Lecture31: Large Intestine And Its Blood Supply Flashcards
What are Omental Appendices?
Accumalations of fat across the surface of the large intestine
What are Taenia Coli?
Longitudinal muscles that separate the large intestine
Which part of the Cecum is the appendix attached to?
The Posteromedial wall
What suspends the Appendix (holds it from the terminal ileum)?
The Mesoappendix
What 2 structures is the Mesoappendix attached to?
The Cecum and Proximal Appendix
What is the most common appendicular position?
Retrocaecal
What is the least common position of the appendix?
Post-ileal
What is the arterial supply of the appendix?
Appendicular artery
What is the origin of both posterior and anterior Ceacal arteries + appendicular artery?
Ileocolic artery
What 2 areas is appendicitis pain found?
Right iliac fossa and umbilicus
What supplies the appendix sympathetically?
T10
What is the surgery for appendicitis?
Appendectomy
What is the point of incision in appendectomy?
McBurney’s Point
Which 2 parts of the colon are retroperitoneal?
Ascending and descending colon
Which 2 parts of the colon are intraperitoneal?
Transverse and sigmoid segments
Where is the Right hepatic flexure located?
Under the liver
What is the right hepatic flexure?
The junction of both ascending and transverse colons
What is the Left Splenic Flexure attached to the diaphragm via?
The phrenicolic ligament
What does the Transverse Mesocolon attach the Transverse colon to?
The Posterior Abdominal wall
What type of structure is the rectum?
Retroperitoneal
What is the rectal part right before the anus?
The Rectal Ampulla
What is the site of Portosystemic anastomosis?
The Rectum
The internal anal sphincter is under…. Control?
InVoluntary
What does Colonoscopy look for?
Early malignant tumors
What are haemorrhoids?
Dilated venous plexus’ causing bleeding and pain, can be both internal and external
What is the arterial supply of the Ascending colon?
Posterior and anterior cecal arteries + right colic artery
What is the arterial supply of the transverse colon?
Right, middle and left colic arteries
What is the marginal artery?
A network/anastomosis connecting all the colon arteries
What is the arterial supply of the descending colon?
Left colic artery
What is the arterial supply of the sigmoid colon?
Sigmoidal branches
