name the sphincter that is composed of smooth muscle of the muscularis externa:
internal anal sphincter
name the sphincter that is composed of skeletal muscle of the pelvic diaphragm:
the external anal sphincter
the hepatopancreatice sphincter spearates the: hep-at-o pnacreatatic
pancreas and the duodenum
the ileocecal sphincter spearates the:
ileum of small intestine and the cecum of the large intestine
the internal and external sphincters separate the:
rectum and the anus
the chisel-like cutting teeth used to bite off a piece of food are called:
incisors
teeth that are pointed and act to puncutre and shred food are called:
canines
teeth that have broad surfaces that are adapted for crushing and grinding food are called:
premolars and molars
a short distance from the liver to the superior margin of the stomach is, it fxns to hold the organs in proper orientation is called:
lesser omentum (o-men-tum)
a large, fatty, ''apron'' that hangs from the inferior margin of the stomach and loosely covering the small intestine is, nad fxns as a passageway for nerves, vessels, and immnunity is called the:
greater omentum (o-men-tum)
the fxn of the villi in the small intestine is:
increase the absorptive surface area of the small intestine and contain brush border enzymes, chyme must contact brush border for digestion to occur
contain absorptive cells and mucus secreting cells
list the four basic layers of the GI tract from the lumen outward:
mucosa
submucosa
muscularis externa
serosa
made of columnar epithelium whose cells are disgned for nutrient absorption and for secretion of substances necessary for diegestion is called:
mucosa layer of GI tract
this layer of the GI tract contains many blood and lymph vessels is called:
submucosa
the nervus plexus within the submucosa that regulates the secections of the digestive tract is called the:
submucosal nerve plexus
the layer of the GI tract that is composed of muscle is called the:
muscularis externa
the layer of the musclaris externa that is responsible for narrowing motions is called the:
circular smooth muscle
the layer of the musclaris externa that is responsible for shortening motions is called:
the longtiduinal smooth muslce
between the two layers ( circular and longitudinal) of mucsle is a second nerve plexus that is responsible for regulating motility is called:
myenteric nerve plexus (my-ent- eric)
the outermost layer of the GI tract that is a thin layer of connective tissue that forms part of the visceral peritoneum is called the:
serosa
Which of the following is responsible for regulating motility in the GI tract?
Put the following structures in order as a molecule of bile travels from the liver, is stored in the gallbladder, and then moves to the GI tract during a meal. Note: the molecule will travel through the cystic duct twice.
bile duct
cystic duct
duodenem
common hepatic duct
gallbladder
hepatopancreatic sphincter
right hepatic duct
cystic duct
right hepatic duct
common hepatic duct
cystic duct
gallbladder
cystic duct
bile duct
hepatopancreatic sphincter
duodenem
Which of the following structures connects the stomach to the liver and keeps these organs in the proper orientation?