What is the average gestational period?

The cylindrical cone that indicates the direction of the central beam of radiation is also called the

CMID. PID. CID. MID.

Which of these statements regarding contraction of the heart is true?

A) The two ventricles contract simultaneously, moving blood into the atria B) The right atria and ventricle contract together, moving blood to the left side C) Both atria contract together just before both ventricles contract together D) When the left ventricle contracts, it sends blood into the lungs for oxygenation