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Sports Science > Cardiovascular System > Flashcards

Cardiovascular System Flashcards

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1
Q

Functions of CV system

A

Transports nutrients
Transports oxygen
Transports CO2
Clotting of open wounds
Regulation of body temperature

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2
Q

Vena cava

A

Transports deoxygenated blood from body to right atrium

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3
Q

Right atrium

A

Top chamber of the heart which holds deoxygenated blood

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4
Q

Tricuspid valve

A

Stops blood flowing back into right atrium

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5
Q

Right ventricle

A

Bottom chamber that holds deoxygenated blood

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6
Q

Semi lunar valve

A

Stop blood flowing back into right ventricle

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7
Q

Pulmonary artery

A

Transports deoxygenated blood from heart to lungs

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8
Q

Pulmonary vein

A

Transports oxygenated blood from lungs to hears

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9
Q

Left atrium

A

Top chamber of heart which carries oxygenated blood

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10
Q

Semi lunar valve

A

Stops the blood flowing back into left ventricle

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11
Q

Left ventricle

A

Bottom chamber which holds oxygenated blood

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12
Q

Aorta

A

Transports oxygen plated blood from heart to rest of the body

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13
Q

Septum

A

Wall separating the right and left side of the heart

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14
Q

Artery structure

A
  • thick walls
  • think elastic walls
  • small lumen
  • carries blood at high pressure
  • carries blood away from the heart
  • usually carries oxygenated blood apart from pulmonary artery
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15
Q

Why are arteries important during physical activity

A

When we excerize blood pressure increases due to the demand for O2 from the working muscles. Arteries take the blood to the working muscles and dilate to allow more blood through

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16
Q

Vein structure

A
  • thin walls
  • large lumen
    -carry blood at low pressure
  • mainly carry deoxygenated blood
17
Q

Vein importance

A

When we exercise aerobically, CO2 is a waste produced and blood in the veins takes it to the lungs to be exhaled. Valves in the vein prevent the back flow of blood at low temperatures

18
Q

Capillary structure

A
  • very thin walls
  • small lumen
  • links smaller arteries to small veins
  • allow gaseous exchange
19
Q

Capillary importance

A

When we exercise we need to deliver O2 to the working muscles and remove CO2. Capillaries allow the gaseous exchange at the lung and the muscle

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