Question at position 3 _______ is the inflammation of an accessory organ of the GI tract that causes pain in the lower right quadrant of torso and can lead to peritonitis.CirrhosisDiverticulitisAppendicitis单项选择题
A
Cirrhosis
B
Diverticulitis
C
Appendicitis

Question

Question at position 3 _______ is the inflammation of an accessory organ of the GI tract that causes pain in the lower right quadrant of torso and can lead to peritonitis.CirrhosisDiverticulitisAppendicitis单项选择题

A

Cirrhosis

B

Diverticulitis

C

Appendicitis

BlackTom AI · Accepted Answer

Appendicitis is the inflammation of the vermiform appendix, an accessory structure attached to the cecum of the large intestine, and is the correct answer.

1) Relevant knowledge points and concepts
- The appendix is an accessory organ of the gastrointestinal (GI) tract located in the right lower quadrant (RLQ) of the abdomen (near the ileocecal junction).
- Appendicitis refers specifically to inflammation of the appendix.
- Classic presentation includes RLQ pain (often starting periumbilically then localizing), nausea, vomiting, fever, and elevated white blood cell count.
- If untreated, an inflamed appendix can perforate, spilling contents into the peritoneal cavity and causing peritonitis (diffuse inflammation of the peritoneum).
- Cirrhosis and diverticulitis are different conditions affecting other parts of the digestive system.

2) Step-by-step reasoning
- The question asks for an inflammation of an accessory GI organ that causes lower right quadrant pain and can lead to peritonitis.
- Identify which option names an accessory GI organ: appendix fits as an accessory (vestigial) organ attached to the large intestine.
- Appendicitis matches the described symptoms and complications (RLQ pain and potential progression to peritonitis after rupture).

3) Calculations
- None required.

4) Why the correct answer is correct
- Appendicitis literally means inflammation of the appendix. Its anatomical position explains RLQ pain. Rupture of an inflamed appendix releases bacteria and intestinal contents into the peritoneal cavity, producing peritonitis, which is a recognized serious complication.

5) Why the other options are incorrect
- Cirrhosis is chronic scarring of the liver (not an acute inflammation of an accessory organ) and typically presents with signs related to liver failure, not isolated RLQ pain.
- Diverticulitis is inflammation of diverticula (outpouchings of the colon), most commonly in the sigmoid colon producing left lower quadrant pain, not the RLQ characteristic of appendicitis.

6) Conclusion
- Therefore, the correct choice is Appendicitis, which matches the provided answer.

Question at position 3 _______ is the inflammation of an accessory organ of the GI tract that causes pain in the lower right quadrant of torso and can lead to peritonitis.CirrhosisDiverticulitisAppendicitis单项选择题

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