How many pancreatic buds contribute to the formation of the pancreas?

How many pancreatic buds contribute to the formation of the pancreas?

• A. One
• B. Two
• C. Three
• D. Four

Answer: (B)

Two pancreatic buds contribute to the formation of the pancreas. The gland develops from two endodermal outgrowths of the foregut: a dorsal pancreatic bud and a ventral pancreatic bud. The dorsal bud gives rise to most of the pancreas (body and tail, plus part of the head), while the ventral bud forms the lower part of the head and the uncinate process. During development, the ventral bud rotates around the duodenum and fuses with the dorsal bud, and their ducts also fuse to form the main pancreatic duct (with the dorsal duct typically becoming the accessory duct). So, the final pancreas arises from these two buds, not three or four.

Two pancreatic buds contribute to the formation of the pancreas. The gland develops from two endodermal outgrowths of the foregut: a dorsal pancreatic bud and a ventral pancreatic bud. The dorsal bud gives rise to most of the pancreas (body and tail, plus part of the head), while the ventral bud forms the lower part of the head and the uncinate process. During development, the ventral bud rotates around the duodenum and fuses with the dorsal bud, and their ducts also fuse to form the main pancreatic duct (with the dorsal duct typically becoming the accessory duct). So, the final pancreas arises from these two buds, not three or four.