Mediastinum & Heart - Blood Supply

Question 1

when is the heart at its max fill?

Answer 1

end of diastole

Question 2

at the end of systole there is a small amount of blood left in the ____

Answer 2

ventricles

Question 3

the total amount of blood ejected at each beat is the

Answer 3

stroke volume

Question 4

formula to find stroke volume

Answer 4

end diastolic volume - end systole volume

Question 5

cardiac output formula

Answer 5

heart rate x stroke volume

Question 6

the amount of blood ejected per minute

Answer 6

cardiac output

Question 7

two ways to increase cardiac output

Answer 7

1. increase heart rate
2. increase stroke volume

Question 8

endurance training tends to increase ____ ____ and subsequently rest heart rate ____

Answer 8

increase stroke volume

heart rate decreases

Question 9

the heart is primarily supplied by

Answer 9

right and left coronary arteries (first branches off aorta)

Question 10

arises from left side of aorta, passes posterior to the pulmonary trunk

Answer 10

left coronary artery

Question 11

• “widow maker”
• a.k.a. left anterior descending artery

Answer 11

anterior interventricular artery

Question 12

supplies left atrium and left posterior ventricle

Answer 12

circumflex branch of left coronary artery

Question 13

branches of left coronary artery (2)

Answer 13

1. anterior interventricular artery
2. circumflex branch of left coronary artery

Question 14

• emerges from right side of aorta
• descends in the coronary sulcus on anterior surface of heart
• between right atrium and right ventricle

Answer 14

right coronary artery

Question 15

right coronary artery branches

Answer 15

1. marginal artery
2. posterior interventricular artery

Question 16

function of cardiac veins

Answer 16

carry the deoxygenated blood from the heart wall into the right atrium

Question 17

the cardiac veins occupies the posterior part of the

Answer 17

coronary sulcus

Question 18

three main branches drain into the coronary sinus

Answer 18

1. great cardiac vein
2. middle cardiac vein
3. small cardiac vein

Question 19

anterior cardiac veins drain directly into the

Answer 19

right atrium

Question 20

vessels off of the aorta (4)

Answer 20

1. coronary arteries
2. brachiocephalic trunk
3. left common carotid artery
4. left subclavian artery

Question 21

brachiocephalic trunk gives rise to:

Answer 21

1. right common carotid
2. right subclavian