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Digestive &Excretory

Digestive and Excretory System

TermDefinition
Digestive System Breakdown of molecules into smaller in order to get nutrient
Mechanical Digestion Physically breaking down food into smaller pieces
Chemical Digestion Chemically breaking down food into smaller pieces
Examples of Mechanical Digestion Chewing
Examples of Chemical Digestion Enzymes
Mouth / Oral Cavity Physical digestion by chewing and chemical digestion of starch
Salivary Glands Saliva contains amylase
Amylase Enzymes that break down starch
Esophagus Food travels from the mouth to the stomach
Peristalsis Muscular contractions that pushes food down to the stomach
Stomach An acidic environment that contains pepsin and hydrochloric acid
Pepsin Enzyme that breaks down proteins
HCl Hydrochloric acid
Small Intestine Where most of the chemical digestion occurs and is completed
Villi In the small intestines absorbs nutrients through diffusion
Large intestine Where the absorption of water occurs
Rectum Stores feces
Anus Where feces is egested out of the body
Liver Produces bile
Bile Breaks down fat
Gallbladder Stores bile
Pancreas Secretes enzymes into the small intestine
Ulcers Mucus lining in an area on the stomach breaks down
Constipation Too much water is absorbed in the large intestine
Diaherra Too little water is absorbed by the large intestine
Gallstones Small hard deposits left in the gallbladder
Appendicitis Inflammation of the appendix
Excretory System Removes cellular or metabolic waste from the body
Lungs Excretes Carbon Dioxide and Water Vapor
Skin Excretes water, urea, and salt in sweat and removes excess heat
Perspiration Sweat
Liver Produces urea and detoxifies blood
Detoxify Remove poisons
Kidneys Filter waste and regulates concentrations of substances in the blood
Kidneys (Urinary System) Produces urine
Ureters Transport urine from the kidneys to the bladder
Urinary Bladder Stores urine
Urethra Leads urine out of the body
Gout Production & accumulation of uric acid in the joints
Cirrhosis of the Liver Scar tissue replaces normal, healthy tissue
Kidney Stones Substances that crystallize out of the urine
Kidney Failure The build up of excess fluid and waster in the blood
Dialysis Blood flows through machine where blood is filtered and returned back to the body
Created by: CMacKay16