FNN 111 Lecture Notes - Lecture 3: Gastric Acid, Portal Vein, Helicobacter Pylori

• School: Ryerson University
• Department: Nutrition and Food
• Course: FNN 111
• Professor: Jessica Reingold

Document Summary

Importance of food energy for body processes head for thermoregulation building blocks for growth and maintenance (of body tissue) Hunger: a physiological sensation that prompts one to eat. Physiological: branch of biology that deals with normal functions of living organisms and their parts. Appetite: a physiological desire to consume specific foods. Why do we want to eat? connected to our senses: taste, sight, smell, touch, hearing (?) 1type of food, foods have differing effect on feelings of hunger/satiety satiety (fullness) level value: protein > fat > carbs bulky foods provide sense of satiety solid foods are more filling than semi-solid or liquid foods. 2hormones, chemicals produced in specialized glands that travel in bloodstream to target organs in other parts of body some hormones stimulate hunger (e. g. leptin) some hormones produce a feeling of hunger (e. g. grehlin) Organization of the body atoms3 (cid:314) molecules5 (cid:314) cells4 (cid:314) tissue6 (cid:314) organ (cid:314) organ system7.