Ch 18 Gastrointestinal and Urologic Emergencies Flashcards
Solid organs
Liver, Spleen, Pancreas, Kidneys, Ovaries
Trauma can cause shock and bleeding because these organs are very vascular
Hollow organs
Stomach, Gallbladder, Ureter, Small intestine, Large intestine, Fallopian tubes, Urinary bladder, Uterus
Trauma may cause contents of the organ to leak and contaminate the abdominal cavity
Retroperitoneal organs
Kidneys, ovaries, pancreas
Retroperitoneal
Behind the peritoneum
Role of the liver
Assists digestion by secreting bile, which aides the digestion of fats; Filters toxic substances produced by digestion, creates glucose stores and produces substances necessary for blood clotting
Role of the gallbladder
Reservoir for bile
Role of the small intestine
Duodenum - Digestive juices from pancreas and liver mix together
Jejunum - Absorption of digestive products (most surface area and work)
Ileum - Absorbes nutrients not absorbed earlier, bile to be returned to the liver, and vitamin B12
Role of the pancreas
Secretes juices containing enzymes that help break down starches (such as amylase), fats and proteins; produces bicarbonate and insulin
Bicarbonate neutralizes ____
The acids in the duodenum
Role of the colon/large intestine
Food that wasn’t broken down moves to the colon; Movement called peristalsis moves waste matter, water is absorbed and stool is formed, and defecated through the rectum and anus
Role of the spleen
Part of the lymphatic system and assists filtration of blood, aids development of red blood cells, serves as a reservoir for blood; Produces antibodies to help fight disease and infection
The urinary system
Controls the discharge of certain waste materials filtered from the blood by the kidneys; Often considered hand in hand with the reproductive system since may organs are shared/can directly affect the each other
Role of the kidneys
Help with the regulation of acid balance/pH and blood pressure; Rid the body of toxic wastes (through blood and urine), control the body’s balance of fluids and electrolytes; Removal of sodium chloride tied to BP
~20% of output of blood passes through kidneys each minute and large vessels attach them directly to the aorta; Kidney disease is a common cause of hypertension
Role of the ureters
Small tubes pass from the renal pelvis of each kidney to drain into urinary bladder with peristalsis
Peristalsis
Wavelike contraction of smooth muscle
Peptic Ulcer Disease
PUD; When the protective layers of mucus in the stomach and duodenum erode, allowing acids to eat at the organ itself; affects M and W, and occurs in older population
Most are a result of infection with H. Pylori, or chronic NSAID use (Common in geriatric pop.)