How Well Do You Know Your Digestive System?

Study Notes

The Digestive System

Food needs to be crushed and wetted in order to pass smoothly through the digestive tract.
Saliva, secreted by salivary glands, contains an enzyme called salivary amylase that breaks down starch into simple sugars.
Peristaltic movements, rhythmic contractions of muscles in the canal, move food along the digestive tube.
The stomach mixes food thoroughly with digestive juices and contains gastric glands that release hydrochloric acid, pepsin, and mucus to aid in digestion.
The sphincter muscle regulates the exit of food from the stomach into the small intestine.
The small intestine is the site of complete digestion of carbohydrates, proteins, and fats, and receives secretions from the liver and pancreas.
Bile juice from the liver alkalizes the acidic food and breaks down fats into smaller globules.
The pancreas secretes pancreatic juice with enzymes like trypsin and lipase to digest proteins and emulsified fats.
The walls of the small intestine contain glands that secrete intestinal juice to convert proteins, complex carbohydrates, and fats into amino acids, glucose, and fatty acids and glycerol.
Digested food is absorbed by villi, finger-like projections in the inner lining of the small intestine, and transported to cells of the body for energy, tissue building, and repair.
Unabsorbed food is sent to the large intestine where water is absorbed and the rest is eliminated through the anus.
The exit of waste material is regulated by the anal sphincter.

Description

Test your knowledge of the digestive system with our quiz! Learn about the process of digestion, from the mouth to the anus, and discover the different organs and enzymes involved. Challenge yourself to identify the functions of each part of the digestive tract and understand how nutrients are broken down and absorbed. With this quiz, you'll gain a deeper understanding of the fascinating world of digestion.