Digestion in the Stomach Food, once it is swallowed, may remain in the stomach for up to 4 hours. Embedded in the folds of the stomach wall are glands.

Slides:

Advertisements

Similar presentations

HOW WE USE NUTRIENTS The Digestive System.

Advertisements

Digestive System.

The Digestive Process Begins

Digestive Process Begins Section 3. Functions of Digestive System Breaks down food into molecules Molecules are absorbed into blood and carried throughout.

Choose one food that you ate today, where do you think digestion and absorption are taking place?

The Digestive System.

The Process of Digestion The digestive system A one way tube which includes the mouth, pharynx, esophagus, stomach, small intestine and large intestine.

Digestive System What is digestion and where does it start?

Digestive System Notes. Mouth Carbohydrate digestion begins here! Ingestion = eating.

Digestive System.

DIGESTIVE SYSTEM BY CHARITY G.. Bibliography Mucus Amylase

Human Digestion.

The Digestive System: Esophagus and Stomach Human Bio 11.

Section 2: The Digestive Process Begins

Digestive And Excretory Systems. Digestive System.

Pages  Temporary food storage  mechanical and chemical breakdown of food ◦ Pepsin is secreted to break down protein  chyme (processed food)

Notes: The Stomach Tuesday (1) Overall Function Break down “bolus” from esophagus. Metabolize ALL Carbohydrates. Begin Protein Metabolism.

Chapter #10 Digestio n. Chapter 10.1 Notes The digestive system is a group of organs that take in food and change it into a form the body can use.

Why do we need food? Gives us energy to function. Provides body with materials to grow and repair tissue. Nutrients – Carbohydrates (CHO), fats, proteins,

A very important organ in the digestive system is the stomach.

Page 1 The Digestive System. Page 2 Digestive System Challenge Take in complex foods. Mechanically break food down. Chemically break food down. Absorb.

The Digestive System 6 th Grade Life Science Major Functions of the Digestive System Break down ingested food Put nutrients into the bloodstream Remove.

Vocabulary Review Digestive System. Digestion Process in which the food we eat is broken down into usable materials.

L5: 5.1 Digestion in the Stomach. QUESTION: What causes digestion in the stomach?

Grade 8 Semester 1 Year Nutrition There are two parts to Nutrition: 1. Ingestion-process of taking food into the digestive system so that it.

Stages of Digestion. Four Stages of Digestion Ingesting Digesting Absorbing Eliminating.

DIGESTIVE SYSTEM.

How Do Body Cells Get Energy From Food?

Objective: You will be able to identify the structures of the digestive system. Do Now: Read page 978 List the accessory organs.

Digestive System Where does our food go?. Body Fuel Just like cars need gas to run, we need fuel for our bodies to function Rather than pouring gas into.

Digestive System.

Mrs. Dalia Kamal Eldien MSC in Microbiology.  Review to the digestive system organs  Structure and function of the stomach  Structure and function.

Your Digestive System The main role of the digestive system is to break down and absorb nutrients that are necessary for growth and maintenance.

Lesson 2: The Human Alimentary Canal The Human Alimentary Canal … includes the entire tube from the mouth all the way to the anus.

 Changes food into substances that cells can use  Eliminates wastes  The digestive tract is 30’ from start to finish.

DIGESTION NOTES Write what is white please.. DIGESTION & NUTRIENTS Digestion: the process where food is broken down into small nutrients to be absorbed.

1 Digestive System Anatomy and Ingestion Chapter 8 Section 8.3.

Digestion Digestive System Digestion is the process of breaking food down into molecules small enough for the body to absorb.

The Digestive System. Digestion  Digestion: is the process of breaking down food into molecules the body can use, the absorption of nutrients, & the.

How your Body uses Food Unit 1 Nutrition 101. Digestion  The process of breaking down food into usable nutrients.  It takes place in the digestive system,

Digestion Digestion is the process of breaking food down into molecules small enough for the body to absorb. Digestive system.

Digestion Review. Why is it important to chew your food before you swallow it?

I. Digestive System. A. Digestive tract 1. Mouth-->Esophagus-->Stomach-- >Small Intestine-->Large Intestine-- >Anus 2. The liver and pancreas aid in digestion.

Chapter 38. Functions of the Digestive System To ingest food Digest food Force food along digestive tract Absorbs nutrients from the digested food Eliminates.

Stomach. Stomach Structure J-shaped, pouch-like organ that hangs inferior to diaphragm in upper left portion of abdominal cavity capacity = 1L or more.

Your Digestive System The main role of the digestive system is to break down and absorb nutrients that are necessary for growth and maintenance.

THE DIGESTIVE SYSTEM C15L2 Two types of digestion mechanical digestion chemical digestion.

Glencoe Health Lesson 3 The Digestive System Pair/Share What are the three main processes (or functions) of Digestion? 30 Seconds…..

The Digestive System.

Lesson 1: The digestive system

The Digestive System Human Digestion.

CLASS SET CLASS SET Physical and Chemical Changes in the Digestive System Reading to Learn: Read the following passage and answer the questions that follow.

Mechanical vs. Chemical Digestion

6.2 – Digestive System.

Stages of Digestion.

Unit 5 Notes: The Stomach

Unit 5 Notes: Oral Cavity, Esophagus & Stomach Details!

The Digestive System.

Section 38.2 The Digestive System

Digestive System.

The Digestive System.

Nutrient Absorption and Delivery

Your Digestive System Objectives

Digestive System.

Unit 2: Digestion in The Stomach

Digestive Process Begins

Digestion Digestion: process of breaking down food into smaller, usable materials 1. The body needs energy and materials a. Need food for energy b. Materials.

Lesson 5 Terms and Definitions

Presentation transcript:

Digestion in the Stomach Food, once it is swallowed, may remain in the stomach for up to 4 hours. Embedded in the folds of the stomach wall are glands that secrete HCl, pepsin, and mucus. HCl activates pepsin (enzyme), which breaks down proteins. Carbohydrates and fats continue to be mechanically broken down by muscular contractions in the stomach, but are not acted upon chemically.

Mucus, secreted by special cells in the stomach, help protect it from gastric juices (combination of HCl and pepsin). If the mucus levels become low, the gastric juices begin to digest the stomach wall, which leads to an ulcer. Eventually, the stomach contents turn into a thick, uniform liquid called chyme.

Review 1.How long might food remain in the stomach? 2.List three substances secreted by the folds of the stomach wall. 3.What are the roles of both pepsin and hydrochloric acid? 4.Why doesn’t the HCl digest the stomach wall itself? 5.Describe chyme.