Session 2: Case Studies Flashcards
What are the two major divisions of the peritoneal cavity?
Lesser and greater sac.
What is the connection between the lesser and greater sac called?
Foramen of Winslow
Omentum foramen
Epiploic foramen
They are all the same
Due to the surrounding anatomical structures the peritoneal cavity has areas called peritoneal pouches where abnormal fluid such as gastric contents can collect.
In a man, name two such areas.
Recto-vesical pouch
Morrison’s pouch (area between liver and right kidney)
State one peritoneal pouch that is only found in females.
Vesico-uterine pouch found between bladder and uterus.
Pouch of douglas found between the uterus and the rectum.
Describe the basic layout of the parasympathetic nervous system as it relates to the GI tract.
It is cranio-sacral with the synapses in the visceral wall.
The vagus nerve and S2-S4 pelvic splanchnic nerves.
What is the purpose of the parasympathetic nervous system in relation to the GI tract.
The on button also called rest and digest.
Which thoracic nerves form the greater splanchnic nerve?
T5-T9
Which thoracic nerves form the lesser splanchnic nerve?
T10-T11
Which thoracic nerves form the least splanchnic nerve?
T12
Which parts of the GI tract are supplied by the greater splanchnic nerve?
The foregut
Which parts of the GI tract are supplied by the lesser splanchnic nerve?
Midgut
Which parts of the GI tract are supplied by the least splanchnic nerve?
Hindgut
How do the splanchnic nerves enter the abdomen?
Crossing the diaphragm
What is the enteric nervous system?
A division of the autonomous nervous system supplying the gut that is independent to the parasympathetic and the sympathetic (although it does communicate with them).
It goes from oesophagus to anus.
Name the two main plexuses of the enteric nervous system and briefly describe their location in the gut wall.
Meissner’s which is submucosal.
Auerbach’s which is myenteric.
