S2_L4: Accessory Organs of the Gastrointestinal Tract Flashcards
Enumerate the 3 constrictions of the ureter
- Where renal pelvis joins the ureter in the abdomen
- Where it is kinked as it crosses pelvic brim (when it goes into the pelvic cavity)
- Where it pierces the bladder wall
Determine the corresponding descriptions of the cells of the pancreatic islets
- Produces insulin
- Secretes somatostatin
- Produces glucagon
A. Alpha cells
B. Beta cells
C. Delta cells
- B
- C
- A
The quadrate and caudate lobes of the right lobe of the liver is divided by the presence of what 3 structures?
- Gallbladder
- Ligamentum venosum
- Ligamentum teres
The lobules of the liver are its functional units consisting of hepatocytes arranged around the ___.
central vein
Two layer fold located at the anterior abdominal wall, found between right and left lobes of liver. Divides the liver into 2 lobes.
Falciform ligament
Known as the Round ligament. It is the free border of falciform ligament which is a remnant of the umbilical vein of the fetus in utero and becomes fibrous cords at birth. It passes into a fissure on the visceral surface of the liver and joins left branch of the portal vein in porta hepatis.
Ligamentum teres
Reflections of the parietal peritoneum and merges with the right upper layer of the falciform ligament. it suspends the liver from the diaphragm.
Coronary ligament
The sinusoids of the liver contain ___ that act as garbage collectors and have phagocytes that destroy worn out white blood cells, non-functional red blood cells, bacteria, and foreign matter in the venous blood draining from GIT.
Kupffer cells
Determine the corresponding descriptions of the following structures
- Ends below by piercing the medial wall of the second part of the duodenum about halfway down its length
- Tube/canal that would convey the bile stored in the gallbladder into the common bile duct
- Emerges from right lobe of liver
- Somewhat S-shaped, connects neck of gallbladder to common hepatic duct to form the bile duct
- Emerges from left lobe of liver
- Joined on the right side by the cystic duct from the gallbladder to form the bile duct.
A. Common hepatic duct
B. Right hepatic duct
C. Left hepatic duct
D. Cystic duct
E. Bile duct
- E
- D
- B
- D
- C
- A
This structure opens into the lumen of the duodenum by means of major duodenal papilla. The main pancreatic duct joins this, and together, they open into a small ampulla in the duodenal wall.
Hepatopancreatic ampulla (ampulla of Vater)
The circular muscle around the ampulla and terminal parts of both bile and pancreatic ducts that open separately into the duodenum.
Sphincter of Hepatopancreatic ampulla (Sphincter of Oddi)
Determine the corresponding descriptions of the parts of the gallbladder
- Directed upward, backward, and to the left
- In contact with visceral surface of the liver
- Rounded and projects below inferior margin of liver
- Continuous with the cystic duct, which turns into the lesser omentum to join the common hepatic duct, to form the bile duct
- Comes in contact with the anterior abdominal wall
A. Fundus
B. Body
C. Neck
- B
- B
- A
- C
- A
Determine the corresponding descriptions of the pancreatic ducts
- Drains the upper part of the head and then opens into the duodenum at minor duodenal papilla
- Aka Duct of Wirsung
- Opens into 2nd part of duodenum at about its middle with bile duct on major duodenal papilla
- Sometimes, it drains separately into the duodenum
- Aka Duct of Santorini
- Exit together with common bile duct through the ampulla
A. Main pancreatic duct
B. Accessory duct
- B
- A
- A
- A
- B
- A
Determine the corresponding relationships of the right ureter
- right colic and ileocolic vessel
- bifurcation of right common iliac artery
- right testicular (ovarian) artery
- terminal part of ileum
- psoas separating it from lumbar transverse process
- root of mesentery of small intestine
A. Anterior
B. Posterior
- A
- B
- A
- A
- B
- A
Determine the corresponding relationships of the left ureter
- bifurcation of left common iliac artery
- sigmoid colon and mesocolon
- left colic vessels
- left testicular (ovarian) vessels
A. Anterior
B. Posterior
- B
- A
- A
- A
Determine the corresponding relationships of the left kidney
- subcostal, iliohypogastric, and ilioinguinal nerves
- spleen, suprarenal gland
- psoas, quadratus lumborum, and transversus abdominis
- coils of duodenum
- stomach, pancreas
- 11th and 12th rib
A. Anterior
B. Posterior
- B
- A
- B
- A
- A
- B
Determine the corresponding relationships of the right kidney
- 2nd part of duodenum
- diaphragm, costodiaphragmatic recess of pleura
- liver
- 12th rib
- right colic flexure
- psoas, quadratus lumborum, and transversus abdominis
A. Anterior
B. Posterior
- A
- B
- A
- B
- A
- B
Determine the corresponding relationships of the spleen
- Diaphragm
- left colic flexure
- left pleura (costodiaphragmatic recess)
- left kidney (at medial border)
- left lung and 9th to 11th rib
- Stomach
A. Anteriorly
B. Posteriorly
- B
- A
- B
- A
- B
- A
Determine the corresponding relationships of the pancreas
- stomach
- origin of superior mesenteric artery
- transverse colon
- bile duct, portal and splenic veins, IVC, aorta
- lesser sac
- hilum of spleen
A. Anteriorly
B. Posteriorly
- A
- B
- A
- B
- A
- B
Determine the corresponding relationships of the gallbladder
- transverse colon
- inferior surface of the liver
- anterior abdominal wall
- first and second parts of the duodenum
A. Anteriorly
B. Posteriorly
- B
- A
- A
- B
Determine the corresponding relationships of the liver
- lower margins of both lungs
- gallbladder, duodenum
- hepatic flexure of the colon
- right and left pleura
- diaphragm
- fundus of the stomach
A. Anteriorly
B. Posteriorly
C. Both
- A
- B
- B
- A
- C
- B
The funnel-shaped expanded upper end of ureter located within the hilum of kidney. It receives major calyces.
Renal pelvis
Determine the corresponding blood supply of the ff structures
- Hepatic artery (30%) - brings oxygenated blood
- Cystic artery (right hepatic artery)
- Hepatic artery (from celiac) divides into right and left terminal branches entering porta hepatis
- Splenic and superior and inferior pancreaticoduodenal artery
A. Liver
B. Gallbladder
C. Pancreas
D. Bile duct
- A
- B
- A
- C
Determine the corresponding venous drainage of the ff structures
- Cystic vein drains directly to portal vein
- Drains to portal system
- Central vein drains to right and left hepatic vein
- Portal vein divides into right and left terminal branches that enter porta hepatis behind the arteries
A. Liver
B. Gallbladder
C. Pancreas
D. Bile duct
- B
- C
- A
- A