Date: Feb 10, 2014Page: Table of Contents p 19

W.O.D: Last 5 pages Warm-ups: Front Cover

W.O.D. Enzyme – Proteins that increase the rate of a chemical reaction.

Question: What do you think enzymes do in your digestive tract?

Glossary

Today’s Plan

• Warm-Up• Digestive System Notes• Dental Data• Digestive system reading/coloring (Text 979)• Reflection

1. What is the main function of the Digestive System?

2. What is the first step of digestion?

3. Describe two problems that can happen to teeth, and how to prevent them.

4. What are the salivary glands, and where are they located?

Digestive System Notes

1. What is the main function of the Digestive System?

Functions: mechanical and chemical breakdown of food

       *absorption of nutrients

Consists of alimentary (nutritious) canal and accessory organs

2. What is the first step of digestion?The mouth is first to receive food. The grinding motion of chewing, and the enzymes found in saliva, begin the digestive process.

3. Describe two problems that can happen to teeth, and how to prevent them. Teeth are important to digestion! Take care of them!

Know your Teeth: Incisors

Cuspid (canine)

Bicuspids

Molars

Tooth Decay can be reduced by brushing, flossing, and reducing sugary foods.

METH MOUTH

Prevention: DON’T DO METH!

See a dentist if you have pain near your wisdom teeth. Genetic – no prevention.

ROOT CANAL

4. What are the salivary glands, and where are they located?

• Salivary glands produce saliva and secrete an enzyme that breaks down starch into sugar.

• There are 3 main salivary glands.

Salivary Glands Parotid - ear, cheekSubmandibular - below jawSublingual - under tongue

Reflection:What is one thing you can do to increase your

dental health?