129b - Structure of the Abdomen Flashcards
Inferior view of the liver:
Which structure is labeled by C?
Quadrate lobe
(anterior)
Which artery might be compressed by a tumor in the head of the pancreas?
Superior mesenteric artery
Dorsal or ventral pancreatic bud:
Comes from the liver bud
Ventral
Which two strutures are most likely to be compresed by a pancreatic tumor?
Pancreatic duct and bile duct
Which structure is labled by D?
(Common) Bile duct
Which type of nerves will sense pain in the peritoneum?
Somatic sensory -> intense pain!
(Peritoneium is part of the body wall)
Signs of Portal Hypertension in the abdomen:
- Portal vein:
- Systemic vein:
- Clinical sign:
Signs of Portal Hypertension in the abdomen:
- Portal vein: Para-umbilical
- Systemic vein: Superficial epigastric
- Clinical sign: Caput medusae
Inferior view of the liver:
Which two structures are important for fetal blood flow?
Describe the flow
B - Umbilical vein
F - Ductus venosus
Blood flows from the umbilical vein -> ductus venosus -> IVC
(Bypasses the liver)
Which artery is labeled by #1?
Which large artery is it a branch of?
Ileocolic
SMA
Which 3 veins join to form the portal vein?
- Superior mesenteric vein
- Splenic vein
- Inferior mesenteric vein
- Usually joins the splenic vein first, but variations exist
A patient has an accumulation of peritoneal fluid in the lesser peritoneal sac. What landmark do you look for to insert a drainage canula into the epiploic foramen to enter the lesser sac?
Hepatoduodenal ligament
- Epiploic foramen is just below the hepatoduodenal ligament
- This will get you into the lesser peritoneal sac
Which artery is labeled by #8?
Which large artery is it a branch of?
Superior rectal
IMA
Signs of Portal Hypertension in the rectum:
- Portal vein:
- Systemic vein:
- Clinical sign:
Signs of Portal Hypertension in the rectum:
- Portal vein: Superior rectal
- Systemic vein: Internal iliac
- Clinical sign: Hemorrhoids
Which structure is labled by A?
Left hepatic duct
Bring bile from liver -> gallbladder
(I think Dr. Cochard just wants us to know that these are the hepatic ducts)
Why are left testicular varices more likely than right testicular varices?
Left renal vain can be compressed between the SMA and abdominal aorta
What is the most seriors consequence of a gallstone lodged in the ampulla of the major duodenal papilla?
Pancreatitis
- Bile cannot get out
- Backs up into the common bile duct and the major pancreatic duct
- Remember, they converge just before the spincter of Oddi
- Bile is corrosive to the pancreas
Pain in the right colic flexure will be referred to the ____ dermatome
The patient will feel:
Pain in the right colic flexure will be referred to the T12 dermatome
The patient will feel:
Lower abdominal pain
Which artery is labeled by #7?
Which large artery is it a branch of?
Sigmoid arteries
IMA
Pain in the upper sigmoid colon will be referred to the ____ dermatome
The patient will feel:
Pain in the upper sigmoid colon will be referred to the L2 dermatome
The patient will feel:
Upper thigh/lower back pain