Human Digestive System: Digestion Process, Disorders of the Human Digestive System
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Digestion Process
The process of digestion begins from the mouth.
The process ends in the small intestine.
The large intestine absorbs the remaining water from the undigested food.
The food particles while traveling through various compartments of the gastrointestinal tract get digested.
Areas of the Stomach

Areas of the Stomach
Disorders of the Human Digestive System

Disorders of the Human Digestive System
Mucous
It is a slippery aqueous secretion produced by, and covering, mucous membranes.
It is typically produced from cells found in mucous glands.
It may also originate from mixed glands, which contain both serous and mucous cells.
Digestive Enzymes
These enzymes function by breaking down polymeric macromolecules like biopolymers.
These enzymes speed up the breakdown or hydrolysis of food molecules.
Digestive juices and enzymes | Digested Substance | Formed Product |
Bile from the liver (Bile salts) | Fats globules | Fat droplets |
Saliva (Amylase) | Starch | Maltose |
Gastric Juice | Proteins | Partly digested proteins |
Hydrochloric Acid
It is the digestive fluid formed by the stomach.
It destroys harmful microorganisms present in the food particles.
Examples of Specific Enzymes
Lipases
A group of enzymes that help digest fats in the gut.
Amylase
It helps change starch into sugars.
Maltase
It breaks the sugar maltose into glucose.
Trypsin
It breaks proteins into amino acids.
It is found in the small intestine.
FAQs
Q 1. What are the main disorders of the Human Digestive System?
Answer:
The main disorders of the Human Digestive System are:
i) Vomiting
ii) Diarrhea
iii) Constipation
iv) Indigestion
Q 2. What are the parts of the Human Digestive System?
Answer:
Eight parts of the Human Digestive System are:
i) Mouth
ii) Pharynx
iii) Oesophagus
iv) Stomach
v) Small Intestine
vi) Large Intestine
vii) Rectum
viii) Accessory Organs
Q 3. What are the two major parts into which digestive system can be divided?
Answer:
Digestive system is divided into two major parts:
i) The digestive tract (alimentary canal) is a continuous tube with two openings.
ii) The mouth and the anus.