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Lecture Proteins Objectives

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Lecture 2 objectives the digestive system

Define hunger and appetite

What do we call a physiologic need for food without appetite?

What part of the body triggers feelings of either hunger or satiation (fullness)?

Describe the location and mechanism of the nerve cells that relay information to the part of the brain responsible for integrating various information and “deciding whether you are hungry or full.

What is a hormone?

Which two hormones are responsible for maintaining blood glucose levels? What is their role in signaling hunger?

Name one other hormone that causes a feeling of satiety? Where is this hormone produced?

What role does the type of food have in feelings of satiety? Which nutrient has the highest satiety value?

Explain why eating a greater quantity of food with the same amount of calories (vegetables vs fat) gives you a greater feeling of fullness.

Explain what types of cultural cues affect our eating habits

Explain the role of learning in our eating habits

What is basic unit of matter and cannot be sub-divided?

Define molecule

What is the simplest collection of matter that can live?

Define Tissue Organ Organ system

Be able to recognize the five stages of the digestive process.

Briefly describe the three phases of digestion

Describe: alimentary canal (how long is it?) Sphincters (where are some located?)

What is the cephalic phase of digestion?

What is the role of the tongue in digestion?

What are the papillae on the tongue?

What is the role of the salivary glands in digestion? What does saliva contain?

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