12. Heart Flashcards

deck

1
Q

Muscular organ essential for life as it pumps the blood

A

Heart

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2
Q

Functions of the Heart

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

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

A

Heart

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4
Q

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

A

Pulmonary Trunk

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5
Q

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

A

Aorta

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6
Q

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

A

Right and Left Atria

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7
Q

Three Major Openings of Heart

A
  1. Superior and
  2. Inferior Vena Cava
  3. Coronary Sinus
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8
Q

Major pumping chambers

A

Right and Left Ventricles

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9
Q

This ensure one-way blood flow

A

Heart Valve

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10
Q

Located between each atrium and ventricle

A

Atrioventricular Valves (AV)

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11
Q

Located between each ventricle and its associated great artery

A

Semilunar Valves

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12
Q

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

A

Tricuspid Valve

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13
Q

Also called the mitral valve separating left atrium and left ventricle

A

Bicuspid Valve

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14
Q

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

A

Chordae Tendineae

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15
Q

Cone-shaped, muscular pillars in each ventricle

A

Papillary Muscles

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16
Q

Located between the right ventricle and pulmonary trunk

A

Pulmonary Semilunar Valve

17
Q

Located between the left ventricle and aorta

A

Aortic Semilunar Valve

18
Q

Route of blood flow through the heart

A
  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.
19
Q

Supply blood to the wall of the heart

A

Coronary Arteries

20
Q

Three Major Branches of Left Coronary Artery

A
  1. Anterior Interventricular Artery
  2. Circumflex Artery
  3. Left Marginal Artery
21
Q

Two Major Branches of Right Coronary Artery

A
  1. Posterior Interventricular Artery
  2. Right Marginal Artery
22
Q

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

A

Cardiac Veins

23
Q

Three Layers of Tissue

A
  1. Epicardium
  2. Myocardium
  3. Endocardium
24
Q

Surfaces of the interior wall of the ventricles

A

Trabeculae Carneae

25
Q

Elongated, branching cells that contain one or occadionally

A

Cardiac Muscle

26
Q

Record electrical events in the heart

A

Elctrocardiogram

27
Q

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

A

Cardiac Cycle

28
Q

Contraction and Relaxation of two atria

A

Atrial Systole
Atrial Diastole

29
Q

Two main heart sounds

A

Lubb Dupp

30
Q

First heart sound which has a lower pitch

A

Lubb

31
Q

Second heart sound

A

Dupp

32
Q

Heart valve does not close completely

A

Incompetent Valve

33
Q

Abnormal heart sounds

A

Murmurs