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List the functions of the digestive system
breakdown of ingested food, absorption of nutrients into the blood
Alimentary canal consists of:
mouth, phaynx, esophagus, stomach, small intestines, large intestines, anus
List the accesory organs of the digestive system:
pancreas, teeth, liver, salivary glands, gallbladder
Starting from the deepest layer and moving towards the most superficial, the layers of the wall of the GI tract are:
mucosa, submucosa, muscularis, serosa
food enters at the cardioesophageal sphincter,
acts as a storage tank for food,
delivers chime (processed food) to the small intestine
Parotid glands- anterior to the ears
the role is to masticate food, humans have 2 sets of teeth, decidous and adult with 32 teeth ( ages 6-12 years), incisors, canines, premolars, molars
mixing of food in the mouth by the tongue, churning food in the stomach, segmentation in the small intestine
enzymes break down food materials into their building blocks carbohydrates broken into simple sugars
protein broken into amino acids
fats broken into fatty acids
the esophagus is voluntary in the upper third, mixed in the middle, and involuntary in the lower third.
during the process of digestion, stored bile is poured into the duodenum by which of the flowing?
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