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The Digestive & Urinary System Sara Abad Period:4 - Coggle Diagram
The Digestive & Urinary System Sara Abad Period:4
Major Functions
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Digestive System-takes in food, breaks it down into nutrient molecules, absorbs the molecules into the bloodstream, and then rids the body of indigestible remains as feces
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Digestive Enzymes
Bile: fat emulsifier breaking fat into tiny particles Amylases:begins breakdown of startch Brush Border Enzyme: carbohydrate and protein digestion Chief Cells:digests 15% of lipids Enteroendocrine Cells:secrete chemical messenders Parietal Cells: breaks down plant walls, kills bacteria, and absorbs vitamin B
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Nephrons
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Renal Corpuscle Has a Glomerulus (tuft of capillaries) that are highly porous to help filtrate and a Glomerular Capsule with a surrounding bowman's capsule allowing filtration slits to filtrate into capsular space
Renal Tubule contains a Proximal Convoluted Tubule with brush border functioning in reabsorption and secretion to cortex, Nephron Loop producing urine out of collecting duct, and Distal Convoluted Tubule function in secretion to the cortex for the collecting ducts
Disorders
Urinary System
Chronic Renal Disease filtrate formation decreases and nitrogenous wastes accumulate in the blood Renal Failure filtrate formation decreases or completely stops Urinary Tract Infection infection of the urinary urethra caused by bacteria Urinary Incontinence weakened pelvic muscles causing inability to control urination Urinary Retention narrowed urethra causing the bladder to be unable to expel contained urine
Digestive System
Peritonitis inflammation of the peritoneum leaking stomach juice into the peritoneal cavity Heartburn stomach acid regurgitates into the esophagus Hiatal Hernia abnormal relaxation of the gastroesophageal sphincter making the stomach protude above the diaphragm Gastric Ulcer caused by inflammation of the stomach wall Gallstones cholesterol crystallized Appendicitis blockage in the appendix trapping bacteria in its lumen Irritable Bowel Syndrome functional GI disorder with persistent pain until defecation