blood vessels Flashcards

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1
Q

what are arteries

A

they are blood vessels that carry blood away from the heart

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2
Q

what kind of blood does arteries carry

A

mainly transport oxygenated blood

exception of the pulmonary artery that carries deoxygenated blood from heart to the lungs

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3
Q

doe arteries have thick walls or thin walls

why

A

thick walls as thy carry blood from heart at high pressure

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4
Q

do arteries carry blood of high pressure or low pressure

A

high pressure

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5
Q

name the biggest artery

A

the Aorta carries blood from heart to the body

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6
Q

when arteries get to the tissues they become even smaller

what are they called now

A

arterioles

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7
Q

wat are veins

A

blood vessels that carry blood toward the heart

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8
Q

what kind of blood does veins carry

A

mainly transport deoxygenated blood

exception of the pulmonary vein that carries oxygenated blood from the lungs to the heart

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9
Q

do veins have thick walls or thin walls

why

A

thin walls as thy carry blood due to low pressure elf blood as it is coming from the body

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10
Q

closer to tissues veins become even smaller

what re they now referred to as

A

venules

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11
Q

wat are capillaries

A

they are blood vessels which connect arterioles to the venules

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12
Q

how big is the wall of capillaries

A

their wall is a single cell thick

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13
Q

why is the wall of capillaries that big

A

their wall is a single cell thick because

it makes it easy for nutrients and oxygen to diffuse across the wall into the tissue cells

and it makes it easy for wastes and carbon D to diffuse from the tissue cells to the blood capillaries

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