GIT Flashcards
In which week of human development does the primordial gut tube develop?
Week 4
What is the primordial gut tube derived from?
From the endoderm lining the yolk sac
Which structures make up the midgut?
Lower resp. system
Primordial pharynx and it’s derivatives
Oesophagus
Stomach
Duodenum
Liver
Pancreas
Biliary apparatus
What makes up the biliary apparatus?
Hepatic ducts
Gall bladder
Bile duct
What is the artery for the foregut?
Celiac trunk
What is the venous drainage for the foregut?
Celiac lymph nodes
How long is the oesophagus?
25cm
Name the three constrictions of the oesophagus.
Cervical
Thoracic
Abdominal
Name the four parts of the stomach.
Cardia
Fundus
Body
Pyloric
What is the fundus usually filled with?
Gas
What is meant by sphincter?
Thickening of muscle which can constrict and open to allow substances through the body.
What is the role of the Pyloric Sphincter?
Controls the discharge of stomach contents into the duodenum
Which structures make up the stomach bed?
Diaphragm, spleen, left kidney, adrenal gland, splenic artery, pancreas, transverse mesocolon and colon
What is the function of biliary ducts?
Carry bile from the liver to the gallbladder
Where is bile produced?
Liver
Where is bile stored and concentrated?
Gall bladder
How much bile can the gallbladder store?
50ml
Which artery feeds the gallbladder?
Cystic artery
Where does the cystic artery lie?
In the Triangle of Calot (between common hepatic duct, cystic duct and visceral surface of liver)
Is the pancreas an endocrine or exocrine gland?
Both
What does the pancreas release excorinely?
Pancreatic juices
What does the pancreas release endorinely?
Insulin and glucagon
Where is the portal vein formed?
Behind the neck of the pancreas
What are the three main branches of the celiac trunk?
Left gastric artery
Hepatic artery
Splenic artery
Where does the hepatic artery supply?
Gallbladder and liver
Where does the left gastric artery run along?
Lesser curvature of the stomach