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PE Boaler Unit 1 > cardiovasuclar system > Flashcards

cardiovasuclar system Flashcards

1
Q

what are the 3 functions of the cardiovascular system

A

transporting
controlling blood temp
protecting

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2
Q

what are the 4 valves called and what side are they on

A

tricuspid left
bicuspid right
pulmonary valve
aortic valve

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3
Q

what is the function of the valves

A

prevent backflow of blood

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4
Q

where does the blood start and end 🚂🚂

A

right atrium
tricuspid valve
right ventricle
pulmonary valve
pulmonary artery
pulmanary vein left atrium bicuspid valve
left ventrical
aortic valve
aorta
vena cave

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5
Q

heart during excersie
what is stroke volume
and the average

A

amount of blood pumped out the left ventricle per beat
average 70ml

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6
Q

what is the cardiac output

A

amount of blood pumped out the left ventricle per minute

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7
Q

what happens during excersie to the heart

A

heart contracts powerfully

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8
Q

what happens to the heart if you do regular exercise

A

becomes bigger, stronger , stroke volume increases, lower resting heart rate

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9
Q

long term effects cardiovascular system

A

bigger stronger heart
lower resting heart rate
increased blood supply

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10
Q

short term effects cardiovascular system

A

increased heart rate
increased stroke volume
increased cardiac output

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11
Q

what are the 4 blood vessels

A

veins
arteries
capillaries
valves

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12
Q

what do veins do structure and function

A

carry blood back to the heart
thin layer of muscle
thin outer wall
wide lumen

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13
Q

what is the structure function of arteries?

A

carries blood away from the heart
thick outer wall
thin layer of muscle
narrow lumen

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14
Q

what is the function and structure of capillaries

A

one cell thick
transport blood

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15
Q

what is the function of blood

A

transports oxygen and nutrients

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16
Q

what is the structure and function of red blood cells and what do they contain

A

transport oxygen
made in bone marrow
no nucleus
disc shaped
contain haemoglobin

17
Q

what is the structure and function of white blood cells

A

fight against infection
bigger than RBC

18
Q

what is the structure and function of platelets

A

close wounds
form scabs by repairing tissue

19
Q

what is the structure and function of plasma

A

made up of water
transport antibodies, nutrients

20
Q

what happens if there is less oxygen available in blood

A

produce more red blood cells

21
Q

what is vascular shunt

A

redistribution of blood flow during exercise
more oxygen to working muscles

22
Q

what is the structure and function of arterioles

A

smallest arteries, regulate blood flow into capillaries beds, widen to allow blood flow

23
Q

what is the structure and function of pre- capillary sphincters

A

ring-like muscle act like doors restrict blood flow
vasodilate, vasoconstric

PE Boaler Unit 1 (4 decks)

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