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Digestion Ch.15
Ch.15 Digestion & Nutrition
Question | Answer |
---|---|
Digestion is the mechanical and chemical breakdown of foods and the absorption of the resulting nutrients by cells. T/F? | True |
The mouth, pharynx, esophagus, stomach, and large and small intestines make up the ______________ _________ of the digestive system. | Alimentary canal |
The salivary glands, liver, gallbladder and pancreas are considered __________________ _____________. | Accessory Organs |
The layer of the wall of the alimentary canal that is formed of surface epithelium and protects underlying tissue while carrying on absorption and secretion is the | Serosa |
The layer of the alimentary tube that keeps the outer surface of the alimentary tube moist and slippery is the ______________ | Serosa |
The material that covers the crown of the teeth is ____________. | Enamel |
Teeth that are chisel-shaped and whose function is to bite off pieces of food are __________. | Incisors |
Function of saliva is to begin digestion of protein. T/F? | False |
The salivary glands that secrete amylase are the _____________. | Parotid |
During swallowing, muscles draw the soft palate and uvula upward to __________________. | Separate the oral and nasal cavities |
When food enters the esophagus, it is transported to the stomach by a movement called ___________. | Peristalis |
The area of the stomach that acts as a temporary storage area is the _________________. | Fundic region |
The chief cells of the gastric glands secrete ___________________. | digestive enzymes |
The digestive enzyme pepsin secreted by gastric glands begins the digestion of ____________. | Protein |
The intrinsic factor secreted by the stomach aids in the absorption of ____________ ___________________from the small intestine. | Vitamin B12 |
The presence of food in the small intestine ___________ gastric secretion. | inhibits |
The semifluid paste formed in the stomach by mixing food and gastric secretion is _____________ | Chyme |
The function of the gallbladder is to _____________ and __________ bile | concentrate and store |
The gallbladder is stimulated to release bile by the hormone _________________. | Cholecystokinin |
Function of bile is _____________________, ________________, and ________________. | Emulsify fat globules, absorb fat, and absorb fat-soluble vitamins. |
Portions of the small intestine: _________________, ___________, and ___________________. | duodenum, jejunum, ileum |
The velvety appearance of the lining of the small intestine is due to the presence of ____________________. | villi |
The small intestine absorbs __________ of the products of digestion. | most |
Digestive enzymes and mucus are secreted by the small intestine. T/F? | True |
Peristaltic rush in the small intestine results in ______________. | diarrhea |
The small intestine joins the large intestine at the _____________. | cecum |
The only significant secretion of the large intestine is ___________. | mucus |
The only nutrients normally absorbed in the large intestine are ____________________ and ___________________. | electrolytes and water |