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P.E > Structure of the heart > Flashcards

Structure of the heart Flashcards

1
Q

What is the heart?

A

A muscular pump

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2
Q

How many chambers does the heart have?

A

4 chambers

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3
Q

What are the chambers in the heart?

A

Left ventricle
Right Ventricle
Left atrium
Right atrium

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4
Q

What do both left and right atria do in the heart?

A

Collects the blood as it enters the heart

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5
Q

What do the left and right ventricles do in the heart?

A

Pump blood out of the heart

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6
Q

What is the atria’s made up of, the top or the bottom half of the heart?

A

The top half

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7
Q

What is the ventricles made up of, the top or the bottom half?

A

The bottom half

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8
Q

What is the central partition called which divides the heart into two sides, the left side and the right side

A

The septum

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9
Q

What does the right side of the heart pump?

A

Venous blood (Deoxygenated blood)

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10
Q

What does the right side of the heart pump?

A

Pumps oxygenated blood from the lungs around the rest of the body.

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11
Q

One half of the heart has thicker walls which half do you think it is and why?

A

Blood from the left ventricle has to go right around the body, so this ventricle is thicker. Blood from the right ventricle only has to reach the lungs, so this is thinner.

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12
Q

What are the blood vessels in the heart?

A

Pulmonary Artery
Aorta
Pulmonary vein
Vena Cava

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13
Q

What does the pulmonary artery do?

A

Carries deoxygenated blood from the heart to the lungs.

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14
Q

What does the aorta do?

A

Oxygenated blood is pumped at high pressure from the heart to the body

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15
Q

What does the vena cava do?

A

Returns deoxygenated blood to the heart.

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16
Q

What does the pulmonary vein do?

A

Returns oxygenated blood to the heart.

17
Q

How does Venous blood (deoxygenated blood) get Arterial (oxygenated) again and how does Arterial blood (oxygenated blood) get sent to the working muscles?

A
  1. The vena cava brings venous (deoxygenated) blood from the body into the right atrium, where it collects.
  2. The venous blood passes from the right atrium to the right ventricle through a valve with three cusps, called the tricuspid valve.
  3. The blood then passes through the pulmonary (semilunar) valve into the pulmonary artery, and on into the lungs where it will pick up oxygen
  4. Oxygenated blood from the lungs returns to the heart through the pulmonary vein and collects in the left atrium.
  5. It passes into the left ventricle through a valve with two cusps, the bicuspid valve
  6. The oxygenated blood passes through the aortic (semilunar) valve and is ready to be sent round the body, through an artery called the Aorta.

P.E (33 decks)

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