component of one's daily diet.

Answer the following statement true (T) or false (F)