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Higher Human Biology > Blood Vessels > Flashcards

Blood Vessels Flashcards

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1
Q

What happens to blood pressure as blood moves through the circulatory system?

A

It decreases

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2
Q

Which type of blood vessel carries blood Away from the heart?

A

Arteries for Away

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3
Q

What type of blood vessel carries blood back IN to the heart?

A

VeIN

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4
Q

What name is given to the cells that line the interior surface of blood vessels?

A

endothelium

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5
Q

What name is given to the inside space of a blood vessel?

A

lumen

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6
Q

From the inside of the blood vessel working out, put the following into the correct order:

a) connective tissue
b) endothelium
c) muscle and elastic fibres

A

b) endothelium
c) muscle and elastic fibres
a) connective tissue

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7
Q

Which type of blood vessel has the thick muscular elastic walls?

A

arteries

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8
Q

Which blood vessels have to cope with the highest pressure?

A

arteries

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9
Q

Which blood vessels have the larger lumen?

A

veins

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10
Q

Which blood vessels contain valves?

A

veins

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11
Q

What is the function of valves?

A

Keep the blood flowing in one direction/ stop the back-flow of blood

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12
Q

What term is given to the contracting of smooth muscle surrounding arteries causing the blood vessel to narrow?

A

vasoconstriction

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13
Q

What term is given to the relaxation of smooth muscle surrounding arteries causing the blood vessels to widen?

A

vasodilation

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14
Q

Which blood vessels allow the exchange of materials with tissues?

A

capillaries

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15
Q

What causes plasma to pass through capillary walls into the tissue fluid surrounding the cells?

A

pressure filtration

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16
Q

Why do plasma proteins not move from the capillaries into the tissue fluid?

A

TOO BIG

17
Q

Name 2 substances that tissue fluid supplies cells with.

A

glucose and oxygen

18
Q

Name a substance that moves from a cell into the tissue fluid to be excreted.

A

carbon dioxide

19
Q

What happens to the majority of tissue fluid at the capillary network?

A

It moves back into the blood.

20
Q

By what process does the majority of tissue fluid move back into the blood?

A

Osmosis

21
Q

What happens to the excess tissue fluid?

A

It moves into lymphatic vessels and it returns to the circulatory system as lymph.

22
Q

Name the watery yellow fluid in blood that carries glucose, amino acids, respiratory gases and plasma proteins.

A

Plasma

23
Q

What do we call the liquid that has undergone pressure filtration and moved from the capillaries to around the cells?

A

Tissue Fluid

24
Q

Other than location, how does tissue fluid differ from blood plasma?

A

Tissue fluid contains little or no protein.

25
Q

What is tissue fluid called when in a lymphatic vessel?

A

Lymph

Higher Human Biology (21 decks)

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