Excretion Topic 11.3

Excretion definition: ,[object Object],[object Object],[object Object],[object Object]

Role of the kidney in excretion and the maintenance of water balance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Human Kidney ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],Three regions to the kidney

Structure of a glomerulus and associated nephron ,[object Object],[object Object],[object Object],[object Object],[object Object]

3 Parts to the Nephron ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ultrafiltration, Selective Reabsorption and Urine formation

Ultrafiltration : formation of kidney filtrate

Ultrafiltration : formation of kidney filtrate ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object]

Alternative diagram of the podocyte/ arteriole structure: ,[object Object],[object Object]

B. Proximal Convoluted Tubule Selective Reabsorption ,[object Object],[object Object],[object Object]

Proximal Convoluted Tubule ,[object Object],[object Object],[object Object],[object Object],Note that the PCT has a microvilli cell border to increase the SA for absorption from filtrate. There are also a large number of mitochondria which produce the extra ATP required for active transport.

C. Loop of Henle and Collecting Duct (Urine Formation) ,[object Object],[object Object],[object Object]

Loop of Henle and Collecting Duct in the control of water balance ,[object Object]

[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

Osmoregulation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Composition of blood and renal fluids

Kidney Dialysis (Passive Diffusion) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Excretion Topic 11.3

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Excretion Topic 11.3