24 Questions
What is the total length of the duodenum?
25 cm
Which part of the duodenum is the most common site of ulceration?
The first part (superior)
Which part of the duodenum is connected to the liver by the hepatoduodenal ligament?
The first part (superior)
Which part of the duodenum lies posterior to the transverse colon and anterior to the right kidney?
The second part (descending)
Which part of the duodenum is the shortest?
The fourth part (ascending)
What is the length of the first part (superior) of the duodenum?
2 inches
Which part of the duodenum is the longest?
The third part (horizontal)
What is the shape formed by the duodenum?
A 'C' shape
What artery supplies the duodenum above the major duodenal papilla?
Superior pancreaticoduodenal artery
What artery supplies the duodenum below the major duodenal papilla?
Inferior pancreaticoduodenal artery
Which vein does the duodenum drain into?
Superior mesenteric vein
What is the posterior relation of the first part of the duodenum?
Gastroduodenal artery
Where does the bile duct open into the duodenum?
Second part
What is the anterior relation of the third part of the duodenum?
Superior mesenteric artery
What is the lymphatic drainage of the duodenum?
Pancreaticoduodenal, hepatic, and coeliac lymph nodes
What are the sympathetic nerve supply to the duodenum?
T9 and T10
Which part of the duodenum crosses over the inferior vena cava and aorta?
Third part
What is the name of the opening where bile and pancreatic secretions enter the duodenum?
Major duodenal papilla
What is the anatomical structure located inferiorly to the pancreas and posteriorly to the superior mesenteric artery and vein?
Third part of the duodenum
What is the sharp turn called where the duodenum joins the jejunum?
Duodenojejunal flexure
Which muscle aids in the movement of intestinal contents from the duodenum into the jejunum?
Suspensory muscle of duodenum
What is the name of the fibromuscular band that suspends and supports the duodenojejunal flexure?
Ligament of Treitz
From which anatomical structure does the ligament of Treitz arise?
Right crus of the diaphragm
What is the effect of the contraction of the ligament of Treitz?
It increases the angle of the duodenojejunal flexure
Learn about the anatomy of the small intestine, focusing on the duodenum. Understand the different parts of the duodenum and its functions in the digestive system.
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