27 terms

Build a body: the digestive system

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Pancreatic Duct
Transports enzymes from the pancreas to the small intestine.
Pancreas
Is a gland that produces enzymes to breakdown proteins, fats, and carbohydrates.
Small intestines
Is divided into three segments: duodenum, jejunum, and ilium.
Teeth
Are an accessory digestive organ that some old people and methamphetamine addicts do not have.
Gallbladder
Stores bile that is produced by the liver.
Liver
Is the largest internal organ, it processes sugars and proteins for energy and breaks down all toxins from the blood stream.
Esophagus
Uses peristalsis to move food from the pharynx to the stomach.
Large Intestine
completes the digestive process by absorbing water and minerals. Is involved in formation of feces and the expulsion of feces from the body.
Stomach
Contains glands that secrete mucous to protect this organ from acid.
Bile Duct
Connects the gall bladder to the duodenum. Is the passage in which bile flows through when fats in the intestines need to be emulsified.
Stomach
A large muscular J-shaped bag that serves as a mixing chamber and holding reservoir.
Tongue
Is considered an accessory digestive organ. It moves food for chewing and shapes food into rounded masses.
Pancreas
Releases bicarbonate which neutralizes gastric juices, these juices are released into the small intestine.
Appendix
Is a vestigial organ that does not play a known role in digestion.
Salivary Glands
Are accessory digestive organs that produce saliva. Saliva contains salivary amylase that breaks down carbohydrates.
Liver
Produces and secretes bile and bile salts for the emulsion of fats and phagocytizes bacteria using Kupffer cells.
Gallbladder
In response the presence of fat this organ squirts bile through the bile duct into the duodenum.
Mouth
The first stop in the digestive process. This is where mastication of food takes place.
Rectum
Stores waste until the body is ready to expel it. The answer is not the large intestine.
Stomach
Is lined with tiny glands that secrete HCl and enzymes to break down proteins.
Small Intestines
The major site of digestion of food and absorption of nutrients into the blood stream
What is chyme?
A mixture of food and digestive (gastric juices)
What is the function of the cardiac sphincter?
To prevent chyme from going back into the esophagus
What does emulsified mean?
To break down fat
What does mastication mean? Where does it take place?
To chew/grind up food. It occurs in the mouth.
What are the three sections of the large intestine?
Ascending colon, descending colon, transverse colon.
How can you tell the difference between the ascending and descending colon?
The descending colon leads to the rectum and the ascending colon is closer to the cecum.
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