Respiratory Flashcards

1
Q

Air from the nose to terminal bronchioles that does not undergo gas exchange

A

Anatomic dead space

Normal value: 150ml

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2
Q

Air in the respiratory unit of the lung that does not undergo gas exchange due to V/Q mismatch

A

Alveolar dead space

0ml

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3
Q

Anatomic + alveolar dead space

A

Physiologic dead space

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4
Q

Functional anatomic unit of the lung

A

Bronchopulmonary segments

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5
Q

Type of pneumocyte for gas exchange

A

Type 1

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6
Q

Type of pneumocyte for surfactant production

A

Type II

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7
Q

Produces protective GAGs and metabolize air-borne toxins

A

Clara cells/ club cells

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8
Q

Alveolar macrophages

A

Dust cells

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9
Q

What equation to use in physiologic dead space

A

BOHR equation

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10
Q

Maintains oxygenation in b/w breaths

A

Residual volume

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11
Q

Equilinrium/resting volume of the lung

A

Functional residual volume

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12
Q

Marker for lung function

A

Functional residual volume

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13
Q

Cannot be measured by spirometry
1.
2.
3.

A

RV
FRC
TLC

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14
Q

Remains in the lungs after a tidal volume is expired

A

FRC

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15
Q

Remains in the lungs after a maximal expiration

A

Residual volume

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16
Q

Primary drive to breath in COPD pts

A

Hypoxic drive

17
Q

Restrictive lung disease with decreasing diffusing capacity of the lung

A

Pumonary fibrosis

18
Q

Muscle in normal inspiration

A

Diaphragm

19
Q

Muscles in forced inspiration

A

External intercostals

Accessory Muscles