Flashcards in Spleen, Pancreas and Small Intestines Deck (49)
What are the functions of the spleen?
Prenatal fxn: Hematopoietic organ
After birth fxn: identify, remove and destroy expended RBCs and broken down platelets; recycles iron and globin
Site of WBC proliferation and immune surveillance and response
In which division of the abdominal cavity is the spleen located?
Left hypochondriac region (left upper quadrant)
The spleen lies under the cover of which ribs?
Left 9th -11th ribs
The spleen will most likely be damaged if the right-side lower ribs or upper lumbar transverse processes are fractured.
If the LEFT side lower ribs and transverse processes are injured, the spleen will most likely be injured.
A normal healthy spleen will most likely be palpable.
The spleen is usually not palpable.
Describe a normal and abnormal percussion sound of the spleen.
Normal: dull area over the 9th-11th ribs, should not go over the midaxillary line
Abnormal: dull area extension over the 9th-11th ribs
Where does the gastrosplenic ligament attach?
From the hilum of the spleen to the left part of the greater curvature
What does the gastrosplenic ligament contain?
Short gastric arteries and the left gastroepiploic artery
Describe the surface impressions of the spleen.
Colic impression: lies on the phrenicocolic ligament and the left flexure of the colon
Pancreatic impression: splenic hilum is related to the tail of the pancreas; constitutes the left boundary of the omentum
Where does the splenorenal ligament attach?
From the front upper half of the left kidney to the hilum of spleen
Arterial supply of the spleen
Splenic artery, left and right gastroepiploic arteries
What drains the spleen?
Where does the splenic lymphatic vessels leave?
Where do the nerves of the spleen originate from?
Coeliac nerve plexus
The pancreas can be found in which abdominal regions?
Epigastric and left hypochondriac regions
The pancreas is a retroperitoneal organ.
It crosses L1-L2 vertebral bodies.
The pancreas is divided into four parts. What are these parts?
Head, neck, body, tail
The posterior portion of the pancreas is covered with peritoneum.
Only the anterior portion of the pancreas is covered with peritoneum. The posterior portion is devoid of peritoneum.
What arteries supply the head of the pancreas?
Anterior and posterior superior pancreaticoduodenal arteries (from gastroduodenal artery)
Anterior and posterior inferior pancreaticoduodenal arteries (from SMA)
What arteries supply the body and tail of the pancreas?
Dorsal, inferior, and great pancreatic arteries
What veins drain the pancreas?
Pancreatic veins (tributaries of the splenic and SMV)
Most of the lymphatics of the pancreas terminate at the pancreaticosplenic lymph nodes.
Where can one find the pancreaticosplenic lymph nodes?
It lies on the splenic artery.
What innervates the pancreas?
Abdominopelvic splanchnic nerves and the CN X
Pancreatic secretions is mediated by which hormones?
Secretin and Chocystokinin
The duct of santorini is the main pancreatic duct, while the duct of santorini is the minor pancreatic duct.
The duct of the wirsung is the main pancreatic duct while the duct of santorini is the minor pancreatic duct.
The small intestines is from the ____ to the ____.
Pylorus to the ileocecal valve
The jejunum is the proximal 2/5 and the ileum is the distal 3/5.
The ileum and jejunum is attached to the posterior abdominal wall by messentery.
What are the three divisions of the small intestines.
Duodenum, jejunum, ileum