pH balance of blood Flashcards

1
Q

what is the range of blood pH

A

7.35-7.45

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2
Q

what pH is acidosis considered and why is it dangerous

A

<7.35

dangerous b/c it can denature proteins and less excitability of neurons

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3
Q

what pH is alkalosis considered and what are the effects

A

> 7.45 it caused neurons to be more excitable

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4
Q

what are the three biggest regulators of blood pH

A
  1. blood buffers
  2. respiratory system
  3. renal system
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5
Q

describe the function of blood buffers

what are some of the buffers

A

do NOT change the pH of blood only stabilize it

buffers include: hemoglobin, plasma proteins, phosphate ions

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6
Q

what does the respiratory system regulate and how

A

CO2 (biggest source of acid) via ventilation rates

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7
Q

what is the pathway of CO2

A

chemoreceptors (aorta and carotid) -> medulla -> diaphragm contraction (phrenic nerve)

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8
Q

how does the renal system regulate blood pH

A

controlling [H+] and [HCO3-] in the plasma

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9
Q

how does the renal system control the [H+] and [HCO3-] in the plasma

A

via H+ secretion and HCO3- reabsorption

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