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Lungs & Blood Flashcards

1
Q

What is the normal volume of air displaced between normal inhalation & exhalation when no extra efforts is applied?

A

500 mg TIdal volume

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2
Q

What is vital capacity?

A

IRV + ERV+ TV

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3
Q

The pressure on a mountain in 250 mmHG, what’s the partial pressure of O2?

A

20% –> 50 mmg

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4
Q

What’s the epithelium of respiratory tract?

A

Pseudostratified ciliated columnar epithelium with globet cells

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5
Q

Stretch receptors (Hering-Breuer reflex) of the lung is carried by which nerve?

A

Vagus

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6
Q

What produces mucous in lungs?

A

Clara cells

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7
Q

What happens in obstructive lung disease?

A

Compliance is increased

decreased in restrictive

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8
Q

In which can we see more squamous epithelial metaplasia?

A

Bronchus

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9
Q

Which organ is most likely to undergo red infarction?

A

Lung

white affects solid organs; red affects loose organs

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10
Q

What can emphysema lead to?

A

respiratory acidosis

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11
Q

Hyperventilation can lead to?

A

alkalosis

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12
Q

MEtabolic acidosis is caused by?

A

Hyperventilation

REMEBER RUBMUB

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13
Q

After metabolic/respiratory acidosis, which abnormality of electrolyte is more likely?

A

hyperkalemia

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14
Q

When is intrapleural pressure the most negative?

A

end of expiration

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15
Q

When is alveoli pressure the most negative?

A

Beginning of inhalation

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16
Q

What kind of epithelium is found in the nasopharynx region?

A

Ciliated pseudostratified columnar epithelium

17
Q

Infant has trouble breathing, what cells are causing the problems?

A

Type 2 pnemonocytes

18
Q

What describes oxygen transport?

A

Bohr effect

19
Q

What is true about myoglobin?

A

Graph is hyperbolic

20
Q

Carotid body measures?

A

Partial pressure of O2

21
Q

CO decreases ___content but ___is normal

A

O2, PO2

22
Q

Patient is on nitrous, best way to measure efficiency?

A

Reserve minute volume

23
Q

Mineral for coagulation?

A

Zinc & Ca2

24
Q

What carries iron in the plasma?

A

transferrin

25
Q

Prothrombin acts with which one to form thrombin?

A

Ca2+

26
Q

What is the substrate of thrombin?

A

Fibrinogen

27
Q

If we put RBC in hypotonic solution what happens?

A

hemolysis

28
Q

AntiA & antiB both agglutinate, what blood type?

A

AB

29
Q

Which one of these help in retraction of blood clots?

Boy bleeds during extraction, his maternal uncle & cousin have the same problem, which factor is involved?

A

Factor 8 (Hemophilia A)

30
Q 
Hemophilia B (Christmas disease) is due to what deficiency?
hemophilia C?
A

Factor 9

Factor 11

;) (24 decks)

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