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Pancreas Anatomy Ultrasound Vocab
Anatomy of the Pacreas Vocabulary
124
Biology
Undergraduate 1
09/26/2014

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Term
acini cells –
Definition
cells that perform exocrine function
Term
amylase –
Definition
enzyme secreted by the pancreas to aid in the digestion of carbohydrates
Term
body of the pancreas –
Definition
lies in the midepigastrium anterior to the superior mesenteric artery and vein, aorta, and inferior vena cava
Term
caudal pancreatic artery –
Definition
branch of the splenic artery that supplies the tail of the pancreas
Term
C-loop of the duodenum –
Definition
forms the lateral border of the head of the pancreas
Term
common hepatic artery –
Definition
artery arising from the celiac trunk to supply the liver; forms the right superior border of the body and head of the pancreas and gives rise to the gastroduodenal artery
Term
Courvoisier’s sign –
Definition
enlargement of the gallbladder caused by a slow, progressive obstruction of the distal common bile duct from an external mass such as adenocarcinoma of the pancreatic head
Term
cystic fibrosis –
Definition
inherited disorder of the exocrine glands; symptoms include mucous buildup within the lungs and other areas of the body; identified as fatty replacement of the glands
Term
dorsal pancreatic artery –
Definition
branch of the splenic artery that supplies the body of the pancreas
Term
duct of Santorini –
Definition
small accessory duct of the pancreas found in the head of the pancreas
Term
duct of Wirsung –
Definition
largest duct of the pancreas that drains the tail, body, and head of the gland; it joins the common bile duct to enter the duodenum through the ampulla of Vater
Term
endocrine –
Definition
endocrine function of the pancreas is production of the hormone insulin
Term
glucagon –
Definition
hormone that stimulates the liver to convert glycogen to glucose; produced by alpha cells
Term
head of the pancreas –
Definition
lies in the C-loop of the duodenum; the gastroduodenal artery is the anterolateral border and the common bile duct is the posterolateral border
Term
hypercalcemia –
Definition
elevated levels of calcium in the blood
Term
hyperlipidemia –
Definition
congenital condition in which elevated fat levels cause pancreatitis
Term
ileus –
Definition
dilated loops of bowel without peristalsis; associated with various abdominal problems, including pancreatitis, sickle cell crisis, and bowel obstruction
Term
insulin –
Definition
hormone that causes glycogen formation from glucose in the liver and that allows circulating glucose to enter tissue cells
Term
islets of Langerhans –
Definition
portion of the pancreas that has an endocrine function and produces insulin, glucagon, and somatostatin
Term
lipase –
Definition
pancreatic enzyme that breaks down fats; enzyme is elevated in pancreatitis and remains increased longer than amylase
Term
lymphoma –
Definition
a malignant neoplasm that rises from the lymphoid tissues
Term
neck of the pancreas –
Definition
small area of the pancreas between the head and the body; anterior to the superior mesenteric vein
Term
obstructive jaundice –
Definition
excessive bilirubin in the bloodstream caused by an obstruction of bile from the liver; characterized by a yellow discoloration of the sclera of the eye, skin, and mucous membranes
Term
pancreatic ascites –
Definition
fluid accumulation caused by a rupture of a pancreatic pseudocyst into the abdomen; free-floating pancreatic enzymes are very dangerous to surrounding structures
Term
pancreatic pseudocyst –
Definition
“sterile abscess” collection of pancreatic enzymes that accumulate in the available space in the abdomen (usually in or near the pancreas)
Term
pancreaticoduodenal arteries –
Definition
help supply blood to the pancreas along with the splenic artery
Term
pancreatitis –
Definition
inflammation of the pancreas; may be acute or chronic
Term
portal-splenic confluence –
Definition
junction of the splenic and main portal vein; posterior border of the body of the pancreas
Term
pseudocyst –
Definition
