The Urinary System. By Alex Dupille & Emmanuel Rivera. What is the urinary system?. The urinary system also known as renal system. -Produces, stores, and eliminates urine -Kidney filters blood to keep clean -Metabolic waste -Toxins -Excess water -Dispose of nitrogenous waste
By Alex Dupille & Emmanuel Rivera
-Produces, stores, and eliminates urine
-Kidney filters blood to keep clean
-Dispose of nitrogenous waste
-Urea, Uric Acid, and Creatinine
-Works with the lungs, skin, and intestines to maintain balance of water and chemicals in the body
and ureter meet at the hilus.
~Renal medulla- has masses of tissue called renal pyramids
~Renal Cortex- Forms a shell around the medulla and between the renal pyramid, forming renal columns.
~ Renal Columns- Carry blood vessels to renal cortex
~Renal pyramids-Urine runs through small tubules collecting ducts which run down through here. Also it meets minor calyx
~Also runs through renal papilla before meeting the minor calyx in the renal pyramid.
~Minor calyx leads to major calyx which in turn empties into the renal pelvis.
~Urine in renal pelvis then into the ureter which leads into the bladder.
~Proximal Convoluted tubule-Drains bowman's capsule and complete absorption of nutritional importance substances takes place
~Loop of Henle-Reabsorbs water and ions from the urine and plays a role in controlling concentration of urine
~Distal convoluted tubule-Regulates potassium, sodium, and pH and where further dilution takes place.
~Collecting duct-Joins with other tubules, which collects filtrate Also where final sodium regulation takes place.
-Traces of amino acids
-Variety of electrolytes
-Varies with the diet
-Mucous coat-(Inner layer)Lining with renal tubules and urinary bladder
-Muscular coat-(Middle layer)Smooth muscle fibers also
-Fibrious coat-(Outer layer)Connective tissue