Heart Flashcards

(28 cards)

1
Q

What does the skeletal muscles require to perform physical activity?

A

A good supply of energy to supply the energy

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2
Q

What is the primary function of the heart?

A

To transport oxygen in the blood away from the heart

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3
Q

What is a ‘dual action pump’?

A

When two separate pumps work simultaneously to pump blood to two different destinations

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4
Q

What does the right side pump?

A

Deoxygenated blood to the lungs

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5
Q

What does the left side pump?

A

Oxygenated blood to the rest of the body

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6
Q

How are the two pumps of the heart separated?

A

By the septum

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7
Q

What do the two pumps consist of?

A

Two chambers, an atrium and a ventricle

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8
Q

How many chambers does the heart consist of?

A

Four

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9
Q

What are the left and right atria?

A

Upper, low pressure chambers that collect and store blood before pumping it below into the left and right ventricles

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10
Q

What size are the muscular walls of the atria?

A

Relatively thin compared with the ventricles because the blood only has to be pumped directly below

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11
Q

What are the left and right ventricles?

A

Lower, high pressure chambers that generate force/pressure required to pump blood around the whole body

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12
Q

Why are the muscle walls thicker in the ventricles?

A

They generate force which requires a greater contraction therefore the muscular walls need to be thicker

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13
Q

Why does the left ventricle have a thicker muscular wall than the right one?

A

The right ventricle only pumps blood to the lungs whereas the left ventricle pumps blood around the whole body

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14
Q

What are the functions of the one-way valves?

A

The control the forward direction of the blood flow through the heart and prevent the back flow of blood with in the heart chambers

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15
Q

What separates the atria and the ventricles?

A

Two atrioventricular valves

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16
Q

What is the right AV valve called?

A

The tricuspid valve

17
Q

What is the left AV valve called?

A

The bicuspid valve

18
Q

What is the full name of the SL valves?

A

The semilunar valves

19
Q

What is the right SL valve called?

A

The pulmonary valve and exits the right ventricle into the pulmonary artery

20
Q

What is the left SL valve called?

A

The aortic valve that exits the left ventricle into the aorta

21
Q

Why does the heart interact with the blood vessels?

A

To transport blood to and from the heart

22
Q

What does the superior/inferior vena cava carry?

A

Deoxygenated blood from the body to the right atrium

23
Q

What does the pulmonary artery carry?

A

Deoxygenated blood from the right ventricle to the lungs

24
Q

What does the pulmonary veins carry?

A

Oxygenated blood from the lungs to the left atrium

25
What does the aorta carry?
Oxygenated blood from the left ventricle to the whole body
26
What is the heart wall made out of?
Cardiac muscle
27
What are coronary arteries?
Left and right branches from the aorta encircle and supply the heart muscle with oxygen and glucose
28
What are coronary veins?
Alongside the coronary arteries, drain deoxygenated blood directly back into the right atrium via the coronary sinus