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Digestive system

Digestion starts in the mouth by Chewing
Once food is in the mouth, ..... glands secrete fluid Salivary
Salivary fluid breaks down food into Enzymes
Salivary fluid ....... food for swallowing Lubricates
Hard outer part of tooth structure Enamel
Is enamel living or non living tissue Non living
Softer cellular layer inside enamel Dentin
Area where arteries veins and nerves live in a tooth Pulp
What holds a tooth in place Periodontal ligament
The tongue contains receptors called Taste buds
Taste buds stimulate secretion of Saliva
Taste buds stimulate secretion of ...... ..... in stomach Digestive enzymes
What sits at the back of the tongue Epiglottis
What are the 3 salivary glands Parotid gland, submandibular gland, sublingual gland
Where is the parotid gland located Near the ear and masseter muscle
Parotid gland ducts emptis into Side of cheek
Submandibular gland produces majority of Nonstimulated saliva
Non stimulated saliva is produced ...... the majority of the time Submandibular gland
Sublingual gland is located Inferior to tongue
Sublingual gland ducts empty on sides of Frenulum of the tongue
What gland is inferior to the tongue Sublingual
What is the epiglottis Piece of cartilage attached to muscle and hyoid bone
What is attached to the muscle and hyoid bone in the mouth The epiglottis
The epiglottis is made of Cartilage
When swallowing, the ........ helps food into the esophagus Epiglottis
The epiglottis closes the ...... when swallowing Trachea
What is the name of the contraction that pushes food towards stomach Peristalic
How does food move towards stomach Peristaltic contraction of esophagus pushes it
What is the muscular rube that moves food to stomach Esophagus
The esophagus is located posterior to Trachea
Are enzymes released in the esophagus No
The stomach is surrounded by Muscle
Gastric juices are acidic or base Acidic
Stomach secretes ....... and ...... to break down foos Acidic gastric juices, enzymes
How is food mixed within the stomach Contractions of muscles agitate food within stomach to mix with gastric secretions
What is the ring of muscle at the opening of the stomach Cardiac sphincter
What prevent gastric juices from going into the esophagus Cardiac sphincter
The ring of muscle in the opening of small intestine is called Pyloric sphincter
What are the folds in the wall of the stomach called Rugae
What allows the stomach to expand The rugae
Once food enters the stomach, ..... cells release. ....... Parietal, hydrochloric acid
Hydrochloric acid is released by what Parietal cells
What cells release pepsinogen Chief cells
Chief cells are located In the stomach walls
Chief cells in the stomach wall secrete Pepsinogen
Pepsinogen is a precursor to Peptin
Peptin is a precursor of Pepsinogen
What breaks down proteins into smaller polypeptides Pepsin
Proteins are broken down by Pepsin
Name the 3 sections of the intestines Duodenum, jejunum, ilium
What is the length of duodenum 1 ft
What is the length of jejunum 8 ft
What is the length of ilium 11 ft
What hold the intestines in place Mesentery
What does the mesentery do Holds the intestines in place
What does the mesentery contain Blood and lymphatic vessels
The blood and lymphatic vessels purpose in the mesentery is for Absorption
To increase surface area and absorption capacity, the small intestine have Intestinal villi
What are intestinal villi Finger like projections
Intestinal villi line what organ Small intestine
Intestinal villi are what kind of cells Columnar epithelial cells
What are the 3 accessory digestive organs Liver, gallbladder and pancreas
What are the two ducts that connect to the duodenum Pancreatic duct, common bile duct
What produces bile Hepatic cells of the liver
The salts in the bile are called Bile salts
What breaks down lipids in the liver Bile salts
The liver has a duct system which connects to the Gallbladder
What is the function of the gallbladder Stores bile and concentrates it
How does the gallbladder connect to hepatic duct Via the cystic duct
What are the hepatic cells of the liver called Hepatocytes
Hepatocytes produce Bile
Hepatocytes produce bile which is absorbed in Bile canaliculi
What in bile breaks down lipids Bile salts
The pancreas produces ..... to neutralize the acid from the stomach Bicarbonates
What does bicarbonate do Neutralize the acid from stomach
What stimulates the pancreas to produce bicarbonates Secreting releases by duodenum
Secretin is released by Duodenum
Secretin is related into duodenum via Pancreatic duct
Pancreatic duct is located Adjacent to bile duct
The large intestine is also called Colon
How many regions are in the large intestine 5
What are the 5 region names of the large intestine Cecum, ascending, transverse, descending, sigmoid
What empties into the cecum Ileum
What is the function of large intestine Absorbs water and salts
Appendicit is Inflammation of the appendix
Where is the appendix located Lower right quadrant
Is appendix burst it can cause Sepsis
What is hirschirings disease Lack of innervation to colon (no signal to defecate) & causes feces to collect and enlarge colon.
What is the final section the of digestive system Sigmoid colon empties into rectum, rectum becomes anal canal
Anal canal stores what Feces until defecation
How many muscles control defecation 2
Name the 2 muscles that control defecation External anal sphincter and internal anal sphincter
How much does the stomach absorbs Very little
What does the stomach absorb Alcohol, water and salts
What organ absorbs the most nutrients Small intestines
The colon absorbs Water and salts
Created by: Miccimouse