Small Intestine

Question 1

• Longest
• 20 ft
• Absorption of nutrients
• Presence of Villi and plica circularis – fold of mucosa

Answer 1

Small Intestine

Question 2

Small Intestine Parts:

Answer 2

1.Duodenum
2.Jejunum
3.Ileum

Question 3

• C-shaped
• Enclosing the head of pancreas
• with 4 parts (superior, descending, transverse and ascending)
• the common bile duct (CBD) and main pancreatic duct and accessory pancreatic ducts enter to the 2nd part of duodenum

Answer 3

Duodenum

Question 4

• major duodenal papilla with sphincter of Oddi around common duct and main pancreatic duct of Wirsung
• minor duodenal of accessory pancreatic duct of Santorini

Answer 4

Gross Structural Characteristics of Duodenum:

Question 5

 CBD and MPD uniting to form ampulla vater
 Guarded by sphincter of oddi

Answer 5

Ampulla of vater

Question 6

• located at the left upper quadrant
• upper 2/5 (8ft)
• more vascular wider and thicker than ileum

Answer 6

Jejunum

Question 7

• longest, found at the right lower quadrant
• lower 3/5 (12ft)
• provided with Peyer’s patches or aggregated lymph nodules

Answer 7

Ileum