a space or cavity that contains fluid but has no true endothelial lining membrane
Term
serum amylase –
Definition
pancreatic enzyme that is elevated during pancreatitis
Term
superior mesenteric artery –
Definition
serves as the posterior border to the body of the pancreas
Term
superior mesenteric vein –
Definition
lies posterior to the neck/body of the pancreas and anterior to the uncinate process of the gland
Term
tail of the pancreas –
Definition
tapered end of the pancreas that lies in the left hypochondrium near the hilus of the spleen and upper pole of the left kidney
Term
uncinate process –
Definition
small, curved tip of the pancreatic head that lies posterior to the superior mesenteric vein
Term
exocrine
Definition
exocrine function of the pancreas is production and digestion of pancreatic juice, primary function of the pancreas
Term
Acini Cells
Definition
Produce pancreatic juice that is composed of enzymes to help digest fats, proteins, carbohydrates, and nucleic acids
Term
Alpha Cells
Definition
Cells that account for 15% to 20% of pancreatic endocrine tissue and produce the hormone glucagon
Term
Ampulla of Vater
Definition
Dilation in the second portion of the duodenum, where the common bile duct and pancreatic ducts enter to discharge substances that aid in the digestive process
Term
Beta Cells
Definition
Consitute 60% to 70% of the pancreatic endocrine cells that produce insulin
Term
Common Bile Duct
Definition
Distal portion of the biliary tract that transports then disharges bile that was manufactured in the liver into the duodenum as needed to aid the digestive process
Term
Delta Cells
Definition
Cells that account for a small percentage of pancreatic endocrine tissue that produces the hormone somatostatin
Term
Duct of Santorini
Definition
Pancreatic accessor duct that enters the duodenum approximately 2cm superior to the duct of wirsung
Term
Duct of Wirsung
Definition
Maine pancreatic duct, transports and discharges pancreatic juice into the duodenum through the ampulla of vater to aid the digestive process
Term
Gastroduodenal Artery
Definition
First branch of the common hepatic artery. Courses along the anterolateral aspect of the pancreas head just right lateral to the pancreas neck, where it divides into anterior and posterior superior pancreaticoduodenal branches. Supplies blood to the head of the pancreas and duodenum.
Term
Glucagon
Definition
Hormone produced by alpha cells in the pancreas that causes the release of glucose to meet the immediate energy needs of the boyd
Term
Insulin
Definition
Hormone produced by beta cells in the pancreas that causes glycogen formation from glucose in the liver
Term
Isles of Langerhans
Definition
Groups of alpha beta, and delta endocrine cells in the pancreas that produce insulin
Term
Pancreatic Body
Definition
Bordered right laterally by the pancreas neck, left laterally by the pancreas tail, anteriorly by the posterior wall of the stomach and posteriorly by the splenic vein.
Term
Pancreatic Body
Definition
Considered the largest portion of the pancreas
Term
Pancreatic Head
Definition
Lies right lateral to the superior mesenteric vein; cradled in the C-loop of the duodenum; directly anterior to the inferior vena cava.
Term
Pancratic Juice
Definition
Composed of enzymes produced by acini cells in the pancreas that help digest fats, proteins, carbohydrates, and nucleic acids
Term
Pancreatic Neck
Definition
Situated between the pancreatic head and body immediately anterior to the superior mesenteric vein. At a slightly higher level, it lies anterior to the portal spenic confluence
Term
Pancreatic Spenic Artery
Definition
Section of the artery located within the pancreas
Term
Pancreatic Tail
Definition
Left lateral to the pancreas body and aorta and extends to the hilum of the spleen. Situated between the stomach anteriorly and left kidney posteriorly. The splenic vein runs along its posterior superior surface. May lie higher, lower or on an even level with the body
Term
Portal Splenic Confluence
Definition
Area just posterior to the neck of the pancreas, where the splenic vein meets the superior mesenteric vein. Together, these veins form the portal vein.
