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Pe > Circulatory System > Flashcards

Circulatory System Flashcards

1
Q

List the 3 functions of the circulatory system

A

Moves O2 rich blood to muscles
Moves CO2 out of the body
Helps fight disease

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2
Q

What is the composition of blood?

A

55% fluid (plasma)
45% solid particles (red and white blood cells and platelets)

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3
Q

Function of red blood cells

A

Carry oxygen from the lungs to body cells
Carry CO2 from cells to lungs

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4
Q

Function of white blood cells

A

Provide protection from illness and infections

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5
Q

What are Platelets

A

Colourless disc-shaped fragments found in blood

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6
Q

Function of Platelets

A

Mend injuries by forming clots to stop excessive bleeding

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7
Q

Define Plasma

A

Yellow fluid containing red and white blood cells, nutrients and waste

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8
Q

What four things does Plasma contain

A

Red blood cells
White blood cells
Nutrients
Waste

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9
Q

Function of arteries

A

They have thick elastic walls to withstand the pressure of blood flowing through them and carry oxygenated blood away from the heart
-> EXCEPT Pulmonary artery carries deoxygenated blood
Have a pulse

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10
Q

Function of Capillaries

A

Capillaries are the link between arteries and veins that allow oxygen, hormones and nutrients from blood to pass into cells.
They allow oxygen and carbon dioxide to be exchanged
Smallest blood cells with think walls

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11
Q

Function of Veins

A

Veins return deoxygenated blood to the heart -> EXCEPT Pulmonary vein carries oxygenated receives oxygenated blood from the lungs and carries it to the left atrium
Veins have valves at regular intervals to prevent back flow of blood
No pulse

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12
Q

Function of the Superior Vena Cava

A

Takes deoxygenated blood from upper body to the heart

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13
Q

Function of the Inferior Vena Cava

A

Takes oxygenated blood from lower body to heart

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14
Q

Function of the Tricuspid valve

A

Allows blood to travel in only one direction
Located between the Right Atrium and Right ventricle

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15
Q

Function of Ventricles

A

Muscular chambers that pumps blood out of the heart into the circulatory system

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16
Q

Does the Pulmonary Artery carry oxygenated or deoxygenated blood?

A

Deoxygenated

17
Q

Does the Pulmonary Vein carry carry oxygenated or deoxygenated blood?

A

Oxygenated

18
Q

Do veins carry carry oxygenated or deoxygenated blood?

A

Deoxygenated

19
Q

Do Arteries carry oxygenated or deoxygenated blood?

A

Oxygenated

20
Q

Does the Superior Vena Cava carry:
Oxygenated or deoxygenated blood AND
Where does it carry it from

A

Deoxygenated blood
From the upper body

21
Q

Where does the Inferior Vena Cava carry:
Oxygenated or deoxygenated blood and
Where does it carry it from

A

Oxygenated blood
Form the lower body

Pe (6 decks)

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