HHP 3500 Lecture 39: Renal System Anatomy and Function 1
13 Nov 2016
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Document Summary
Structure of urinary system: 2 kidneys-regulation of blood volume and concentration; excess solute/waste or excess plasma volume can be added to water in kidneys. Adrenal gland-gland that sits on top of kidneys, composed of adrenal cortex(hormones) and adrenal medulla (epinephrine and norepinephrine) Renal capsule- connective tissue covering the kidneys. Hilum-indentation in renal capsule, site of renal artery entry and sympathetic neuron entry, and site of renal vein and ureter exits. Renal cortex- outermost region of the kidney. Renal pyramids renal calyx renal pelvis- pathway of urine after formed in nephron. Renal pelvis-funnel that collects all the urine: 2 ureters-transport urine to bladder, bladder-storage tank of urine, urethra-urine elimination. Kidney function: to filter the blood by regulating plasma volume (5l) and plasma composition (na, k, glucose, ph, functional unit = nephron. Kidneys receive 20% of the blood at rest, so all the blood is filtered every 5 minutes.
