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science > circulatory System > Flashcards

circulatory System Flashcards

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Biology 101 flashcards
1
Q

blood

A

the red liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body.

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2
Q

Vessels

A

a tubular structure carrying blood through the tissues and organs; a vein, artery, or capillary.

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3
Q

Heart

A

a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation. Invertebrates, there may be up to four chambers (as in humans), with two atria and two ventricles

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4
Q

deoxygenated

A

remove oxygen from the blood

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5
Q

oxygenated

A

supplied, treated, or enriched blood with oxygen.

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6
Q

cardiovascular

A

relating to the heart and blood vessels.

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7
Q

erythrocytes

A

red blood cells

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8
Q

leucocytes

A

white blood cells

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9
Q

plasma

A

the yellowish, liquid part of blood that contains water, minerals, food and wastes from cells

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10
Q

haemoglobin

A

the red pigment in red blood cells that carries oxygen

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11
Q

platelets

A

small bodies involved in blood clotting. They are responsible for healing by clumping together around a wound.

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12
Q

circulatory system

A

the body system that circulates oxygen in the blood to all the cells of the body. The circulatory system consists of the heart, the blood vessels and blood.

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13
Q

capillaries

A

minute tubes carrying blood to body cells. Every cell of the body is supplied with blood through capillaries.

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14
Q

arteries

A

hollow tubes (vessels) with thick walls carrying blood pumped from the heart to other body parts

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15
Q

veins

A

blood vessels that carry blood back to the heart. They have valves and thinner walls than arteries.

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16
Q

vena cava

A

large vein leading into the top right chamber of the heart

17
Q

left atrium

A

upper left section of the heart where oxygenated blood from the lungs enters the heart

18
Q

right atrium

A

upper right section of the heart where deoxygenated blood from the body enters

19
Q

valves

A

:flap-like folds in the lining of a blood vessel or other hollow organ that allow a liquid, such as blood, to flow in one direction only

20
Q

systolic pressure: the higher blood pressure reading during contraction of the heart muscles

A

the higher blood pressure reading during contraction of the heart muscles

21
Q

heartbeat

A

contraction of the heart muscle occurring about 60–100 times per minute

22
Q

pulse

A

alternating contraction and expansion of arteries due to the pumping of blood by the heart

science (8 decks)

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