The Excretory/Digestive Systems

Function of the Digestive System

The digestive system takes food in where enzymes break the food down into smaller molecules and then absorbing all of the available nutrients.

Define digestion: the process of breaking down food by mechanical and enzymatic action into substances that can be used by the body.

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Major Disorders that Occur Within the System

Ulcerative Colitis

Ulcerative Colitis is a bowel disease that causes inflammation in the digestive tract.


Signs and Symptoms: pain in the rectum, constipation, diarrhea, bloating, blood in stool, cramps, anemia, fever, etc...


Prevalence: 8 to 246 cases per 100,000 per year


Treatment Options: medication, partial colon removal, full colon removal with colostomy bag

Celiac Disease

Celiac disease is an immune reaction to eating gluten


Signs and Symptoms: indigestion, fat in stool, vomiting, discomfort, cramping, nausea, bone loss, slow growth, malnutrition, etc


Prevalence: 200k-3M US cases per year


Treatment Options: folic acid, gluten-free diet

Function of the Excretory System

The excretory system helps maintain homeostasis by removing non-solid waste from the blood

Define excretion: (in living organisms and cells) the process of eliminating or expelling waste matter.

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Major Disorders that Occur Within the System

Kidney Stones

Kidney stones are crystals made up of uric acid that bundle up in the kidneys, they are painful and cause the kidneys to not function correctly.


Signs and symptoms: pain while urinating, frequent urination, blood in urine, sweating, nausea


Prevalence: 200k-3M US cases per year


Treatment Options: surgery, pass them through urination

Urethritis

Urethritis is an inflammation of the urethra caused by a bacterial infection


Signs and Symptoms: difficulty urinating, itching, pain, discomfort when not urinating, pain during sexual intercourse


Prevalence: 4M US cases per year


Treatment Options: antibiotics