What are 9 regions of the abdomen?
These planes divide the abdomen into nine regions:
- Right hypochondriac.
- Right lumbar (or flank)
- Right illiac.
- Epigastric.
- Umbilical.
- Hypogastric (or pubic)
- Left hypochondriac.
- Left lumbar (or flank)
What region is the appendix in?
right iliac region
The right iliac region contains the appendix, cecum, and the right iliac fossa. It is also commonly referred to as the right inguinal region. Pain in this area is generally associated with appendicitis.
Why is it important to know the 4 quadrants and 9 regions?
Organs in the nine regions of the abdomen It is important to know the anatomical regions (and quadrants) of the abdomen to correlate the pain to the organs contained in each area. For example, pain within the epigastric region should guide you to think about the stomach, liver, pancreas, duodenum, and adrenal glands.
What are the symptoms of epigastric pain?
| Epigastric | Clinical features |
|---|---|
| Peptic ulcer disease | Epigastric pain or discomfort is the most prominent symptom. |
| Gastroesophageal reflux disease | Associated with heartburn, regurgitation, and dysphagia. |
| Gastritis/gastropathy | Abdominal discomfort/pain, heartburn, nausea, vomiting, and hematemesis. |
What nine regions is the abdominal cavity divided into and where are they located?
In the upper abdomen, the right hypochondriac, epigastric, and left hypochondriac regions reside. In the middle abdomen are the right lumbar, umbilical, and left lumbar regions. In the lower abdomen, we have the right iliac fossa, hypogastric, and left iliac fossa regions.
What surrounds the appendix?
Like the rest of the digestive tract, the appendix is made of an inner layer of mucosa with submucosa, muscularis, and serosa layers surrounding it.