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Exercise Physiology > Pulmonary > Flashcards

Pulmonary Flashcards

1
Q

What is the movement of ambient air into and out of the lungs?

A

Ventilation

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2
Q

What moves ambient air across lung into blood?

A

Diffusion

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3
Q

What is oxygen consumed and utilized by the body?

A

Oxygen Consumption

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4
Q

What is the amount of air inspired and expired in a normal breath?

A

Tidal Volume (TV)

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5
Q

What is the maximum amount of air inspired at the end of normal tidal volume expiration ( TV + IRV )

A

Inspiratory Capacity (IC)

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6
Q

What is the maximum amount of air expired following a maximal inspiration (IRV + TV + ERV)

A

Forced Vital Capacity (FVC)

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7
Q

What muscles contract at during “inhalation” at rest?

A

Diaphragm

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8
Q

What muscles contract during “inhalation” during exercise?

A

Diaphragm
External Intercostals
Scalenii

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9
Q

What muscles contract during “Exhalation” at rest?

A

None

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10
Q

What muscles contract during “Exhalation” during exercise?

A

Internal Intercostals

abdominals

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11
Q

What area of the brain is considered the “Control Center” for ventilation?

A

Medulla

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12
Q

What is shortness of breath or subject distress in breathing?

A

Dyspnea

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13
Q

What is the increase in pulmonary ventilation that exceeds the oxygen needs of metabolism?

A

Hyperventilation

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14
Q

What is the amount of air the subject breaths in and out in one minute?

A

Minute Ventilation VE

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15
Q

What is the mathematical formula for VE?

A

VE = RR x TV

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16
Q

What gases makes up normal ambient air?

A

Nitrogen
Oxygen 20.93%
Carbon Dioxide

17
Q

What is the total pressure of ambient air on a normal day at sea level?

A

760mmHg

18
Q

What are partial pressures?

A

= % Concentration x Barometric pressure

19
Q

What happens to the partial pressure of oxygen PO2 as it moves from ambient air through the trachea and into the alveoli?

A

The air pressure in the trachea decreases, making it 713 mmHg and it is humidified/warmed, as it leaves into the alveoli the pressure is the same (713mmHg) but the gas concentrations change

20
Q

What are the 4 main things that affect the Bohr Effect?

A

Decreased PO2
Increased Temperature
Increased PCO2
Decreased pH

21
Q

What are two ways that Oxygen (O2) is transported in the blood?f

A

Physical solution

Combined with hemoglobin

22
Q

What are three ways in which carbon dioxide (CO2) is transported in the blood?

A

Physical solution
As carbamino compounds
As bicarbonate

Exercise Physiology (5 decks)

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