Page 192 - Color_Atlas_of_Physiology_5th_Ed._-_A._Despopoulos_2003
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A. Reabsorption of phosphate, Ca and Mg 2+
2+
1 100 Mg 2+
Filtrate
80
Ca 2+
% of filtered amount 40 Phosphate Late proximal Early distal Reabsorption and Excretion of Phosphate
60
Control range
20 Final urine 5–20%
3–8%
0.5–3%
0 Plate 7.16
3 Phosphate transport
Lumen Proximal tubule cell ? Blood 2
P i
Na +
PTH
Down regulation 2+
Phosphate
P i Ca
Insertion
Mg 2+
P i deficit
Alkalosis
Hypercalcemia
2+
4 Ca and Mg transport
2+
Lumen Ca 2+ Blood
Mg 2+
a
Proximal tubule and
thick ascending
limb of Henle’s loop 3Na +
Ca 2+
Mg 2+
b 179
Distal tubule
Despopoulos, Color Atlas of Physiology © 2003 Thieme
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