Aehlert EKGS made easy chap 1 with correct answers 100%

Aehlert EKGS made easy chap 1 with correct answers 100% 1. The apex of the heart is formed by the _____. a. tip of the left ventricle b. tip of the right atrium c. right atrium and right ventricle d. left atrium and left ventricle - Correct Answers a. tip of the left ventricle 2. The left atrium receives blood from the _____. a. pulmonary veins b. aorta c. pulmonary arteries d. inferior vena cava - Correct Answers a. pulmonary veins 3. The anterior surface of the heart consists primarily of the _____. a. left atrium b. right atrium c. left ventricle d. right ventricle - Correct Answers d. right ventricle 4. Blood pressure is determined by _____ multiplied by _____. e volume; heart rate rate; cardiac output ac output; peripheral vascular resistance e volume; peripheral vascular resistance - Correct Answers ac output; peripheral vascular resistance 5. The right atrium receives venous blood from the head, neck, and thorax via the _____, from the remainder of the body via the _____, and from the heart via the _____. a. coronary sinus; superior vena cava; inferior vena cava b. superior vena cava; coronary sinus; inferior vena cava c. inferior vena cava; superior vena cava; coronary sinus d. superior vena cava; inferior vena cava; coronary sinus - Correct Answers d. superior vena cava; inferior vena cava; coronary sinus 6. The heart is divided into _____ chambers but functions as a _____-sided pump. ; four ; two ; two d. our; three - Correct Answers ; two 7. Stimulation of alpha1 receptors results in _____. ased heart rate heral vasoconstriction riction of bronchial smooth muscle ased force of myocardial contraction - Correct Answers heral vasoconstriction 8. Which side of the heart is a low-pressure system that pumps venous blood to the lungs? a.Left b.Right - Correct Answers b. Right 9. Which side of the heart is a high-pressure system that pumps arterial blood to the systemic circulation? a.Left b.Right - Correct Answers a. left 10. The thick, muscular middle layer of the heart wall that contains the atrial and ventricular muscle fibers necessary for contraction is the _____. rdium ardium rdium ardium - Correct Answers rdium 11. Blood flows from the right atrium through the _____ valve into the right ventricle. l c nic spid - Correct Answers spid 12. Rapid ejection of blood from the ventricular cham