Some parts of the digestive system include:

- Mouth/Oral cavity
- Accessory Digestive Organs
- Pharynx
- Esophagus 
- Stomach
- Small Intestine
- Large Intestine
- Rectum 
- Anus

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Anatomy of the Digestive System

Despite defenses against them, some microbes continue to inhabit the mouth which can lead to diseases and infections including:

- Dental Caries
- Peridontal Disease
- Oral Thrush
- Herpetic Gingivostomatitis
- Mumps

Microbial Infections of the Mouth and Oral Cavity

Common bacterial infections of the GI tract include:

- Staphylococcal Food Poisoning
- Shigellosis (Bacillary Dysentery)
- Salmonellosis
- Typhoid Fever
- *E. coli* Infections
- Cholera and Other Vibrios
- Campylobacter jejuni Gastroenteritis
- Peptic Ulcers
- Clostridium perfingens Gasteroenteritis
- Antibiotic-associated diarrhea
- Foodborne Illness Due to Bacillus cereus
- Foodborne Illness Due to Yersinia

Bacterial Infections of the Gastrointestinal Tract

Some viral infections of the GI tract include:

- Gastroenteritis
- Hepatitis

Viral Infections of the Gastrointestinal Tract

The digestive system, or gastrointestinal (GI) tract, helps the body digest and process food, starting with the mouth and ending at the anus. The digestive system is vulnerable to pathogenic attacks, hence GI diseases are quite common. Such diseases include those caused by infection or intoxication, the former often being caused by contaminated food and water.

University of Notre Dame

- Skin & Eye
- Respiratory System 
- Urogenital System 
- Digestive System 
- Circulatory System
- Lymphatic System
- Nervous System
- Immune System

Body Systems Affected by Disease

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Skin & Eye

The urogenital system is a term for the urinary and reproductive systems in human anatomy.
- Urinary Tract
- Reproductive system 

Urogenital system

Digestive System

A closed system of organs and vessels that circulate blood around the body to deliver oxygen, nutrients, and immune factors to tissues and to carry out waste products.

Circulatory System

A network of  vessels that manages fluid levels within the body, produces immune cells that combat infection, and filters out foreign bodies.

Lymphatic System

The respiratory system is responsible for bringing oxygen into the body and removing carbon dioxide from it. It includes the nose, lungs, and other structures involved in breathing and gas exchange.

Respiratory System

A human's nervous system is in charge of managing our cognitions, movements, and responses. It is comprised of billions of neurons, glial cells, and the central and peripheral nervous systems. 

Nervous System

An autoimmune disease is a condition that arises when the immune system malfunctions, erroneously identifying the body's own healthy cells as foreign invaders and launching repeated attacks against them. The specific effects of an autoimmune disease vary depending on which part of the body is targeted by the immune response.

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