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Med Term > Chapter 11 > Flashcards

Chapter 11 Flashcards

1
Q

Valve

A

Structure in veins/heart that temporarily closes an opening so that blood flows in only 1 direction.

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2
Q

Vein

A

Thin walled vessel that carries blood from body tissues & lungs back to heart.

  • Veins contain valves to prevent back flow of blood.
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3
Q

Vena cava

A

Largest vein in body. The superior & inferior vena cava return blood to the right atrium of the heart.

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4
Q

Ventricle

A

1 of 2 lower chambers of the heart.

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5
Q

Venule

A

Small vein

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6
Q

Coronary arteries

A

Blood vessels that branch from the aorta & carry oxygen rich blood to the heart muscle.

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7
Q

Aorta

A

Largest artery in the body

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8
Q

Pacemaker (sinoatrial node)

A

Specialized nervous tissue in the right atrium that begins the heart beat

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9
Q

Normal sinus rhythm

A

Heart rhythm originating In the sinoatrial node w/ a rate of 60-100 beats per min.

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10
Q

Myocardium

A

Muscular middle layer of heart

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11
Q

Endothelium

A

Innermost lining of blood vessels

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12
Q

Mitral valve

A

Valve between the left atrium and left ventricle

*Aka bicuspid valve

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13
Q

Endocardium

A

Inner lining of the heart

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14
Q

Diastole

A

Relaxation phase of the heartbeat

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15
Q

Capillary

A

Smallest blood vessel

  • materials pass to & from the bloodstream though the thin capillary walls
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16
Q

Atrium

A

1 of 2 upper chambers of the heart

17
Q

Atrioventricular node (AV node)

A

Specialized tissue in the wall between the atria.

  • electrical impulses pass from the pacemaker (SA node) through the AV node and the atrioventricular bundle or bundle of his towards the ventricles
18
Q

Atrioventricular bundle (Bundle of His)

A

Specialized muscle fibers connecting the atria w/ the ventricles & transmitting electrical impulses between them.

19
Q

Artery

A

Largest type of blood vessel

  • carries blood away from the heart to all parts of the body

Artery + away begin with “A”

20
Q

Arteriole

A

Small artery

21
Q

Apex of heart

A

Lower tip of the heart

22
Q

Pericardium

A

Double layered membrane surrounding the heart

23
Q

Pulmonary artery

A

Artery carrying oxygen poor blood from heart to the lungs

24
Q

Pulmonary circulation

A

Flow of blood from heart to the lungs and back to the heart

25
Q

Pulmonary valve

A

Valve positioned between the right ventricle and pulmonary artery

26
Q

Pulmonary vein

A

1 of 2 pairs of vessels carrying oxygenated blood from the lungs to the left atrium of the heart

27
Q

Septum

A

Partition/wall dividing a cavity

28
Q

Sinoatrial node (SA node)

A

Pacemaker of the heart

29
Q

Systemic circulation

A

Flow of blood from the body tissue to heart & then from the heart back to body tissues

30
Q

Systole

A

Contraction phase of heart beat

31
Q

Tricuspid valve

A

Located between the right atrium & right ventricle

  • Has 3 leaflets/cusps

Med Term (8 decks)

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