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35 Cards in this Set

  • Front
  • Back
alimentary canal extends from __________ to __________ and has how many histological layers?
oral cavity to anus
GI tract contains (5)
distal esophagus
small/large intestines
Function of the GI tract
digestion/absorption of nutrients
3 divisions of GI tract and associated glands
foregut - distal esophagus to duodenal (?) sphincter
midgut - rest of duodenum to transverse colon
hindgut - descending colon to rectum

(based on blood supply)
What lines the internal surface of the abdominal body wall and cover the viscera
Serous peritoneum: parietal peritoneum (on body wall) and visceral peritoneum (viscera)
space between the visceral and parietal peritoneum
Peritoneal cavity. Contains only serous fluid
Organs suspended from posterior body wall (4).

What are they suspended by

What is the function of what they are suspended by?
jejunum, ileum, transverse/sigmoid colon

mesentery (double layer of peritoneum)

permits mobility and conducts nerves and vessels to organs
retroperitoneal organs (4)

(and definition)
duodenum, pancreas, ascending/descending colons

fused with posterior body wall at some point in development
Synthed by
Flows from ____ to _____
stored and concentrated where
-synthed by liver hepatocytes
-flows from liver to duodenum
-emulsifies fat
-stored in gall bladder
What carries digestive enzymes from the pancreas to the duodenum
main pancreatic duct
Spleen is classified as ________ structure based on _________ __________, however is not a derivative of the ______________
forgut; blood supply; gut tube
What supplies oxygenated blood to the GI tract/accessory organs
-celiac trunk
-superior mesenteric artery
-inferior mesenteric artery

Venous drainage from GI tract flows into __________
hepatic portal vein
how do hepatocytes receive nutrients and oxygen?
nutrient-rich blood from the HEPATIC PORTAL VEIN mixes with oxygenated blood from the CELIAC TRUNK in SINUSOIDS between PLATES OF HEPATOCYTES
What controls the GI tract?
Enteric nervous system:
-neurons in gut wall
-modulated by ANS
Preganglionic ____________________ nerves synapse in ganglia associated w/ _________. Where do postganglionic neurons travel to
-thoracic and lumbar splanchnic nerves
-3 gut arteries
-periatrial plexus
Where does the (original?) innervation to the foregut and midgut come from?
vagus nerve
Hindgut is innervated (?) by
pelvic splanchnic nerves (S2-4)
Where are postganglionic parasympathetic nerves located?
w/in gut wall
What does mesentary attach?

-organ to wall (2 layers of peritoneum)

-organ to organ
Where is the access to the lesser sac?
Behind the stomach -> omental (?) foramen
Location (quadrant):
Small intestines
-all over (lower mainly)
What is the joint between the small intestines and cecum?
iliocecal valve
vessels received
-Mostly retroperitoneal (except beginning w/ the hepatoduodenal lig.)
-(pyloric sphinctor)
-common bile duct, main pancreatic duct
mesentary attached to the colon
Large Intestine: features (3)
Tenia coli - a 3 stripe band of muscle running longitudinally down the middle
Haustra - bulges "house" the poop
Epiploic/omental appendices - fat hanging off
What ligament(s) are found between the R&L lobes of the liver?
-falciform ligament

-Ligamentum teres: remnant of umbilical vein
Liver lobes
Left, right, caudate, quadrate
Porta hepatis
-Portal vein
-Hepatic artery
Common hepatic duct
through what vessel does venous blood travel a)in, and b)out of the liver?
-portal vein (in)

-hepatic vein (out)
branching of common bile duct
Common bile & cystic duct (gall bladder) <- common hepatic duct <- left/right hepatic ducts?
Flow of bile
hepatocytes (liver)
R/L hepatic ducts
common hepatic duct
common bile duct
major duodenal papilla
Celiac trunk branches (3)
Splenic artery
Left gastric artery
common hepatic artery
Portal vein:
major tributaries (3)

capillary sets (2)
-splenic vein
-inf mesenteric vein
-superior mesenteric vein

-GI wall
-Liver sinusoids
Parasymp nerves tend to innervate?

-smooth muscle, glandular secretion

-smooth muscle, blood vessels