Page 152 - Color_Atlas_of_Physiology_5th_Ed._-_A._Despopoulos_2003

A. Factors that affect the blood pH

Dietary intake
pH, pH Buffers, Acid–Base Balance
and metabolism

– + –
HCO 3 H CO 2 OH CO 2

Plate 6.1
H 2 O CO 2 HCO 3 –

Non-bicarbonate
buffers
Henderson-Hasselbalch equation
–
Hemoglobin, [HCO 3 ]
+
plasma – log [H ] = pH = pK a + log ______
proteins, [CO 2 ]
phosphates,
etc.

CO 2
Respiration
+
–
2HCO 3 + 2NH 4 Urea, etc.
Liver
Kidney

+
– NH 4
HCO 3 or
H +
– 139
as H 2 PO 4
Despopoulos, Color Atlas of Physiology © 2003 Thieme
All rights reserved. Usage subject to terms and conditions of license.