Lung Physiology Flashcards

1
Q

What is starlings equilibrium

A

At capillaries, pressure forces blood out, oncotic pressure in

Excess taken away by lymph

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2
Q

What affects Starlings equilibrium

A

HF - Increased Venous pressure

KF - Protein lost so less oncotic pressure

LV - Less proteins made so less oncotic pressure

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3
Q

What is the oxygen dissociation curve?

A
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4
Q

What does haemoglobin look like?

A
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5
Q

Where in the lung is there more oxygen and why?

A

The top, due to higher ventilation and less perfusion

At the bottom both increase, but perfusion is now greater than ventilation

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6
Q

What can massively increase ventilation without perfusions

A

bleb

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7
Q

What can reduce ventilation compared to perfusion

A

COPD, Asthma

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8
Q

where does DPG force the oxygen dissociation curve?

A

Right

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9
Q

What is the bohr effect?

A

Oxygen association is inversely related to Co2 or H ions

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