Term
Portal Vein
Definition
Formed by the confluence of the splenic vein and superior mesenteric vein just posterior to the neck of the pancreas
Term
Sphincter of Oddi
Definition
Muscle surrounding the ampulla of vater that controls the flow of pancreatic juice from the pancreas and bile from the biliary tract into the duodenum
Term
Spenic Artery
Definition
Supplies the body and tail of the pancreas with blood. From its origin at the celiac axis is runs along the superior edge of the pancreas body and tail parallel to the splenic vein.
Term
Splenic Vein
Definition
Along with tributaries of the superior mesenteric vein, serves as the venous drainage for the pancreas
Term
Superior Mesenteric Vein
Definition
Along with tributaries of the splenic vein, serves as venous drainage for the pancreas
Term
Uncinate Process
Definition
Posteromedial projection of the pancreas head that lies directly posterior to the superior mesenteric vein and directly anterior to the inferior vena cava or in some cases, due to its size, the abdominal aorta
Term
Pancreatic Head
Definition
Anterior to IVC & CBD
Inferior to Caudate lobe & MVP
Medial to 2nd portion of duodenum
Term
Pancreas divided into three major areas
Definition
Head, neck/body and tail
Term
Head of the Pancreas
Definition
Is anterior to the inferior vena cava (IVC) and left renal vein, inferior to the caudate lobe of the liver and the portal vein, and lateral to the second portion of the duodenum. It lies in the lap of the duodenum
Term
Uncinate Process
Definition
Posterior to the superior mesenteric vessels
Term
Head of Panceras
Definition
Anterior and to the right of the portal-spenic confluence
Term
Portal Splenic Confluence
Definition
Splenic and SMV join to form the portal vein
Term
Uncinate Process
Definition
The small curved tip at the end of the head of the pancreas
Term
Uncinate Process
Definition
Posterior to the SMV
Term
Neck of the Pancreas
Definition
Anterior to SMV - Posterior to antrum of stomach
Term
Common Bile Duct
Definition
Passes through a groove posterior to the pancreatic head, and the gastroduodenal artery serves as the anterolateral border
Term
Neck of the Pancreas
Definition
Directly anterior to the porta-splenic confluence
Term
Neck of the Pancreas
Definition
Portal vein is formed posterior by the junction of the SMV and splenic vein
Term
Body of the Pancreas
Definition
Largest section
Term
Body of the Pancreas
Definition
Lies anterior to the aorta and celiac axis SMA, Common hepatic and left gastric arteries
Term
Body of the Pancreas
Definition
Splenic artery is the superior border of the pancreas
Term
Body of the Pancreas
Definition
Anterior border is the posterior wall of the antrum of the stomach
Term
Body of the Pancreas
Definition
Splenic vein courses across the posteromedial border of the pancreas to join the portal vein
Term
Pancreatic Body
Definition
Posterior to body of stomach
Term
Pancreatic Body
Definition
Anterior to: SV, SMA, AO - inferior to SA
Term
Tail of the Pancreas
Definition
Difficult to image because it lies anterior the the left kidney and posterior to the left colic flexure
Term
Tail of the Pancdreas
Definition
splenic vein is the posterior body
Term
Portal Vein and Tributaries -EXAM
Definition
formed behind the neck of the pancreas by the junction of the SMV and SV
Term
Portal Vein and Tributaries -EXAM
Definition
The SV runs from the hilum along the posterior medial aspect of the pancreas
Term
Portal Vein and Tributaries -EXAM
Definition
The SMV runs posterior to the lower neck of the pancreas and anterior to the uncinate process
Term
Common Bile Duct - EXAM
Definition
The CBD crosses the anterior aspect of the portal vein to the right of the proper hepatic artery. It joins the pancreatic duct close to the Ampulla of Vater
Term
Pancreatic Anomalies - EXAM
Definition
Ectopic pancreatic tissue - most common
Term
Pancreatic Anomalies - EXAM
Definition
