Digestive 4. (duodenum - rectum) Flashcards
Small intestine in latin
intestinum tenue
the duodenum and jejunum are attached by what to where?
by the mesoduodenum and mesojejunum = mesentary to the abdominal roof
duodenum made up of what parts
pars cranialis, -descendens, -transversa and -ascendens
the bile and pancreatic duct opens into what via what?
into pars cranialis of the duodenum via major duodenal papilla (papilla duodeni major)
the accessory pancreatic duct opens into what via what?
into pars descendens of the duodenum via the minor duodenal papilla (papilla duodeni minor)
in what part of the GI tract does most of the absorption of nutrients take place?
the jejunum
what structure can be found between the ileum and cecum?
the ileocecal fold (plica ileocecalis)
translate ileal opening and its found on what?
ostium ileale found on the papilla ilealis
ileal papilla is also known as the ileocecal valve
Large intestine in latin
intestinum crassum (also called the hindgut in zoology)
the longitudinal smooth muscle layer in large intestine of eq and su is gathered into separate, powerful muscle bands called?
Teniae coli
what parts does the large intestine consist of?
cecum, colon, rectum, and anal canal
what junction allows the cecum and colon to communicate?
the cecocolic orifice (ostium cecocolicum)
usually the cecum lies to right of the abdomen. In what species does it lie to the left?
pigs
what parts does the cecum consist of?
basis, corpus et apex ceci
what makes the car cecum unusual?
it has no direct connection with the ileum and is short and drawn into a spiral
location/position of the equine cecum
dorsal right flank, extends cranially, apex reaches the xiphoid process region
the eq and su cecums are distinctive for what?
teniae ceci and sacculations (made by haustra ceci)
how many teniae ceci do eq and su have resepctively?
4 and 3
how many teniae coli do eq have?
3
name the caudal recesses of the abdominal cavity in order from dorsal to ventral
Excavatio rectogenitalis
Excavatio vesicogenitalis
Excavatio pubovesicalis
function of the colon?
the site to retrieve nutrients remaining in digesta before excretion (water and electrolytes) and to store feces (excrement or “stercus”)
name the parts of the colon
colon ascendens, -transversum and -descendens
in Car where does the short ascending colon pass?
cranially on the right side
where does the transverse colon run?
runs from right to left, cranial to the root of the mesentery
where does the descending colon run?
colon descendens follows the left flank caudally and in pelvic cavity it is continued as the rectum without other visible demarcation
What structure can be found connecting the descending colon and ascending duodenum?
the duodenocolic fold (plica duodenocolica)
in su the ascending colon is long and convoluted, forming a conical mass on the left side – what is this called?
the spiral loop of the colon (ansa spiralis coli)
translate into latin: centripetal and centrifugal turns and what is the difference between these terms
gyri centripetales and
gyri centrifugales
centripetal is towards the center of the circle
centrifugal pushes away from the center
the swine’s centripetal outer intestinal loops have what detail that are absent in the smaller, centrifugal coils?
2 longitudinal teniae (teniae coli)