Anatomy and Cell Biology 3309 Lecture Notes - Lecture 20: Proximal Tubule, Renal Corpuscle, Renal Calyx
9 Feb 2017
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Document Summary
Functions: to clear the blood of the waste products of metabolism to regulate the concentrations of many constituents of the body fluids. Consists of 2 kidneys and excretory passages to store and conduct excreted materials. Bean shaped, lie in retroperitoneal space on the posterior aspect of the abdominal cavity. Surrounded by capsule, divided into cortex and medulla. Nephrons - functional units in which blood undergoes ultrafiltration & reabsorption. A large excretory duct which passes from the hilus to the bladder. The upper expanded end of the ureter which fills the hilus. A conical protrusion of renal substance enveloped by a minor calyx. 8-12 pyramids in the medulla with tips projecting into calyx. Cortical tissue extending into the medulla between pyramids. Medullary material extends into the cortex as fine radial rays. A pyramid with its associated overlying cortex. All nephrons draining into a collecting duct. Has a medullary ray at its centre interlobular arteries lie between the lobules.
