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ADV Bio Module 13

QuestionAnswer
Deglutition The act of swallowing
Peristalsis The process of contraction and relaxation of the smooth muscle, which pushes food through the alimentary canal
Lumen The hole in the center of a tube
Micronutrients The nutrients the body needs in small amounts; the vitamins and minerals
stores excess glucose and glycogen liver
The first source of amylase secreted into food salivary glands
The second source of amylase secreted into food pancreas
Produces bile liver
Has gastric pits that secrete gastric juice stomach
Holds feces and triggers the defecation reflex rectum
Does most nutrient absorption small intestine
Has endocrine and exocrine functions and is an accessory organ pancreas
Contains glands which produce CCK small intestine
Contains glands which produce secretin small intestine
Holds bile and concentrates it gall bladder
Moves food from the pharynx to the stomach esophagus
Interconverts macronutrients based on the body's needs liver
The epiglottis and soft palate both participate in deglutition. What do they do? -Epiglottis closes off the larynx to prevent food from entering the airways -Soft Palate seals the nasal cavity to prevent fluid or food from entering the nasal cavity
What are intestinal villi? Why are they so important? -Intestinal Villi are tiny projections in the small intestine that greatly increase its surface area
What is wrong with the following statement? "Certain cells in the stomach produce pepsin, an enzyme that breaks down proteins." Cells cannot produce an enzyme that breaks down proteins. It would kill the cell.
Without intrinsic factor, what is the body unable to do? The body cannot absorb vitamin B12 without intrinsic factor
What are the three classes of macronutrients? carbohydrates, fats, and proteins
What are the two vitamins that can be produced in the body as well as absorbed from food? Vitamins D and K can be produced in the body
 

 



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