Cardiovascular Phys - Functions and Muscle - Blue Book Flashcards

1
Q

Heart pumps ______ L/min in a 70 kg man.

A

5-6 liters/minute

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2
Q

Endocrine response to increased atrial pressure.

A

ANP - Atrial Natriuretic Peptide

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3
Q

Endocrine response to overstretched ventricles:

A

BNP - B-type Natriuretic Peptide

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4
Q

Does cardiac muscle have striations?

A

Yes, cross striations

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5
Q

Describe cardiac muscle.

A

Involuntary, cross striations,
intercalated dices –> syncytium
Gap junctions –> passage of ions –> action potential spread

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