Heart

Question 1

Pulmonary circuit

Answer 1

The path blood takes from the heart to the lungs and back to get oxygen

Question 2

Systematic circuit

Answer 2

The path blood takes from the heart to the REST of the body and back to deliver oxygen

Question 3

Pericardium

Answer 3

A sac that surrounds and protects the heart

Question 4

Parietal pericardium

Answer 4

The outermost layer of the pericardium that lines the chest cavity

Question 5

Visceral pericardium

Answer 5

Innermost layer of the pericardium that covers the heart

Question 6

Pericardial fluid

Answer 6

Acts as a shock absorber and reduces friction for the heart

Question 7

The heart wall is mostly composed of —————, heart muscle.

Answer 7

Myocardium of right ventricle

Question 8

Endocardium

Answer 8

Inner lining of the heart

Question 9

What is the location of the heart?
————-:between the lungs

Answer 9

Mediastinum

Question 10

What’s the function of the right/blue side of the heart?

Answer 10

Pumps O2 poor blood to lungs

Question 11

Left/red

Answer 11

Pumps O2 RICH blood to the body

Question 12

Interatrial septum

Answer 12

Separates the two atria

Question 13

Atrioventricular valve

Answer 13

Found between the atria

Question 14

Semilunar valves

Answer 14

Found between the ventricles and valves that exit the heart and pulmonary trunk

Question 15

Pulmonary semilunar valve

Answer 15

Found between right ventricle and pulmonary trunk (prevents O2 poor blood found in the pulmonary trunk flowing back into the right ventricle)

Question 16

Aortic semilunar valve

Answer 16

Found between the left ventricle and aorta

Question 17

Artery

Answer 17

Carries (O2 rich) blood AWAY from the heart

Question 18

Veins

Answer 18

Carries (O2 poor) blood TO the heart

Question 19

Inner part of a vein or artery is called?

Answer 19

Tuna interna

Question 20

Middle part of a vein or artery

Answer 20

Tunica media

Question 21

Capillaries

Answer 21

Blood vessels that connect arteries and veins and are sued for gas exchange

Question 22

During the ——————-, an action potential is created and transmitted, and it stimulates the contraction of the atria and ventricles.

Answer 22

Cardiac conduction system

Question 23

What has properties of both muscle and nervous tissue

Answer 23

Nodal tissue

Question 24

Pace maker cells, located in the right atria, spontaneously generates an electrical impulse which senses the heart rate of the heart

Answer 24

Sinoatrial Node

Question 25

Atrioventricular bundle

Answer 25

Travels though the intro ventricular septum and up the walls of the heart

Question 26

P-wave

Answer 26

Represents the depolarization of the atria and results in atria contracting

Question 27

QRS complex

Answer 27

Represents the depolarization of the ventricle and realist in the ventricle contracting

Question 28

T-wave

Answer 28

Represents REPOLARIZATION of the ventricles and is when the ventricles are relaxing

Question 29

Contractions of the myocardium

Answer 29

Systole

Question 30

Relaxation of the myocardium

Answer 30

Diastole

Question 31

The 1st sound you hear is due to the ——————- valve closing and is called ————

Answer 31

Atrioventricualr valve LUB

Question 32

The 2nd heart sound is due to the ———— valve closing and is called ———-

Answer 32

Semilunar valve DUB

Question 33

Cardiac output

Answer 33

The volume of blood pumped out of a ventricle in one minute

Question 34

To determine cardiac output

Answer 34

Heart rate x stroke volume