BIOLOGÍA - GEOLOGÍA . COM

1st ESO

3rd ESO

4th ESO

Biology 2nd Baccalaureate

Index by courses

Forums

 

Skip navigation

3.2.1.2. Insalivation

Insalivation of food

The salivation consists of impregnating the food with saliva from the salivary glands , while occurs chewing.

The saliva, among other functions, serves to:

  • Moisten the food to detect the taste.
  • Lubricate the food to facilitate swallowing.
  • Begin the chemical digestion of carbohydrates, mainly starch.
  • It contains some enzymes, such as lysozyme, which attack some bacteria that exist in food, so it also has a defensive function.

Saliva contains amylase, a digestive enzyme that starts the digestion of starch. The food crushed and mixed with saliva forms the cud (food bolus).                  

There are three salivary glands that produce between 1 and 1.5 liters of saliva a day. They are the sublingualsubmaxillary and parotid salivary glands.

Glándulas salivares: parótidas, submaxilares y siblinguales

Creado a partir de https://commons.wikimedia.org/wiki/File:Illu_quiz_hn_02.jpg


         

Legal warning

Blog

Download

Contact

 

 

Follow us if it has been useful to you biologia-geologia.com.
 

Biology and Geology teaching materials for Compulsory Secondary Education (ESO) and Baccalaureate students.