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Patho > Cardiovascular And Pulmonary Disorders Pt. 1 > Flashcards

Cardiovascular And Pulmonary Disorders Pt. 1 Flashcards

1
Q

What part of the heart is more susceptible to injury/failure?

A

Left heart

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2
Q

What structures regulate the heart rhythm?

A

Purkinje fibers

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3
Q

What is the volume of blood ejected from the left ventricle per minute?

A

Cardiac output

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4
Q

Stroke volume x heart rate is the formula for what?

A

Cardiac output

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5
Q

The Volume ejected by left ventricle of the heart during ventricular systole is called what?

A

Stroke volume

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6
Q

What is the force of blood exerted against the walls of the systemic arteries created by the left ventricle of the heart?

A

Blood pressure

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7
Q

What Measures the difference between systolic and diastolic pressure (pulse pressure)?

A

Mean arterial pressure

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8
Q

What does mean arterial pressure have to be above to sustain life?

A

60 mmHg

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9
Q

What is the normal MAP range?

A

70-110 mmHg

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10
Q

Pressure of blood (BP)/Resistance of Vasculature (VR) = ?

A

Blood flow

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11
Q

What records the electrical activities of the heart allowing clinical investigation of heart function?

A

EKG

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12
Q

What is the P wave created by?

A

SA node depolarizing the atria

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13
Q

What is the QRS complex created by?

A

Depolarization of the ventricals

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14
Q

What is the T wave created by?

A

Repolarization of the ventricles

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15
Q

Increased risk for heart disease when total serum cholesterol levels are elevated more than ___?

A

200mg/dL

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16
Q

What signaling molecule stimulates dilutions of blood vessels?

A

Nitric oxide

17
Q

What signaling molecule provokes constriction of vessels?

A

endothelin

18
Q

What signaling molecule stimulates angiogenesis (new collateral blood vessel production)?

A

Vascular endothelial growth factor

19
Q

What signaling molecule is a diuresis agent; induces excretion of excess water?

A

C-type natriuretic peptide

20
Q

What signaling molecule is a thrombolytic agent?

A

Prostacyclin (PG12)

21
Q

What signaling molecule enhances clot formation?

A

Thromboxane A2 (TXA2)

Patho (9 decks)

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