For National Test!!) –Q&A
Occurs when a patient has a very low potassium level ✔️Ans - U wave
What complex occurs when th ventricles contract? ✔️Ans - QRS
complex
the heart has ___ valves? ✔️Ans - 4
The two semilunar valves are? ✔️Ans - pulmonic and aortic valves
Blood returning from the body to the hear enters the? ✔️Ans - right
atrium
The _____ vena cava gets it's blood from the head neck and upper
extremities ✔️Ans - superior
The _____ is the innermost layer of the heart ✔️Ans - endocardium
_____ ______ ________ is a Condition when the heart cannot meet the demands
of the body. ✔️Ans - Congestive heart failure
the two entrance valves of the heart. ✔️Ans - tricuspid and bicuspid
valves
______ is the fibrous outer fluid filled layer that covers the heartand
separates it from the contents in the chest cavity. ✔️Ans - pericardium
The EKG records the electrical impulses called. ✔️Ans - cardiac cycle
contraction of the atrium on ekg ✔️Ans - Pwave
contraction of the ventricles on EKG ✔️Ans - QRS complex
relaxation of the ventricles on EKG ✔️Ans - T wave
the right and left atria are know as the ✔️Ans - receiving chambers