12. Heart

Question 1

Muscular organ essential for life as it pumps the blood

Answer 1

Heart

Question 2

Functions of the Heart

Answer 2

1. Generates bp
2. Ensuring one-way blood flow
3. Routing blood
4. Regulating blood supply

Question 3

Is approximately the size of a closed first which is shaped like a blunt cone and located in the thoracic cavity

Answer 3

Heart

Question 4

An artery that carries blood from the right ventricle to the lungs

Answer 4

Pulmonary Trunk

Question 5

An artery that wherein blood comes from the left ventricle and carries blood to the rest of the body

Answer 5

Aorta

Question 6

*Receives blood from the veins
*function as reservoirs
*separated internally from each other by the interatrial septum

Answer 6

Right and Left Atria

Question 7

Three Major Openings of Heart

Answer 7

1. Superior and
2. Inferior Vena Cava
3. Coronary Sinus

Question 8

Major pumping chambers

Answer 8

Right and Left Ventricles

Question 9

This ensure one-way blood flow

Answer 9

Heart Valve

Question 10

Located between each atrium and ventricle

Answer 10

Atrioventricular Valves (AV)

Question 11

Located between each ventricle and its associated great artery

Answer 11

Semilunar Valves

Question 12

Separates the right atrium and the right ventricle (Three cups)

Answer 12

Tricuspid Valve

Question 13

Also called the mitral valve separating left atrium and left ventricle

Answer 13

Bicuspid Valve

Question 14

Attach the papillary muscles to the free margins of the cusps of the atrioventricular valves

Answer 14

Chordae Tendineae

Question 15

Cone-shaped, muscular pillars in each ventricle

Answer 15

Papillary Muscles

Question 16

Located between the right ventricle and pulmonary trunk

Answer 16

Pulmonary Semilunar Valve

Question 17

Located between the left ventricle and aorta

Answer 17

Aortic Semilunar Valve

Question 18

Route of blood flow through the heart

Answer 18

1. Right Atrium
2. Right Ventricle
3. Pulmonary trunk to lungs
4. Lungs to pulmonary veins to left atrium
5. left atrium to left ventricle
6. Left ventricle to aorta and systemic vessels.

Question 19

Supply blood to the wall of the heart

Answer 19

Coronary Arteries

Question 20

Three Major Branches of Left Coronary Artery

Answer 20

1. Anterior Interventricular Artery
2. Circumflex Artery
3. Left Marginal Artery

Question 21

Two Major Branches of Right Coronary Artery

Answer 21

1. Posterior Interventricular Artery
2. Right Marginal Artery

Question 22

Drains blood from the cardiac muscle and carry the blood from the wall of the heart back to the right atrium

Answer 22

Cardiac Veins

Question 23

Three Layers of Tissue

Answer 23

1. Epicardium
2. Myocardium
3. Endocardium

Question 24

Surfaces of the interior wall of the ventricles

Answer 24

Trabeculae Carneae

Question 25

Elongated, branching cells that contain one or occadionally

Answer 25

Cardiac Muscle

Question 26

Record electrical events in the heart

Answer 26

Elctrocardiogram

Question 27

Repetitive pumping process that begins with the onset of cardiac muscle contraction and ends with the beginning of the next contraction

Answer 27

Cardiac Cycle

Question 28

Contraction and Relaxation of two atria

Answer 28

Atrial Systole Atrial Diastole

Question 29

Two main heart sounds

Answer 29

Lubb Dupp

Question 30

First heart sound which has a lower pitch

Answer 30

Lubb

Question 31

Second heart sound

Answer 31

Dupp

Question 32

Heart valve does not close completely

Answer 32

Incompetent Valve

Question 33

Abnormal heart sounds

Answer 33

Murmurs