CIrculatory System

Question 1

What is the sinoatrial node

Answer 1

starts heart contraction

Question 2

Jugular Veins

Answer 2

Internal and External jugular veins come together at the base of the neck

Question 3

Coronary Artery

Answer 3

Supplies the heart with oxygenated blood

Question 4

Capillaries

Answer 4

Semi permeable to allow oxygen and nutrient exchange

Question 5

Myocardium

Answer 5

Heart muscle

Question 6

Three veins that drain into the right atrium

Answer 6

Inferior Vena Cava, Superior vena cava, and coronary sinus

Question 7

Excitability

Answer 7

cells ability to respond to electrical impulses

Question 8

Baroreceptors

Answer 8

Measure/detect pressure changes in heart and arteries

Question 9

Ejection fraction

Answer 9

How much blood returns to the heart in a minute

Question 10

Cardiac Output

Answer 10

Stroke volume x heart rate in a minute

Question 11

Stroke volume

Answer 11

amount of blood ejected per contraction

Question 12

Afterload

Answer 12

The pressure that the left ventricle needs to overcome to push blood through the aortic valve