Annular pancreas - rare - the head surrounds the secon portion of the duodenum
Term
Physiology of the Pancreas - EXAM
Definition
an exocrine and endocrine gland
Term
Physiology of the Pancreas - EXAM
Definition
Exocrine function - digestion
acini cells of the pancreas
lipase - fat
amylase - digests carbohydrates
Term
Physiology of the Pancreas - EXAM
Definition
Endocrine Gland
-produces insulin
Term
Physiology of the Pancreas - EXAM
Definition
Exocrine Gland
-pancreatic juices
-aid digestion
-controlled by the vagus nerve
Term
Physiology of the Pancreas - EXAM
Definition
Endocrine Function
-located in the islets of Langerhans in the pancreas
-produce insulin
-produce glucagon
Term
Pancreatic Juice - EXAM
Definition
Contains enzymes
-Lipase
-amylase
-carboxy peptidase
-trypsin
-chymotripsin
Term
Exocrine - (out) - EXAM
Definition
Acinar Cells
Term
Endocrine - (in) - EXAM
Definition
Islets of Langerhan
Term
Laboratory Tests - EXAM
Definition
Amylase - digestive enzyme for carbohydrates. a serum amylase level twice that of normal usually indicates acute pancreatitis
Term
Laboratory Tests - EXAM
Definition
Lipase - an enzyme excreated specifically by the pancderas. LIpase elevates in pancreatic disease and may persist for longer period than amylase. May be found in cancer of pancreas
Term
Glucose
Definition
blood sugar level in the body
Term
Head of the Pancreas
Definition
Most cancer
Term
Sonographic Evaluation of the Pancreas - EXAM
Definition
Patient should be NPO for 8-12 hours before examination
- water or fluid technique may be used
Term
Pancreas
Definition
either echogenic as the liver or more echogenic than the liver
Term
Pancreas
Definition
most scans are taken with the patient in the supine position
Term
Left lobe of the liver
Definition
Window to the pancreas
Term
Splenic vein
Definition
saggital view
Term
SMA, IVC, Aorta
Definition
Posterior to the pancreas
Term
Head, boyd and tail
Definition
Anterior to the Aorta, SMV and IVC
Term
SMA, Aorta and IVC
Definition
posterior borders to the pancreas
Term
Splenic Vein
Definition
Outlines the posterior border of the the tail of the pancreas
Term
SMA and Splenic Vein
Definition
outline the posterior border of the tail of the pancreas
Term
Sagittal Panceras
Definition
Lies inferior to the portal vein and to the IVC
Term
SMV
Definition
lies along posterior border of the neck of the pancreas
Term
Window for visualization
Definition
left lobe of the liver, stomach, colon
Term
Water Technique - EXAM
Definition
to better visualize the pancreas, the patient should drink more than 16 ounces of water and be imaged in the upright position
Term
Pathology of the Pancreas - EXAM
Definition
Pancreatitis - most common cause of of pancreatitis is biliary disease
- gallsontes are present in 40% - 60%
-Alcohol abuse is the second most common cause of pancreatitis
- sick liver = biliary tract disease
Term
Acute pancreatitis
Definition
-just started
-sudden onset
Term
Acute pancreatitis
Definition
acute pancreatitis is the initial symptom in 5% of patients with gallstones
Term
Acute pancreatitis
Definition
the serum amylase level increases within 24 hours and the serum lipase level increases within 72 to 94 hours
Term
Acute pancreatitis - findings
Definition
normal size to enlargement - fat
hypoechoic texture (edema) darker

irregular borders

405 to 60% have gallstones

AP measurement 2mm
Term
Acute pancreatitis - findings
Definition
Pseudocyst formation (10%) bad complication
Term
Acute pancreatitis - findings
Definition
Phlegmon (18%) debris, blood
Term
Phlegmonous Pancreatitis
Definition
inflammatory process that spreads along fascial pathways
-hypoechoic, ill defined mass
Term
Chronic Pancreatitis - EXAM
Definition
Pancreatic Cancer
-chronic alcoholism
-biliary diseas
-20% develop pseudocysts or splenic vein thrombosis
Term
Splenic Vein
Definition
Posterior to the body of and tail of the pancreas
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