Accessory Organs Of Digestion Flashcards
Is a long tapering structure that lies transversely in the upper posterior abdomen behind the duodenum and stomach. Like the duodenum, it is a retroperitoneal organ.
PANCREAS or PANCREATIC GLAND
Is it’s blunt, rounded which lies in the curve of the duodenum or C-loop.
Head of the Pancreas
Is the long, tapering part extending to the (L) behind the stomach. Tail of the Pancreas – is its pointed (L) end.
Body of the Pancreas
Is a hollow tube that extends from the tail, through the body and head to join the Common Bile duct which carries the pancreatic fluid to the duodenum.
Pancreatic Duct/Duct of Wirsung
The Pancreas is made up of many minute glands that manufacture and secrete digestive enzyme called [. ] which is collected by these tiny ducts.
Pancreatic fluid or juice
Are small clumps of cells scattered throughout the Pancreas. They have no duct, but a secretion “Insulin “is absorbed by the capillary blood vessels and this insulin is necessary for the utilization of Glucose by the cells.
Islets of Langerhans/Islands of Langerhans
Absence of Insulin causes
Diabetes
Is the largest solid organ in the body and may weigh 3 pounds. It occupies the upper (R) abdomen but extends to the (L) side of the body. When viewed from the front, it is roughly triangular in shape.
LIVER
Liver is attached to the diaphragm and anterior abdominal wall by
Falciform Ligament
Are the one responsible in secreting bile into the bile ducts to approximately 1-3 pints per day.
Hepatic cells
Is a pear-shaped hollow organ which lies in an impression below the liver that serves as a reservoir for bile.
It is located in the RUQ and opposite the ninth costal cartilage but may also be lower.
GALL BLADDER
Is a hollow tube that passes from the gall bladder to join the hepatic duct.
Cystic Duct or Ductus Cysticus
Is formed by the union of the (R)Hepatic duct or the Ductus Hepaticus Dexter and (L) Hepatic duct or Ductus Hepaticus Cummunis and cystic duct. It passes down behind the descending duodenum and opens into the “Ampulla of Vater/Hepato-Pancreatic ampulla” which has a sphincter called “Sphincter of Oddi”.
Common Bile Duct or Ductus Choledochus
Is another hormone with its source from the duodenum that increases output of enzymic-rich pancreatic juice, stimulates the Gall Bladder to expel stored bile and it relaxes the sphincter of oddi to allow bile and pancreatic juice to enter the duodenum.
Cholecystokinin
FUNCTIONS OF THE DIGESTIVE SYSTEM:
- To take in water, salts, vitamins and food and to digest the food so that it may be absorbed.
- To absorb these food constituents.
- To get rid of waste products as feces.