Heart Flashcards

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1
Q

What muscle contracts and releases to make pump blood around the body

A

The heart

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2
Q

What is the valve found between the right atrium and right ventricle

A

Tricuspid

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3
Q

The valve found between the left atrium and left ventricle is the

A

Bicuspid

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4
Q

What are the four chambers of the heart

A

Left ventricle and left atrium, right ventricle and right atrium

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5
Q

What general term is sometimes used to describe both the sets of valves?

A

Atrioventricular valves

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6
Q

What stops the valves being turned inside out when the ventricles contract

A

Tendons supporting the valves

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7
Q

What general term describes the valves found just inside the aorta and pulmonary artery

A

Semilunar

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8
Q

What is the function of the semilunar valves

A

To keep the blood flowing in the right direction

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9
Q

What factors could lead to heart disease

A

Blockages in cardiac/coronary blood supply caused by fatty deposits and can also occur in other blood vessels.
Lifestyles like lack of exercise can lead to obesity, as well as a poor diet (high in fat) smoking and Gentiles diseases.

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10
Q

What factors could change heart rate

A

Heart rate can change during exercise and the influence of adrenaline

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11
Q

Why is cardiac muscle special?

A

It never tires and contracts and relaxes regularly throughout life

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12
Q

What is the heart made of

A

Cardiac muscle

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