Epithelial Transport

jessica.neilan
Mind Map by jessica.neilan, updated more than 1 year ago
jessica.neilan
Created by jessica.neilan about 7 years ago
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The Kidneys Mind Map on Epithelial Transport, created by jessica.neilan on 26/05/2013.
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Epithelial Transport
1 Transporters set up multiple gradients which drive paracellular and transcellular movement
1.1 Oncotic, Chemical and Voltage gradients
2 Epithelia cells isolate the internal environment from the external environment and regulate the movement of solutes and water to and from the body
2.1 2 Types of epithelia: absorptive and secretive
2.2 The assymetrical distribution of carriers in the seperate membranes of the cells allows vectorial transport to take place
3 Tight junctions seperate the basolateral and apical membrane of the cell, hold the cells together and reflect solutes and water
3.1 TIGHT: prevent significant movement of molecules between cells, high transepithelial potential difference, can withstand high osmotic gradients and found distally
3.1.1 LEAKY: prlow transepithelial potential difference
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