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Terms in this set (47)
Food undergoes three forms of processing in the body:
digestion, absorption, metabolism
Oral cavity, is a hollow chamber with a roof, a floor, and walls. Food enters and the process of digestion begins immediately.
Hanging down from the center of the soft palate is an elongated process. It prevents any food and liquid from entering the nasal cavities above the mouth and also assist in speech and swallowing.
The thin membrane that attaches the tongue to the floor of the mouth
Types of teeth
after food has been chewed, it is formed into a small rounded mass called the bolus so that it can be swallowed.
the neck of a tooth is the narrow portion surrounded by the pink gingival or gum tissue.
inflammation or infection of the gums
Thrush or oral candidiasis
mouth infection caused by a yeastlike fungal organism
Cleft lip and cleft palate
most common form of congenital defect affecting the mouth.
largest of the salivary glands lie just below and in front of each ear at the angle of the jaw.
the ducts of this open into the mouth on either side of the lingual fenulum
Saliva contains mucus and a digestive enzyme called salivary...
or throat, is a tubelike structure made of muscle and lined with mucous membrane
The inside or hollow space within the tube is called the...
The four layers named from the inside coat to the outside of the tube are as follows:
1. Mucosa, or mucous membrane
is composed of tough and stratified abrasion resistant epithelium.
is a connective tissue layer that lies just below the mucosa
the layers of muscle tissue have an important function in the digestive process.
a wavelike, rhythmic contraction of the muscular coat, food material is moved through the digestive tube.
is the outermost covering or coat of the digestive tube. In the abdominal cavity it is compose of the visceral peritoneum
is a collapsible, muscular, mucus-lined tube about 25cm long that extends from the pharynx to the stomach.
helps prevent air from entering the tube during respiration, and the...
normally prevents back-flow of acidic stomach contents.
gastroesophageal reflux disease
GERD is associated with...
Barrett esophagus, and hiatal hernia
Contraction of the stomach muscluar walls mixes the food thoroughly with the gastric juice and breaks it down into a semi-solid mixture called
The three divisions of the stomach
fundus, body, and pylorus
Partial digestion occurs after food is held in the stomach by the
is the study of the stomach and the intestines and their diseases
chronic loss of appetite
unpleasant feeling that often leads to vomiting
an obstruction narrowing of its opening can be corrected surgically in infancy
is a craterlike wound or sore in the membrane cause by tissue destruction
is roughly 7 meters long (20 feet)
Three different sections of the small intestine include
duodenum, jejunum, and ileum
thousands of tiny fingers called
each villus is itsself covered by epithelial cells, which have a brushlike border composed of
Inflammation of the small intestine
Inflammation of the small intestine and the stomach
is a general term referring to a group of symptoms resulting from the failure of the smallintestine to absorb nutrients properly
involves a deficit of digestive enzymes or bile salts
secreted from a duct in the liver
solid clumps of material that form in the gallbladder in 1 in 10 Americans
inflammation of the liver
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Chapter 18 Digestive System
Chapter 18 Digestive System