ch 19 pt 6

Question 1

What is heart blocks?

Answer 1

Impaired conduction

Question 2

What is cardiac cycle?

Answer 2

All events in heart from the start of one heartbeat to start of the next

Question 3

What is systole?

Answer 3

Contraction - Increases pressure

Question 4

What is diastole?

Answer 4

Relaxation - Decreases pressure

Question 5

What is end-diastolic volume (EDV)?

Answer 5

The amount of blood that is in the ventricles before the heart contracts.

Question 6

What is stroke volume (SV)?

Answer 6

Is amount of blood ejected by ventricle

Question 7

What is end systolic volume (ESV)?

Answer 7

Is amount of blood remaining in ventricle after contraction finishes

Question 8

How do you find ESV?

Answer 8

ESV = EDV - SV mL

Question 9

What are the phases of the cardiac cycle?

Answer 9

Atrial contraction and ventricular filling -> Isovolumetric contraction -> Ventricular ejection -> Isovolumetric relaxation -> Atrial relaxation and ventricular filling

Question 10

What is ventricular balance?

Answer 10

Equal amounts of blood are pumped by left and right sides of the heart

Question 11

What is edema?

Answer 11

Swelling

Question 12

What is cardiac output (CO)?

Answer 12

Amount of blood pumped by a single ventricle in one minute

Question 13

How do you find the cardiac output?

Answer 13

HR x SV = CO L/min

Question 14

What is cardiac reserve?

Answer 14

Capacity to increase cardiac output above rest level