What is digestive system in biology?

Asked By: Ferreol Abasov | Last Updated: 18th February, 2020
Category: medical health digestive disorders
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The digestive system consists of organs that break down food, absorb its nutrients, and expel any remaining food waste. Digestion is the process of breaking down food into components that the body can absorb. Most digestive organs form a long, continuous tube called the gastrointestinal (GI) tract.

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Just so, what is the definition of digestive system in biology?

noun. the system by which ingested food is acted upon by physical and chemical means to provide the body with absorbable nutrients and to excrete waste products; in mammals the system includes the alimentary canal extending from the mouth to the anus, and the hormones and enzymes assisting in digestion.

Also, what is digestive system and its function? The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus.

Also know, what is a digestive system easy definition?

Digestive system: The system of organs responsible for getting food into and out of the body and for making use of food to keep the body healthy. The digestive system includes the salivary glands, mouth, esophagus, stomach, liver, gallbladder, pancreas, small intestine, colon, and rectum.

What is the most important organ in digestion?

The small intestine is a part of the digestive system. It is the most important organ for the digestion of food.

23 Related Question Answers Found

What are the 2 types of digestion?

There are two kinds of digestion: mechanical and chemical. Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells.

How does the digestive system works?

Digestion works by moving food through the GI tract. Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules.

What are the parts of digestive system?

The major parts of the digestive system:
  • Salivary glands.
  • Pharynx.
  • Esophagus.
  • Stomach.
  • Small Intestine.
  • Large Intestine.
  • Rectum.
  • Accessory digestive organs: liver, gallbladder, pancreas.

Why is the digestive system important?

Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body.

What is digestive system of human being?


The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.

What is the stomach?

The stomach is a muscular organ located on the left side of the upper abdomen. The stomach receives food from the esophagus. The stomach secretes acid and enzymes that digest food. Ridges of muscle tissue called rugae line the stomach. The stomach muscles contract periodically, churning food to enhance digestion.

How many digestive system are there?

11 Digestive System Parts, Definition, Functions, and Organs.

What is the spelling of digestive system?

: the tubular passage typically extending from the mouth to the anus or cloaca that functions in digestion and absorption of food and elimination of residual waste and that in most mammals includes the mouth, pharynx, esophagus, stomach, intestine, and anus. — called also alimentary canal, alimentary tract.

What is called digestion?

Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. After undergoing mastication and starch digestion, the food will be in the form of a small, round slurry mass called a bolus.

What is digestion short answer?


ANSWER. Digestion is how your body turns food you eat into nutrients it uses for energy, growth, and cell repair. The digestive tract (or gastrointestinal tract) is a long twisting tube that starts at your mouth and ends at your anus.

What is the meaning of digestion process?

The process by which food is broken down into simple chemical compounds that can be absorbed and used as nutrients or eliminated by the body. In most animals, nutrients are obtained from food by the action of digestive enzymes. In humans and other higher vertebrates, digestion takes place mainly in the small intestine.

What are the parts and function of the human digestive system?

It is made up of a series of muscles that coordinate the movement of food and other cells that produce enzymes and hormones to aid in the breakdown of food. Along the way are three other organs that are needed for digestion: the liver, gallbladder, and the pancreas.

What is digestive system short note?

The digestive system is the parts of the body that digest food; it is also called the alimentary canal It breaks down food into simple chemical/substances s that can be absorbed into the blood stream. From the blood stream, nutrients go first to the liver. The digestive system also gets rid of waste material.

What is the main function of the digestive system quizlet?


The digestive system has three main functions. They are digestion, absorption, and elimination. The digestive system starts at the mouth when food gets bitten into smaller and smaller pieces and is mixed with saliva. The teeth crush and grind the food.

What is the function of the large intestine?

The 4 major functions of the large intestine are recovery of water and electrolytes, formation and storage of faeces and fermentation of some of the indigestible food matter by bacteria. The ileocaecal valve controls the entry of material from the last part of the small intestine called the ileum.

What is the most important organ in the human body?

Your brain controls and coordinates all of the functions of your body and is the most important organ in your body.