Chambers
Right atrium.
What is the first valve blood passes through when entering the heart?
Tricuspid valve.
Which way does the blood in arteries flow?
Away from the heart.
Which way does the blood in veins flow?
Toward the heart.
What is ischemia?
When the heart muscle is deprived of oxygen.
What is the second chamber blood passes through?
Right ventricle.
What is the second valve blood passes through?
Pulmonary valve.
What artery does blood flow into after being pumped by the left ventricle?
Aorta.
What veins empty into the first chamber of the heart?
Superior vena cava, inferior vena cava, and coronary sinus.
What is angina pectoris?
What is the third chamber blood passes through?
Left atrium.
What is the third valve blood passes through?
Bicuspid (mitral) valve.
What arteries transfer blood to the lungs to be oxygenated?
Pulmonary trunk and pulmonary arteries.
What veins put oxygenated blood back into the heart from the lungs?
Pulmonary veins.
What is a myocardial infarction?
Death of heart muscle cells, also called a heart attack.
What is the final chamber blood passes through?
Left ventricle.
What is the final valve blood passes through?
Aortic valve.
What is the function of valves in the veins?
To prevent backflow.
What are the two types of cardiac valves called?
Semilunar and atrioventricular.
Is the left or right ventricle heart wall larger? Why?
Left ventricle. The left ventricle must pump blood all throughout the body, so the muscle to propel that blood must be bigger and stronger.
Where does the blood go after leaving the pulmonary valve?
Pulmonary trunk and lungs.
What is the natural pacemaker of the heart?