Lower Abdomen Flashcards
What is the Cardiac orifice?
Entry into the stomach from esophagus
What is the Pyloric sphincter?
Exit from the stomach to the duodenum.
The Stomach is lined with ________.
Rugae (temporary folds within the body of the stomach)
The _________ of the small intestine is characterized as fixed and relatively immobile.
Duodenum
The ____________ of the small intestines is characterized as tethered, but very mobile and is combines of 3 segments (each around 20ft)
Jejunum & Ileum
What is the Plicae Circularis and where is it?
Permeant folds within the intestine that become more diffuse distally.
The _______ empties into the _______ at the ileocecal junction.
- Ileum
- Cecum
The Duodenum is divided into 4 parts what are they?
- Superior part
- Descending part
- Inferior part
- Ascending part
- Shaped like a circle hook
What is Meckel’s (ileal) diverticulum? Clinical notes?
is a remnant of embryonic yolk stalk that appears as a finger like pouch.
- Located approx. 1 m proximal to ileocecal valve.
- CLINICAL NOTE = May become inflamed and mimic appendicitis.
The Large intestine is divided into……
5 segments and 2 flexures
- Cecum
- Asc. colon
- Transverse colon
- Desc. Colon
- Sigmoid colon (empties into rectum)
- Right colic (hepatic) Flexure
- Left Colic (Splenic Flexure
The large intestine terminates where?
rectum
The appendix opens into the _______.
cecum inferior to ileocecal orifice.
Triangular mesentery between appendix and Ileum is called what?
Mesoappendix
Clinical notes on the appendix?
Appendicitis
- Vague pain begins in periumbilical region from afferent pain referred to T10 level.
- Severe pain later from R. Lower quadrant.
- Pain most severe over spinoumbilical point between the ASIS & Umbilicus
Differences between the arterial supply in the ileum and jejenum is what?
Jejunum = longer vas recta & shorter arterial arcades.
Ileum = Shorter vas recta & longer arterial arcades.
What is the Teniae coli?
Specialized region of colon = 3 smooth muscle bands paralleling the length of the colon.
What is the Haustra coli?
Specialized area of colon = outpouchings produced by teenier coli.
What is the Epiploic appendages?
Specialized region of colon = Fat tags found along the colon.