3.3

Question 1

cardiac pause

Answer 1

period during which the atria and vertricles are relaxed.

Question 2

heart valve

Answer 2

valve between an atrium and a ventricle.

Question 3

right ventricle

Answer 3

part of the heart that pumps blood into the pulmonay artery.

Question 4

heartbeat

Answer 4

contraction of the atria, followed by contraction of the ventricles and then the cardiac pause.

Question 5

semilunar valve

Answer 5

valve at the entrance to the pulmonary artery or aorta.

Question 6

coronary artery

Answer 6

artery branching off from the aorta that takes blood to the cardiac muscle.

Question 7

coronary vein

Answer 7

blood vessel carrying blood away from the cardiac muscle.

Question 8

superior vena cava

Answer 8

vein that brings deoxygenated blood from the head and the arms back to the heart.

Question 9

inferior vena cava

Answer 9

vein that brings deoxygenated blood from the torso from the torso and the legs back to the heart.

Question 10

pulmonary artery

Answer 10

Blood vessel that transports deoxygenated blood from the heart to the lungs.

Question 11

aorta

Answer 11

blood vessel that transports oxygenated blood from the heart to the organs.

Question 12

left atrium

Answer 12

part of the heart that the pulmonary veins exit into.

Question 13

pulmonary vein

Answer 13

blood vessel that transports oxygenated blood from the lungs to the heart.

Question 14

cardiac septum

Answer 14

partition between the left and right halves of the heart.

Question 15

left ventricle

Answer 15

part of the heart that pumps blood through the aorta to all the body’s organs.

Question 16

right atrium

Answer 16

part of the heart that the main veins and coronary veins exit into.