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45 terms

Exercise 34

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The layer that contracts to churn food or move food along
muscularis
Layer consisting of a membrane that lines a body cavity that opens to the exterior; overlays smooth muscle
mucosa
Areolar connective tissue layer located deep to the mucosa
submucosa
a serous membrane that is the external layer of a GI tract organ
serosa
Its only function is propulsion
esophagus
A continuous digestive tube from the mouth to the anus
Alimentary canal
Conducts both air and food
pharynx
Primary site of nutrient absorption; is composed of 3 sections
small intestine,
Section of small intestine that receives bile, pancreatic secretion, and food from the stomach
duodenum
Churns food and begins protein digestion
Stomach
Has two sphincters that control elimination of feces from the body
anus
has regions called the cardia, fundus, body, and pylorus
stomach
Has recgions called the cecum, colon, rectum, and anal canal.
large intestine
Receives secretions from salivary glands; mastication occurs here.
mouth
Finger-like extentions increasing surface area in the small intestine
villi
Folds in the gastrin mucosa
rugae
permanent deep ridges in the small intestine mucosa
circular folds
sphincter valve between the stomach and duodenum
pyloric sphincter
serous membrane that lines the abdominal wall
parietal peritoneum
serous membrane that covers the abdominal organs
viseral peritoneum
sphincter that connects the small and large intestine
ileocecal sphincter
fluid that begins digestion of carbohydrates
saliva
bony plat between the mouth and nose
hard palate
forms a brush border ; extension of epithelial cells
microvilli
keeps food and fluids from going up into nasopharynx
epiglottis
Area between the lips and teeth
gums
Region of the stomach where the lower esophageal sphincter meets the stomach
cardia
Has regions called ascending, transverse, descending, and sigmoid.
large intestine
Narrowed region of the stomach before the small intestine
pylorus
A series of gathered pouches in the large intestine
Haustra
mechanically breaks down food during mastication
teeth
Secretes enzymes that digest carbohydrates, proteins, lipids and nucleic acids
pancreas
Salivary glands located under the tongue with ducts that open in the floor of mouth
sublingual
produces and secretes bile into ducts
liver
peritoneal membrane that holds the small intestine to the posterior abdominal wall
mesentary
the secretions of this gland join with the bile to enter the duodenum
pancreas
peritoneal fold that hold the liver to the anterior abdominal wall
falciform ligament
Manipulates food in mastication
tongue
Fatty, large fold of peritoneum covering the transverse colon and small intestine
greater omentum
largest salivary glands whose ducts open by the upper second molars
parotid glands
stores and secrets bile into the duodenum
gallbladder
peritoneal membrane that attaches the stomach and duodenum to the liver
lesser omentum
Salivary glands whose ducts open lateral to the lingual frenulum
submandibular
Trace bile from its secretion to the gallbladder for storage and concentration, and then to the duodenum.
bile canaliculi, bile ducts, left and right hepatic ducts, common hepatic duct, cystic duct, gallbladder, cystic duct, common hepatic duct, hepatopancreatic duct.
Trace blood from the hepatic portal vein through the liver to the inferior vena cava, listing the structures in order.
Hepatic portal vein, hepatic artery, sinusoids, central vein, hepatic vein, inferior vena cava.