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Digestive/Urinary System Ana Cendejas Period:7 -…
Digestive/Urinary System Ana Cendejas Period:7
Functions of Urinary system
Elimination of waste products like toxins,drugs and nitrogenous wastes
Regulates aspects of homeostasis
Volume and chemical makeup of the blood
Water and electrolyte balance
Acid base balance in the blood
Produce hormones
Renin- regulates blood pressure and kidney function
Erythropoietin- red blood cell production
Organs of digestive system
Liver- helps maintain concentration of blood glucose levels, metabolizes proteins
Tongue- moves and mixes food with saliva
Gall bladder- concentrates and stores bile
Teeth- breaks down food
Pancreas- secretes pancreatic juice into duodenum
Mouth- opening for food and food enters the mouth
Lips- keeps food in mouth
Salivary glands- keeps oral cavity moist
Pharynx- passage for food from mouth to esophagus
Esophagus- passageway only for food and connects pharynx to stomach
Stomach- mixes and holds the food
Small intestine- absorption of water and nutrients
Large intestine- absorption of water and salts
Functions of Digestive system
Breakdown and absorption of food for metabolism
Mechanical digestion- physical breaking of large food pieces into smaller pieces
Chemical digestion- Breaks food into simpler chemicals that can be absorbed by cells in the body
Glycosuria- diabetes mellitus
Proteinuria- non- pathological: excessive physical exertion
Hemoglobinuria- transfusion reaction, hemolytic anemia
Bilirubinuria- liver disease
Hematuria- bleeding
Pyuria- urinary tract infection
Organs of Urinary system
Kidneys- filters about 200 liters of fluid daily
Ureters- transports urine from kidney to bladder
Urinary bladder- temporary storage reservoir for urine
Urethra- transports urine from bladder to the external environment
Digestive enzymes
Carbohydrates: Amylase-poly->di
Peptidase reduce peptides to amino acids
Maltase reduces maltose to glucose
Lactase reduces lactose to glucose and galactose
Sucrase reduces sucrose to glucose and fructose
Nuclease-> nucleotides
Lipase reduces fats into fatty acids and glycerol
Layers of GI
Mucous membrane- produces mucus for reduction of friction and protections
Submucosa- Areolar connective tissue and has many elastic fibers
Muscularis layer- has two layers of smooth muscles to allow peristalsis and segmentation
Serosa- Areolar connective tissue and simple squamous epithelium and produces serous fluid
Disorders of digestive/urinary systems
Hepatitis- inflammation of the liver
Cirrhosis- a chronic inflammation of the liver usually resulting from alcoholism or chronic hepatitis
Nephron anatomy
Structural and functional units of kidneys
responsible for forming urine
consists of Glomerulus and renal tubule