Substance control, food control, exercise control
<span>What is the type of sedation that allows a procedure to be performed without pain to the patinet, they are asleep sot hat means syou cant feel anything beause your sleepin</span>
Answer: The heart consists of four chambers, two atria (upper chambers) and two ventricles (lower chambers). There is a valve through which blood passes before leaving each chamber of the heart. The valves prevent the backward flow of blood.
A. HIV is a sexually transmitted diseases and its called Human immune virus.
