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Tag Archives: esophagus

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Frog Dissection: Background & Urogenital System

ScienceBy William Anderson (Schoolworkhelper Editorial Team)October 1, 2010Leave a comment

Background: As members of the class Amphibia, frogs may live some of their adult lives on land, but they must return to water to reproduce. Eggs are laid and fertilized in water. On the outside of the frog’s head are two external nares, or nostrils; two tympani (tympanic membranes), or eardrums; and two eyes, each…

Organs of the Digestive Tract

ScienceBy William Anderson (Schoolworkhelper Editorial Team)July 1, 20101 Comment

Liver – produces bile -bile emulsifies fats in the small intestine; increases surface area of fat particles Gall Bladder – stores bile between meals – releases bile when food moves into the small intestine Pancreas – manufactures and releases bicarbonate to neutralize acid coming out of the stomach – basic environment inactivates pepsin – releases…

The Digestive System: Function and Structure

ScienceBy William Anderson (Schoolworkhelper Editorial Team)July 1, 20102 Comments

Function of the Digestive System: To change foods you eat into chemical forms your body can use and eliminate anything that can not be used by your body. Food is typically in a form that is completely unsuitable for use by body cells. Food becomes useful only after it has been converted into smaller, simpler…

THE DIGESTIVE SYSTEM

ScienceBy William Anderson (Schoolworkhelper Editorial Team)May 5, 2010Leave a comment

There are many organs and structures that make up the Digestive system and these organs or parts have key functions or roles to play which could include one or more of these: DIGESTION – mechanically or chemically breaking macromolecules to smaller units Mechanical: large food molecules are shredded, torn and ground; this helps to increase…

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