Chapter 5 (page 25) Flashcards
Organs that can affect the pH levels in the body.
Kidneys
More acids than base usually enters the blood
therefore:
more acids than bases are usually excreted by the blood.
What is the pH of urine?
Acidic
What tubules of the Kidneys rid the blood of excess acid and at the same time conserve the base in the blood?
Distal tubules
CO2 leaves the blood and enters __________ . Inside these cells, CO2 forms __________ . Some carbonic acid dissociates to yield _________ and ___________ .
Kidney tubule cells
carbonic acid
hydrogen ions
bicarbonate ions
What ions diffuse out of tubular cells into urine, then replace sodium ions in salt to form another salt, which leaves the body in the urine?
hydrogen Ions
What happened to sodium after displaced by the hydrogen ions?
Sodium leaves the urine and enters the tubular cells. It then combines with bicarbonate ions to form sodium bicarbonate (which is reabsorbed
into the blood).
Two kinds of pH or acid-base imbalances.
Acidosis and Alkalosis
The blood pH falls as the Hydrogen ion concentration increases. pH falls below 7.35.
Acidosis
What is Alkalosis?
Alkalosis - The blood pH is higher than normal. pH rises above 7.45.
These acid-base balance disturbances can be considered ________ upon the ratio of carbonic acid and sodium bicarbonate present in the blood.
dependent
Normal Ratio between Sodium bicarbonate and Carbonic acid.
20:1 ( 20 - Sodium bicarbonate )
( 1 - Carbonic acid )
Sodium bicarbonate blood levels are regulated by what organs?
Kidneys
Carbonic acid levels are regulated by the what system?
Respiratory system.
Disturbances that affects the Bicarbonate element of the buffer pair.
Metabolic disturbances