RAD 112
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each of the black spaces below before clicking
on it to display the answer.
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| What is the function of the esophagus? | show 🗑
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| Where does the esophagus originate? | show 🗑
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| show | T11
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| Where does the esophagus pass through the diagphragm? | show 🗑
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| What is the expanded terminal end of the esophagus called? | show 🗑
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| Describe the stomach. | show 🗑
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| show | CARDIA: section surrounding esophageal opening
FUNDUS: superior portion fills left hemidiaphragm
BODY: located btwn fundus/pylorus, interior surface covered numerous longitudinal folds called RUGAE
PYLORUS: narrow end (pyloric antrum/pyloric canal)
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| show | the right border
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| What is the greater curvature? | show 🗑
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| show | sharp angle at the esophagogastric junction
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| show | Cardiac (Esophageal) sphincter and pyloric sphincter
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| What are the openings in/out of the stomach called? | show 🗑
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| show | body habitus - hypersthenic (high and transverse) asthenic ( low and more midline);
body position
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| show | storage area for food during digestion; also processes food bolus into material called chyme
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| show | secretes acids, enzymes and other chemicals to break down food
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| What is the chemically and mechanically altered food called that leaves the stomach? | show 🗑
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| show | involuntary contraction waves that propel contents toward rectum
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| How often does peristalsis occur in the stomach? | show 🗑
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| show | 2 - 3 hours
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| show | 2 - 3 hours
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| What is contrast media? | show 🗑
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| What is most common contrast media for gastro studies? What is the alternative? | show 🗑
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| Why is water soluble iodinated contrast media used as alternative to Barium? | show 🗑
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| What are the essential projections of the esophagus? | show 🗑
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| What are the essential projections of the stomach and duodenum? | show 🗑
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| What is the lower gastrointestinal tract? | show 🗑
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| show | - large intestine (terminates at anus)
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| Describe the small intestine. | show 🗑
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| show | - from pyloric sphincter to jejunem
- 8 to 10 inches and C shaped
- first portion called duodenal bulb
- joins jejunem at duodenojejunal flexure
- flexure is supported by suspensory muscle called LIGAMENT OF TRIETZ
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| show | 1) digests and absorbs food
2) gastrointestinal transit
3) uses peristalsis
4) average transit time to ileocecal valve 2 -3 hours
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| show | - use shielding, but do not compromise clinical objectives of exam
- use close collimation
- use optimum technique factors
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| show | 1) orally
2) reflux filling via large-volume barium enema
3) direct injection via tube placed into small bowel (enteroclysis)
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| show | orally
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| What is patient prep for small intestine orally administered exam? | show 🗑
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| Why is it called small bowel series? | show 🗑
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| show | -to view superior and lateral shift of stomach, improving visualization of duodenum and jejunum
- prevent compression of overlapping loops of intestine
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| Why is prone used? | show 🗑
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| How does technologist determine time intervals between images? | show 🗑
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| When is the exam considered completed? | show 🗑
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| show | a musculomembranous tube that extends from ileocecal valve to anus
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| What is the position of the large intestine? | show 🗑
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| show | - cecum
- colon
- rectum
- anal canal
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| show | about 5 feet
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| show | haustra
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| show | taeniae coli
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| What is the cecum? | show 🗑
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| show | vermiform appendix
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| show | Ascending
Transverse
Descending
Sigmoid
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| show | right colic flexure (hepatic)
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| show | left colic flexure (splenic)
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| show | an S shaped loop that ends at rectum at level of 3rd sacral segment
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| What extends from sigmoid to anal canal? | show 🗑
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| show | anal canal
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| What is the function of the large intestine? | show 🗑
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| Why is carbon dioxide used most commonly in double contrast studies? | show 🗑
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| When are water soluble contrast agents used? | show 🗑
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| Why must the large intestine be completely empty prior to exam? | show 🗑
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| What conditions limit patient preparation for large bowel study? | show 🗑
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| Describe large bowel cleansing methods. | show 🗑
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| What are the components of the GI system? | show 🗑
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Created by:
Larobbins
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