The Cardiac Cycle

Question 1

name for divide between two sides of the heart which signals are sent from the atrium to the ventricle

Answer 1

bundle of His

Question 2

name for artery which takes blood from heart to body

Answer 2

aorta

Question 3

name for artery which takes blood from heart to lungs

Answer 3

pulmonary artery

Question 4

name for vein which carries blood from the lungs to the heart

Answer 4

pulmonary vein

Question 5

name for vein which carries blood from the body to the heart

Answer 5

vena cava

Question 6

name for chamber which pumps blood to the legs

Answer 6

right ventricle

Question 7

name for chamber which pumps blood to the lungs

Answer 7

left ventricle

Question 8

name for chamber which pumps blood to the left ventricle

Answer 8

left atrium

Question 9

name for chamber which pumps blood to the right ventricle

Answer 9

right atrium

Question 10

name for valves between chambers

Answer 10

atrioventricular valves

Question 11

name for valves between ventricles and blood vessels

Answer 11

semi-lunar valves

Question 12

define diastole

Answer 12

the relaxation phase of the cardiac cycle

Question 13

what happens during systole

Answer 13

the SAN transmits electrical impulses throughout the atria (often called pacemaker). muscles contract. blood forced to ventricles. ventricles contract, opening semi-lunar valve blood is forced out into arteries

Question 14

name the two nodes

Answer 14

atrioventricular node and sinoatrial node

Question 15

how is the signal from the SAN delayed before it gets to the ventricle

Answer 15

non-conductive tissue in in the atrioventricular septum