High Yield Flashcards
The round ligament of Teres was embryonically?
Umbilical vein
The median umbilical fold houses what?
Obliterated urachus
The medial umbilical fold houses?
Obliterated umbilical arteries
Lateral umbilical folds house what?
Inferior epigastric arteries
The umbilical area lies at what dermatome?
T10
What dermatome is the epigastrium at?
T7-9
What dermatome is the inguinal ligament at?
L1
What is a minor duodenal papilla secrete?
Pancreatic juices
Major duodenal papilla secretes?
Bile and pancreatic juices
What are the two types of ectopic tissues contained within a Meckel’s Diverticulum?
Stomach and pancreatic
What is Murphy’s Sign?
Under the right costal margin - shows inflammed gall bladder
Parasympathetic innervation is coordinated by what two areas?
Vagus nerve - foregut and midgut Pelvic splanchnic - hindgut
What part of the duodenum is derived from foregut?
First and second
What organs are derived from foregut, midgut and hindgut?

What is the distribution of the femoral nerve?
anterior thigh muscle
Describe the innervation of the adrenal gland.
No parasympathetic
Sym - pre gang to medulla secrete adrenalin
What are the characteristics of gastric lymphoma and GIST?

What are the characteristics of carcinoid tumor?
Clinically - facial flushing and tricuspid insufficiency
Secretion of serotonin and biogenic amines
What is a good biomarker for colonic cancer for follow up but not diagnosis?
CEA
What is secreted by carcinoid tumors?
POLYPEPTIDE biogenic amine
not steroidal
Cirrhosis can lead to what results?
Decreased albumin
Esophageal varicies
Decreased degradation of estrogen
decreased breakdown of ammonia
What are the characteristics of primary biliary cirrhosis?
AMA+
Lymphocytic cholangitis
Chronic bile duct disease
Women 90% of time
Increased alk phos and GGT
Florid duct
What are the characteristics of primary sclerosing cholangitis?
Increased risk of cholangiocarcinoma
Men more than women
P-ANCA
Associated with UC
What are the characteristics of cholangiocarcinoma?
Associated with PSC and thorotrast exposure
Adenocarcinoma - gland forming
Aflatoxin B puts a person at increased risk for what?
HCC
Pancreatic adenocarcinoma is most often associated with what genetic mutation?
KRAS
HCC is most commonly associated with what genetic mutation?
B-catenin
Cholangiocarcinoma is associated with what exposure?
Thorotrast
Hep B has what type of transmission?
Vertical or blood
What is the most common risk for HepC?
IV droogs
Most common exposure for HepA?
Shellfish and fecal oral route
What bacteria is on poultry?
Salmonella
Taking a ton of asprin can put a person at risk for what?
Acute gastritis - PGE2 inhibitor
Lower 1/3rd of esophagus and associated GERD
Adenocarcinoma
Drinking and smoking associated with upper part of esophagus?
Squamous
What is type of person to be affected by hepatic adenoma?
Young women using oral contraceptives
Exposure to what can yield angiosarcoma?
Vinyl chloride and thorotrast
What does the urorectal septum do?
Divides the cloaca into the urogenital sinus and primitave “something”
Mallory bodies are derived from what?
Keratin intermediate filaments
Meissners plexus in the submucosa is in charge of what?
Luminal size and blood flow
Auerbachs plexus is in charge of what?
Peristalsis - ME
What are the characteristics of Sjorgerns syndrome?
Positive ANA and failure to reabsorb Na
What is the regulator of salivary secretions?
Autonomic nervous system
Left testicular vein drains into where?
Left renal vein
Right testicular vein drains into where?
IVC
Kufper cells come from where?
Mesoderm
What is the normal rotation of the midgut?
270 degrees counterclockwise
What sugar isnt sodium dependent?
Fructose
Saliva is what to plasma?
Hypotonic
What accounts for the LES state?
Tonic contraction due to intrinsic properties
Ileal inflammation leads to?
Decreased absorption of B12, fat and bile acid
Acid reflux can do what to the esophagus?
Secondary peristaltic contractions
What is the sodium-glucose transporter in the intestine?
SGLT1
Removal of the gut flora can do what?
Increase blood nitrogen
Intrinsic factor binds to B12 where?
Duodenum
What happens in dumping syndrome?
Too quick of release of contents from stomach - rapid insulin release and hypoglycemia
Lack of pancreatic lipase will have what affect?
Decreased absorption of fat soluble vitamins
Steatorrhea