What are the basic processes of digestion?
Digestion Is a 6-Step Process The six major activities of the digestive system are ingestion, propulsion, mechanical breakdown, chemical digestion, absorption, and elimination.
What are the four basic digestive processes quizlet?
What are the four basic digestive processes? Motility, secretion, digestion, and absorption.
What are the three stages of the digestive system?
The process of digestion has three stages: the cephalic phase, the gastric phase, and the intestinal phase. The first stage, the cephalic phase of digestion, begins with gastric secretions in response to the sight and smell of food.
What are the four functions of saliva?
The functions of saliva are:
- Lubrication of food:
- Solvent action:
- Cleansing action:
- Digestive function:
- Excretory function:
- Helps in speech:
- Role in regulating water content in body:
- Buffering function:
What is the first stage of the digestive process?
Mouth. The mouth is the beginning of the digestive tract. In fact, digestion starts here as soon as you take the first bite of a meal. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use.
What are the 4 main functions of the digestive system quizlet?
What are the four main functions of the digestive system? Ingestion, Digestion, absorption and elimination of waste.
What is the sequence of the digestive system?
The main organs that make up the digestive system (in order of their function) are the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus.
What are the functions of tongue?
The tongue (L. lingua; G. glossa) functions as a digestive organ by facilitating the movement of food during mastication and assisting swallowing. Other important functions include speech and taste.
What is the digestive process in order?
The digestive processes are ingestion, propulsion, mechanical digestion, chemical digestion, absorption, and defecation.
What are the steps in the digestive system?
The three major steps involved in the digestive process are ingestion, digestion, and absorption. Ingestion, which occurs in the mouth, is the first step of the digestive process. After food enters the mouth, the teeth chew it.
What is normal digestion?
The Normal Digestion Process. Food is propelled down the esophagus. At the base of the esophagus there is a circular muscle (the lower esophageal sphincter) that relaxes and allows the food go into the actual stomach. The stomach grinds the food and mixes it with acid.
Which occurs during digestion?
Chemical digestion that occurs in the stomach is mainly via enzymes and hydrochloric acid. The stomach secretes pepsinogen which turns into pepsin and breaks down proteins. The hydrochloric acid provides a low pH level in which the enzymes can thrive.
Where does digestion begin?
In mammals, preparation for digestion begins with the cephalic phase in which saliva is produced in the mouth and digestive enzymes are produced in the stomach. Mechanical and chemical digestion begin in the mouth where food is chewed, and mixed with saliva to begin enzymatic processing of starches.