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1. Laboratory - Organ System Physiology > Definitions and Equations > Flashcards

Definitions and Equations Flashcards

1
Q

Define blood pressure.

A

The pressure exerted on the blood vessels by the blood

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2
Q

What is the equation for blood pressure?

A

Cardiac output x total peripheral resistance

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3
Q

What is the equation for cardiac output?

A

Heart rate by stroke volume

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4
Q

What is peripheral vascular resistance?

A

Resistance to blood flow

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5
Q

Define systolic blood pressure.

A

Pressure in artery following ventricular systole

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6
Q

Define diastolic blood pressure.

A

Pressure in artery during ventricular diastole

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7
Q

Define pulse pressure.

A

Difference between systolic and diastolic pressure during the cardiac cycle

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8
Q

What is the equation for pulse pressure?

A

Systolic-diastolic

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9
Q

Define mean arterial blood pressure

A

Mean blood pressure throughout the cardiac cycle

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10
Q

What is the equation for mean arterial blood pressure?

A

Diastolic + 1/3 (systolic-diastolic)

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11
Q

Define tidal volume (Vt)

A

The amount of air inhaled or exhaled with each breath

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12
Q

Define expiratory reserve volume (ERV)

A

The volume of air that can be voluntarily expelled after completing a normal, quiet respiratory cycle

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13
Q

Define inspiratory reserve volume (IRV)

A

The volume of air that can be inhaled above the Tidal volume

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14
Q

Define vital capacity (VC)

A

Tidal volume plus expiratory and inspiratory reserve volumes

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15
Q

Define residual volume (RV)

A

Air left in lungs after maximum exhalation

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16
Q

Define total lung capacity (TLC)

A

Total volume of the lungs = vital capacity + residual volume

17
Q

What is the equation for vital capacity?

A

Tidal volume + inspiratory reserve volume + expiratory reserve volume

18
Q

What is the equation for total lung capacity?

A

Vital capacity + residual volume

19
Q

What is minute ventilation?

A

The volume of air brought into the lungs every minute

20
Q

What is the equation for minute ventilation?

A

Tidal volume x respiration rate

1. Laboratory - Organ System Physiology (9 decks)

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