Circulatory System Flashcards

1
Q

What is the main function of the circulatory system?

A

To transport oxygen and nutrients

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2
Q

What are the 4 components blood is made up of

A

Plasma
Red blood cells
White blood cells
Platelets

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3
Q

Name 2 functions of blood

A
  1. Transports substances around the body
  2. Defence against diseases
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4
Q

What is the function of plasma

A

To transport dissolved chemicals and heat
around the body

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5
Q

What are function of RED blood cells

A

Contain a protein pigment (haemoglobin). Haemoglobin helps carry to oxygen around the body

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6
Q

What are the function of WHITE blood cells

A

White blood cells fight infection

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7
Q

What are the functions of platelets

A

Platelets form blood clots e.g. a scab.

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8
Q

Name 2 purposes of blood clotting

A
  1. To prevent blood loss.
  2. To prevent the entry of microorganisms into the body.
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9
Q

What are the functions of arteries

A

carry blood away from the heart.

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10
Q

What are the functions of veins

A

carry blood towards the heart.

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11
Q

What are the functions of capillaries

A

connect arteries and veins.

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12
Q

Which side of the heart contains oxygenated blood

A

Left

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13
Q

What does the aorta do

A

Carries oxygenated blood to rest of body.

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14
Q

What does the pulmonary vein do

A

Carries oxygenated blood to left atria.

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15
Q

What does the pulmonary artery do

A

Carries deoxygenated blood to the lungs.

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16
Q

What is the vena cava

A

Carries deoxygenated blood to right atria.