Week 2 Flashcards
what is the plica semilunaris
semilunar folds of mucosa separating the haustra coli when viewed from the
luminal side
differnce between left and right colic flextures
the right lies more inferior
appendices epiploicae
(fatty appendages)
haustra coli
(sacculations)
teniae coli
(longitudinal muscle bands)
where is the major duodenal papilla found?
in the wall of the descending (second) part of the duodenum
where does the the anorectal juction angulate?
at the perineal flexure
how does is the anal colomn aaranged?
longitudinally
what are imagine contrast studies used for?
used to visualise the entire GI tract from pharynx to rectum
e most useful for
detecting mass lesions and structural abnormalities (eg: tumours and strictures)
what is the Single-contrast studies aim
to fill the
lumen with radiopaque material, outlining the structure
pros of double contrast studies?
more detailed
how does the double constrast work
in which a small amount of high-density barium is used to coat the mucosal surface, while inflation with gas
distends the organ and enhances contrast
how is double contrast documented
Either video or plain films can be taken
when is video good?
when assessing motor disorders (e.g. cricopharyngeal spasm, achalasia, etc)
