The heart
What is the main function of the heart?
A. Pumping blood throughout the body
Which chamber of the heart receives oxygenated blood from the lungs?
C. Left atrium
What is the medical term for a heart attack?
C. Myocardial infarction
Which of the following is a risk factor for heart disease?
B. High cholesterol
What is the average resting heart rate for adults?
A. 50-60 beats per minute
Which blood vessels carry oxygen-rich blood away from the heart?
A. Arteries
What is the medical term for a rapid heartbeat?
D. Tachycardia
Which valve separates the left atrium from the left ventricle?
C. Mitral valve
What is the term for the measurement of pressure in the arteries when the heart is at rest?
A. Diastolic pressure
Which part of the heart is responsible for generating electrical impulses to regulate the heartbeat?
B. Sinoatrial node
why is the left chamber thicker than the other
it ha