unit 5 digestion review

unit 5 digestion review - Tracing the food particle from...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Tracing the food particle from start to finish UNIT #5 REVIEW HUMAN DIGESTION: 1.) Ingestion of food particle Goes into mouth a. In the mouth we have the enzyme amylase and amylase start to break down food particles. b. Salivary glands in the mouth – secrete amylase 2.) Food particle is now a bolus and enters the trachea a. Continues to travel Parastolsis aids with the movement of bolus down b. Epiglottis blocks the air cavities so that food bolus does not go in the wrong direction down the esophagus. 3.) Food travels from esophagus down into the stomach a. Enters Lumen is the empty cavity that is the stomach and contains HCl acid and aids with the breakdown of the food bolus. b. Inside the stomach (i.e the lumen), the parietal cells store and secrete HCL while the chief cells secrete pepsinogen c. The muscosa is the lining of the stomach that contains the parietal and chief cells d. The food bolus mixed with acid is now called chime . e.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/15/2008 for the course BIO 220 taught by Professor Cassiemajetic during the Fall '07 term at Allegheny.

Page1 / 2

unit 5 digestion review - Tracing the food particle from...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online