Superior mesenteric artery supplies blood to

Options

A. Pancreas and ileum
B. Hepatic and gastric arteries
C. Both(1)and (2)
D. Stomach and proximal half of large intestine

Answer

To determine what the superior mesenteric artery supplies blood to, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Origin of the Superior Mesenteric Artery**:
- The superior mesenteric artery (SMA) arises from the anterior surface of the abdominal aorta. This is important as it helps us understand the areas it supplies.

2. **Understand the Function of the Superior Mesenteric Artery**:
- The SMA is responsible for supplying oxygenated blood to various parts of the intestine and some associated organs.

3. **List the Key Structures Supplied by the SMA**:
- The SMA supplies blood to the following structures:
- The duodenum (the first part of the small intestine)
- The jejunum (the middle section of the small intestine)
- The ileum (the last part of the small intestine)
- The cecum (the beginning of the large intestine)
- The appendix
- The ascending colon (the first part of the large intestine)
- The transverse colon (the middle part of the large intestine)
- The pancreas (specifically the head and part of the body)

4. **Evaluate the Options Given in the Question**:
- Option 1: Pancreas and ileum – This is correct as both are supplied by the SMA.
- Option 2: Hepatic and gastric arteries – This is incorrect as these arteries are not supplied by the SMA.
- Option 3: Both one and two – This is incorrect since option two is wrong.
- Option 4: Stomach and proximal half of large intestine – This is incorrect as the stomach is primarily supplied by the gastric arteries.

5. **Select the Correct Answer**:
- Based on the analysis, the correct answer is option 1: the superior mesenteric artery supplies blood to the pancreas and ileum.

### Final Answer:
The superior mesenteric artery supplies blood to the pancreas and ileum.

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