Download MBBS Physiology Presentations Tubular Reabsorption and Secretion Lecture Notes

Download MBBS (Bachelor of Medicine, Bachelor of Surgery) 1st Year, 2nd Year, 3rd Year and Final year Physiology Tubular Reabsorption and Secretion PPT-Powerpoint Presentations and lecture notes

Tubular Reabsorption and

Secretion

Tubular reabsorption

? It is quantitatively large and highly

selective

? It includes both active and passive

mechanisms

? Primary active transport
? Secondary active transport
Substances actively reabsorbed

and follow transport maximum

? Glucose
? Phosphates
? Sulfate
? Amino acids
? Urate
? Lactate
? Plasma proteins
Substances actively secreted

and follow transport maximum

? Creatinine

? Para-amino Hippuric Acid (PAH)
? PCT secretes
? Bile acids
- Oxalate
- Urate
- Catecholamines


Clearance tests to quantify renal

function

? Clearance rate (C S) = U S ? V/ PS

? GFR = Uinulin ? V/ Pinulin

? Clearance ratio = C S/ Cinulin

? ERPF = CPAH

? RBF = RPF/ 1 ? Hematocrit
? Excretion rate = US ? V