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Biology > 47-1 > Flashcards

47-1 Flashcards

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1
Q

aorta

A

the largest artery in the human body; carries blood from the left ventricle to systemic circulation

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2
Q

aortic vavle

A

the semilunar valve on the left side of the heart

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3
Q

arteriole

A

a branch of an artery that gives rise to capillaries

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4
Q

artery

A

a vessel that carries blood away from the heart to the body’s organs

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5
Q

atherosclerosis

A

a disease characterized by the buildup of fatty materials on the interior walls of the arteries

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6
Q

atrioventricular node

A

a group of nerves in the heart that functions in the heartbeat

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7
Q

atrioventricular valve

A

a one-way valve separating each atrium from the ventricle beneath it

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8
Q

atrium

A

an anterior chamber of the heart

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9
Q

blood pressure

A

the force that blood exerts against the walls of a blood vessel

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10
Q

capillary

A

the smallest vessel in the blood vessel network

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11
Q

cardiovascular system

A

the blood, the heart, and the blood vessels

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12
Q

circulatory system

A

the system that distributes oxygen and nutrients to cells in all parts of the body

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13
Q

coronary circulation

A

a subsystem of systemic circulation that supplies blood to the heart

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14
Q

diastole

A

a phase in the heartbeat during which the ventricles relax and the blood flows in from the atria

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15
Q

diastole pressure

A

the pressure maintained in the blood when the ventricles are relaxed

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16
Q

hepatic portal circulation

A

the system of blood movement through the digestive tract and liver

17
Q

hypertension

A

high blood pressure

18
Q

inferior vena cava

A

the large vein carrying blood from the lower part of the body

19
Q

lymph

A

lymph the clear fluid that bathes each cell and transfers needed substances and wastes back and forth between the blood and the cells; fluid of the lymphatic system

20
Q

lymphatic system

A

a series of one-way vessels that carry intercellular fluid from tissues to the bloodstream

21
Q

lymphocyte

A

a type of white blood cell in two primary forms, T cells and B cells

22
Q

mitral valve

A

bicuspid valve; the atrioventricular valve on the left side of the heart

23
Q

pacemaker

A

the sinoatrial node that regulates the contraction of the heart

24
Q

pericardium

A

the tough saclike membrane that surrounds the heart

25
Q

pulmonary valve

A

semilunar valve positioned between the right ventricle and the pulmonary artery

26
Q

pulmonay vein

A

the vein that carries oxygenated blood from the lungs to the heart

27
Q

renal circulation

A

a subsystem of the systemic circulation that involves the movement of blood through the kidneys

28
Q

semilunar valve

A

valve that separates the ventricles from the largest on each side of the heart

29
Q

septum

A

a wall dividing hyphae into cells; a thick wall that divides an organ

30
Q

sinoatrial node

A

the nerve tissue in the right atrium that regulates the contraction rate of the heart

31
Q

superior vena cava

A

the large vein carrying blood from the upper part of the body

32
Q

systemic circulation

A

the movement of blood between the heart and all parts of the body except the lungs

33
Q

systole

A

the phase of the heartbeat in which the ventricles contracts and force blood into the arteries

34
Q

systolic pressure

A

pressure of the blood when the ventricles contract

35
Q

vein

A

a vessel carrying blood to the heart

36
Q

ventricle

A

a lower, and the most muscular chamber of the heart

37
Q

venule

A

a small vessel in the network of veins

Biology (3 decks)

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