PHYS 1010 Lecture Notes - Lecture 4: Afferent Arterioles, Distal Convoluted Tubule, Renal Artery
22 Feb 2019
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7. 5: formation of urine: there are three steps to the formation of urine: Filtration: movement of fluids from the blood into the bowman"s capsule. Reabsorption: the transfer of essential solutes (like glucose, amino acids) and water from the nephron and back into the blood. Out of the nephron, it secretes h+ ions which controls the ph of blood (maintains blood ph) In the inner medulla of the kidney, urea from the collecting duct leaks into the tissues and it creates a hypertonic solution (high solute outside of cell, more water inside) Both water and salt need to travel out the filtrate. Water will only diffuse out when there is a higher concentration of salt in the ecf but in that case, salt will not diffuse out due to concentration gradient. Ascending limb of loop of henle: the ascending limb of loop of henle is permeable to salt, resulting in the diffusion of.
