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LMU - HHSC 198 Ch6
Urinary System
| Term | Definition |
|---|---|
| Amino acid | The basic building block for protein |
| Ammonia | Toxic breakdown product of amino acids |
| Bladder | Hollow sac that holds fluid |
| Kidney | Organ of excretion |
| Nephr/o | kidney (ex. Nephrology) |
| Ren- | Kidney (ex. renal) |
| Urea | End product of nitrogen metabolism |
| Urethra | Canal leading from bladder to outside |
| Ureter | Tube that connects kidney to the urinary bladder |
| Urine | Fluid and dissolved substances excreted by kidney |
| Ur/o | Urinary System |
| Location of Left Kidney | Behind spleen |
| Location of Right Kidney | Behind and below liver |
| 3 regions of kidney | Cortex Medulla Pelvis |
| Cortex of Kidney | Contains about a million nephrons The basic filtration unit of the kidney |
| Medulla of Kidney | Contains the collecting ducts which form papillary ducts, that enter into a calyx |
| Pelvis of Kidney | Funnel shaped structure that the calyces go into and turns into the ureter |
| Glomerular capsule is also known as (glomeruli) | The Bowman capsule |
| T/F The glomerular capsule is permeable (glomeruli) | T |
| The glomerulus is a network of (glomeruli) | Approximately 50 capilaries |
| The loop of Henle is also called______ It does_______ | The nephron loop. It is part of the renal tubule where reabsorption occurs |
| Filtrate entering the renal tubule contains | Water, urea, glucose, electrolytes, amino acids, and vitamins |
| As the filtrate passes down the renal tubule, over ___% of the water is returned to the blood by reabsorption | 90% |
| Urine consists of | Excess water, electrolytes, and urea |
| Calyx (Calyces) | Funnel-shaped structure |
| Cortex (Cortices) | Outer portion of an organ |
| Hilium (Hila) | Part where nerves and blood vessels enter and leave an organ |
| Nephron | Filtration unit of the kidney glomerulus + renal tubule |
| Permeable Semipermeable Impermeable | Allowing passage of substance through a membrane. Freely permeable to water but not to solutes. When nothing is allowed passage |
| Renin | Enzyme secreted by kidney that causes vasoconstriction |
| Nephrolithiasis | Kidney Stones |
| Calculus (Calculi) | Small stone |
| Extracorporeal | Extra- outside -corpor/e body -al pertaining to Outside of the body |