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What connects the pharynx and the stomach?
esophagus
What is the structure of the esophagus?
muscular, mucous lined tube
about how long is the esophagus?
10 inches long
What type of movement is there in the esophagus?
muscle contractions that push food towards the stomach
What is the muscular organ that receives food from the esophagus?
stomach
Where is the stomach located?
upper left quadrant, just under the diaphragm
How big is an empty stomach?
size of a sausage
When the stomach is full what does it do?
stretches and pushes on diaphragm
What closes above the stomach, keeping food from going back up into the esophagus?
gastroesophageal sphincter
What is the structure of the stomach?
lined with 3 layers of smooth muscle
What is the muscle contraction called that pushes food through the digestive tract?
peristalsis
What is the semisolid mixture formed from bolus called?
chyme
What are the 3 divisions of the stomach?
fundus, body, pylorus
What is the enlarged portion at the opening of the stomach called?
fundus
what is the middle of the stomach called?
body
What is the lower section of stomach, that joins with first part of the small intestine?
pylorus
