Ch. 17 Lecture Notes Flashcards
Components of the alimentary canal:
- Mouth
- Pharynx
- Esophagus
- Stomach
- Small intestine
- Large intestine
- Terminates at anus
Function of esophagus:
Convey food and saliva from laryngopharynx to stomach
Esophagus originates at:
C6
The esophagus joins the stomach at the esophagogastric juntion at:
T11
The expanded terminal end of the esophagus is:
the cardiac antrum
What are the four parts of the stomach?
- Cardia
- Fundus
- Body
- Pyloric portion
What portion of the stomach surrounds the esophageal opening?
The cardia
What part of the stomach is superior and fills the left hemidiaphragm?
The fundus
The interior of the stomach contains numerous longitudinal folds called:
Rugae
The last portion of the stomach is the _____. It consists of________ and ______.
Pyloric portion.
consists of the pyloric antrum and narrowed pyloric canal.
This portion of the stomach is a sharp angle at the esophagogastric junction.
Cardiac notch
The ______ is the opening between the esophagus and the stomach and the ______ controls the opening.
Cardiac orifice.
Cardiac sphincter.
The _______ is the opening between the stomach and the small intestine and ______ controls the opening.
Pyloric orifice.
Pyloric sphincter
The average emptying time for the stomach is:
2-3 hours
Where is peristalsis the greatest?
In the stomach and duodenum.
Exposure time for normal peristaltic activity in stomach is:
0.2 seconds
For esophagus projections, the CR usually enters:
At level of T5-T6
The PA stomach projection best demonstrates:
Stomach contour and duodenal bulb
PA oblique stomach (RAO) best demonstrates:
The pyloric canal and the duodenum
Duodenal bulb and loop in profile
PA axial stomach best demonstrates:
Greater and lesser curvatures in hypersthenic patients
AP oblique stomach (LPO) best demonstrates:
Fundus of the stomach
The recumbent right lateral stomach demonstrates:
Right retrogastric space, duodenal loop, and duodenojejunal junction
AP stomach with Trendelenburg best demonstrates:
Hiatal hernia (where part of the stomach sticks up in the chest through the diaphragm)
The small intestine extends from:
The pyloric sphincter to the ileocecal valve
What are the 3 portions of the small intestine?
- Duodenum
- Jejunum
- Ileum
What is the largest part of the small intestine?
Duodenum
The duodenum and jejunum are both attached to the posterior abdominal wall by:
Mesentary
What ways is Barium administered into the small intestine?
- Orally
- Reflux filling via large-volume barium enema
- Direct injection via a tube placed into the small bowel (termed enteroclysis)