Circualtory System Flashcards

1
Q

Through which veins does deoxygenated blood enter the right atrium?

A

Superior vena cava and inferior vena cava

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2
Q

What do veins do?

A

Carry blood to the heart

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3
Q

What do arteries do?

A

Carry blood away from the heart

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4
Q

What structure must blood pass through before it enters the right ventricle?

A

The tricuspid valve

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5
Q

What is the atria?

A

The two upper chambers of the heart

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6
Q

What are the ventricles?

A

The two lower chambers of the heart

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7
Q

What is the bicuspid valve?

A

Located between the left atrium and left ventricle. Controls the flow of blood.

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8
Q

What is the tricuspid valve?

A

Located between the right atrium and right ventricle. Controls blood flow.

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9
Q

What is the pulmonary artery?

A

Brings deoxygenated blood from the right side of the heart to the lungs.

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10
Q

What are the pulmonary veins?

A

Blood vessels that transfer oxygenated blood from the lungs to the left atria of the heart.

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11
Q

What is the superior vena cava?

A

Large vein that directs blood to the right atrium.

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12
Q

What is the location and function of the tricuspid valve?

A

Location: opening between right atrium and right ventricle

Function: prevents blood from moving from right ventricle into right atrium during ventricular contraction

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13
Q

What is the location and function of the pulmonary valve?

A

Location: entrance to pulmonary trunk

Function: prevents blood from moving from pulmonary trunk into right ventricle during ventricular relaxation

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14
Q

What is the location and function of the bicuspid valve?

A

Location: opening between left atrium and left ventricle

Function: prevents blood from moving from left ventricle into left atrium during ventricular contraction

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15
Q

What is the location and function of the aortic valve?

A

Location: entrance to aorta

Function: prevents blood from moving from aorta into left ventricle during ventricular relaxation

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16
Q

What is the covering of the heart called?

A

The pericardium

17
Q

What are the layers of the pericardium?

A

Outer layer-fibrous pericardium
Middle layer-parietal pericardium
Inner layer-visceral pericardium (epicardium)

18
Q

What are the three layers of the wall of the heart?

A

Outer- epicardium
Middle-myocardium
Inner-endocardium

19
Q

What do the right and left coronary arteries do?

A

Supply blood to the heart’s tissues

20
Q

What do the cardiac veins do?

A

Drain blood that has passed through myocardial capillaries.