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Anatomy Vocab > Chapter 11 > Flashcards

Chapter 11 Flashcards

1
Q

aorta

A

largest artery in the body

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2
Q

apex of the heart

A

lower tip of the heart

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3
Q

arteriole

A

small artery

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4
Q

artery

A

largest type of blood vessel; carries blood away from the heart to all parts of the body

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5
Q

atrioventricular bundle (bundle of His)

A

specialized muscle fibers connecting the atria with the ventricles and transmitting electrical impulses between them

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6
Q

atrioventricular node (AV node)

A

specialized tissue in the wall between the atria; electrical impulses pass through toward the ventricles

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7
Q

atrium

A

one of two upper chambers of the heart

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8
Q

capillary

A

smallest type of blood vessel; materials pass to and from the bloodstream through the thin walls

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9
Q

carbon dioxide (CO2)

A

gas (waste) released by body cells, transported via veins to the heart, and then to the lungs for exhalation

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10
Q

carotid arteries

A

two common arteries located on each side of the neck branch from the aorta and provide blood to head, neck, and brain

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11
Q

coronary arteries

A

blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle

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12
Q

deoxygenated blood

A

blood that is oxygen-poor

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13
Q

diastole

A

relaxation phase of the heartbeat

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14
Q

electrocardiogram

A

record of the electrical activity of the heart; electricity is represented by waves or deflections called P, QRS, and T

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15
Q

endocardium

A

inner lining of the heart

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16
Q

endothelium

A

innermost lining of blood vessels

17
Q

mitral valve

A

valve between the left atrium and the left ventricle; bicuspid valve

18
Q

murmur

A

abnormal swishing sound caused by improper closure of the heart valves

19
Q

myocardium

A

muscular middle layer of the heart

20
Q

normal sinus rhythm

A

heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute

21
Q

oxygen

A

gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells

22
Q

pacemaker (sinoatrial node)

A

specialized nervous tissue in the right atrium that begins the heartbeat

23
Q

pericardium

A

double-layered membrane surrounding the heart

24
Q

pulmonary artery

A

artery carrying oxygen-poor blood from the heart to the lungs

25
Q

pulmonary circulation

A

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

26
Q

pulmonary valve

A

valve positioned between the right ventricle and the pulmonary artery

27
Q

pulmonary vein

A

one of two vessels carrying oxygenated blood from the lungs to the left atrium of the heart

28
Q

pulse

A

beat of the heart as felt through the walls of the arteries

29
Q

septum

A

partition or wall dividing a cavity; such as between the right and left atria and right and left ventricles

30
Q

sinoatrial node (SA node)

A

pacemaker of the heart

31
Q

sphygmomanometer

A

instrument to measure blood pressure

32
Q

systemic circulation

A

flow of blood from body tissue to the heart and then from the heart back to body tissues

33
Q

systole

A

contraction phase of the heartbeat

34
Q

tricuspid valve

A

located between the right atrium and the right ventricle; has three leaflets, or cusps

35
Q

valve

A

structure in veins or in the heart that temporarily closes an opening so that blood flows in only one direction

36
Q

vein

A

thin-walled vessel that carries blood from body tissues and lungs back to the heart; contain valves to prevent backflow of blood

37
Q

vena cava

A

largest vein in the body; superior and inferior venae cavae return blood to the right atrium of the heart

38
Q

ventricle

A

one of two lower chambers of the heart

39
Q

venule

A

small vein

Anatomy Vocab (19 decks)

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