Cardiac And Respiratory systems Flashcards

1
Q

Explain the three stages of a heart beat

A

Stage one: cardiac diastole
The chambers of the heart are relaxed and filling passively
Stage 2: atrial systole
The atria contract, pumping blood into the ventricles
Stage 3: ventricular systole
The left ventricle contracts, driving blood out of the heart and throughout the body via both the pulmonary artery and the aorta

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2
Q

What is cardiac output?

A

The amount of blood that is pumped by the heart per minute

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3
Q

What is stroke volume?

A

The amount of blood pumped by the heart per minute

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4
Q

What is heart rate?

A

The number of beats per minute

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5
Q

What is a normal resting heart rate for adults?

A

60-100 beats per minute

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