L82a: Structure and Function of the Small Intestine and Pancreas

what organ is the pancreas related to?

duodenum

where is the jejunum found in the horse?

within the left dorsal part of the abdomen

what structure is on te floor of the abdominal cavity in the horse?

large intestine

what side is the jejunum on in ruminants?

right side due to rumen

where is the jejunum in the pig?

mostly on right side of the abdominal cavity when stomach fully distended

where is the pancreas related to the duodenum?

cranio-dorsal part of the abdominal cavity

what part of the pancreas is larger

exocrine component

what is the function of the exocrine pancreas?

produce enzymes to aid in digestion

where are enzymes discharged into from the exocrine pancreas?

into the proximal part of the duodenum through 1 or 2 ducts

what makes up the pancreas?

a body and 2 lobes

what enzymes are produced from the exocrine pancreas?

1. amylase

2. lipase

3. proteases

what regulates the secretion of pancreatic enzymes?

1. hormones

2. nerve signals (vagus nerve)

what specific hormones regulate the secretion of pancreatic enzymes?

1. cholecystokinin

2. secretin

what does the endocrine pancreas secrete?

insulin and glucagon

what does the endocrine pancreas secrete?

hormones into the bloodstream

what type of cells are in the endocrine pancreas?

islets of langerhans

what types of cells are in the exocrine pancreas?

acinar and ductal cells

body of pancreas

middle portion connecting the right and left lobe

right lobe of pancreas

related to the descending duodenum and enclosed within the mesoduodenum

left lobe of pancreas

related to the stomach and enclosed in the deep leaf of the greater omentum

what lobe of the pancreas is also known as the tail?

left lobe

what lobe of the pancreas is also known as the head?

right lobe

what is the location of the pancreas?

craniodorsal part of the abdominal cavity

what is the right lobe of the pancreas ventral to?

right kidney

what is the pancreas closely related to in ruminants?

1. duodenum

2. stomach

3. liver

4. hepatic portal vein

what is the pancreas closely related to in the horse?

1. duodenum

2. stomach

3. liver

what does the hepatic portal vein do the pancreas in horses?

perforates the pancreas

what duct is often absent in cats in the pancreas?

accessory pancreatic duct

which duct of the pancreas is larger in dogs?

accessory pancreatic duct

what pancreatic duct is extremely rare in ox?

pancreatic duct

which pancreatic duct is larger in horses?

pancreatic duct

which duct is present in the pancreas of pigs?

accessory pancreatic duct