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Physiology 15

Chapter 15 quiz

bicuspid valve. Valve between the left atrium and left ventricle
tricuspid valve. Valve between the right atrium and right ventricle
right ventricle. Chamber that pumps blood to the lungs
left ventricle. Chamber that pumps blood into aorta
left atrium. Chamber that receives oxygenated blood from lungs
right atrium. Chamber that receives deoxygenated blood the body
aortic valve. Valve between the left ventricle and aorta
pulmonary valve. Valve between right ventricle and pulmonary trunk
What does pericardium do Pericardium anchors the heart to the diaphragm.
superior vena cava blood vessel which delivers deoxygenated blood from the head and neck to the heart
An embolus originating in the coronary sinus would first enter the right atrium
Function of the chordae tendineae and papillary muscles of the heart Help prevent the atrioventricular valves from protruding into the atria when the ventricles contract.
Which chamber of the heart has the thickest layer of myocardium? left ventricle
The normal “pacemaker” of the heart is the sinoatrial
What is normal heart action? The two atria contract together, and then the two ventricles contract together.
Heart sounds are produced by? closure of the heart valves
Heart rate and strength of contraction are controlled by the cardiovascular center, which is located in the medullar
The portion of the ECG that corresponds to atrial depolarization is the P wave
The opening of the semilunar valves is due tot he pressure in the ventricles
On the surface of the heart, the boundaries between the atria and ventricles can be distinguished by the coronary sulcus
The Frank-Starling law of the heart Is important in maintaining equal blood output from both ventricles.
. Which of the following sequences best represents the pathway of an action potential through the heart’s conduction system? sinoatrial (SA) node, atrioventricular, atrioventricular (AV) bundle, right and left bundle branches, Purkinje fibers
What is NOT? true concerning the ventricular filing parts of the cardiac cycle? The semilunar valves are open.
Cardiac output equals stroke volume
Most heart problems are due to problems in the coronary circulation
mitral valve prolapse may cause heart murmur
cardiac tamponade heart compression
pericarditis inflammation of heart covering
systole heart chamber contraction
angina pectoris chest pain from ischemia
myocardial infarction heart attack
diastole heart chamber relaxation
Created by: Tiffastic