cardiovascular system test 3

Question 1

pulmonary circuit

Answer 1

carries blood to and from the lungs

Question 2

right atrium

Answer 2

receives blood from systemic circuit, both atriums contract at the same time

Question 3

right ventricle

Answer 3

pumps blood into the pulmonary circuit, both ventricles contract at the same time

Question 4

left atrium

Answer 4

receives blood from pulmonary circuit

Question 5

visceral pericardium

Answer 5

inner layer of pericardium that covers the heart

Question 6

auricle

Answer 6

expandable extension of an atrium

Question 7

intercalated discs

Answer 7

joins each of the heart cells together

Question 8

inferior vena cava

Answer 8

carries blood from rest of the trunk, viscera, and lower limb

Question 9

foramen ovale

Answer 9

opening between atriums before birth

Question 10

tricuspid valve

Answer 10

atrioventricular valve between right atrium and right ventricle

Question 11

bicuspid valve (mitral)

Answer 11

valve between left atrium and left ventricle

Question 12

pulmonary circuit

Answer 12

blood leaving right side of the heart going to lungs and back to left atrium

Question 13

pulmonary artery

Answer 13

the blood vessel of deoxygenated blood leaving right ventricle to the lungs

Question 14

semilunar valves

Answer 14

prevent the backflow of blood into the ventricles

Question 15

myocardial infarction

Answer 15

heart attack caused by interruption in blood flown

Question 16

nodal cell

Answer 16

establish rate of contraction of the heart with the sinoatrial and atrioventricular

Question 17

sinoatrial node or cardiac pacemaker

Answer 17

establishes the heart rate

Question 18

parasympathetic autonomic innervation

Answer 18

vagus nerve-slows heart rate down

Question 19

sympathetic autonomic innervation

Answer 19

increases heart rate