C12: GI Tract Flashcards
(50 cards)
What is the esophagus and where does it pass though the diaphragm
Where does it enter the stomach
- muscular tube going from the pharynx to the GE junction
- passes through hiatus of diaphragm at T10 and enters the superomedial aspect of the stomach (cardia)
What is the hiatus of the diaphragm formed by
The R crus of the diaphragm
What’s the relationship of the esophagus to the AO
Anterior
The GE junction marks the juncture of what structures of the stomach
The greater and lesser curve
Where is the stomach located in the abdo
L hypochondrium and epigastric regions (lower aspect crosses midline and ends at the duodenum)
Where is the cardia of the stomach found?
What is the fundus of the stomach?
Body?
Pylorus?
Cardia: surrounds lower esophageal sphincter
Fundus: rounded most superior part of stomach (L of cardia)
Body: central portion
Pylorus: distal aspect of stomach
Where will the pylorus lie with an empty stomach?
Full?
Empty: just R of midline
Full: may shift even more to R of midline
Which part of the sm bowel is the widest and most fixed
Duodenum
What are the 4 parts of the duodenum and all of their different names
- First part/Superior/Bulb
- Second/ descending
- Third part/transverse
- Forth part/ascending
Describe the location of the 1st part of the duodenum.
- intraperitoneal
- runs from neck of the pylorus up and backwards to the level of the GB
which structures empty into the 2nd part of the duodenum.
CBD and main panc duct
Which areas of the abdo are retroperitoneal
2nd to 4th part of the duodenum
The jejunum leaves the retro peritoneum and becomes intra peritoneum at which ligamentum
Suspensory ligament/ligament of Treitz
What’s the function of the ligamentum of Treitz
Attaches duodenum to the diaphragm
How’s the jejunum arranged and which regions of the body does it occupy
-arranged in multiple loops and occupies the umbilical and L iliac regions
Which part of the small bowel is the longest?
Where does it join the large intestine
Ileum
A the ileocecal sphincter (valve of the sm bowel/lg bowel junction)
Which regions of the abdo does the ileum occupy
Umbilical, hypogastric, R iliac and pelvic regions
What structure anchors the ileum and jejunum to the post. Abdo wall
Mesentary
Where in the abdo is the cecum located
In the retroperitoneum
- in RLQ and/or R iliac region
- sits below ileocecal sphincter at het origin of the ascending colon
(Pouch like portion)
Which structures extends from the inferior portion of the cecum
Appendix
What is the appendix
Blind ended tub that opens into the cecum
What DI modalities are best to see the appendix in children and adults
Adults: CT
Children: US
Which area of the body is the ascending colon and how does it run?
Retroperitoneum
-runs in a superior path along the R flank… from the R iliac fossa to the visceral surface of the R lobe of liver
What does the hepatic flexure connect? Which structure does is get in the way of imaging
- connects the ascending and transverse colon
- 90 degree curse in the RUQ
- makes it hard to image the R kidney
