Part of the small and large intestine absorbs water and via feces, it is expected. Arrange these in order of the amount of water absorbed or secreted from greatest to smallest.

Options

A. Colon, jejunum, ileum
B. Colon, ileum, jejunum
C. Jejunum, ileum, colon
D. Ileum, jejunum, colon

Answer

To solve the question regarding the order of water absorption in the parts of the small and large intestine, we can follow these steps:

### Step 1: Understand the Structure of the Intestine
The small intestine is divided into three main parts:
- Duodenum
- Jejunum
- Ileum

The large intestine includes:
- Cecum
- Colon (which is further divided into ascending, transverse, and descending)
- Rectum

### Step 2: Identify Water Absorption in the Small Intestine
Among the parts of the small intestine:
- **Jejunum**: This is the most coiled part and has the largest surface area, making it the primary site for water absorption.
- **Ileum**: This part absorbs a significant amount of water but less than the jejunum.

### Step 3: Identify Water Absorption in the Large Intestine
In the large intestine:
- **Colon**: The colon, particularly the ascending colon, is responsible for absorbing water. The rectum absorbs minimal water compared to the colon.

### Step 4: Rank the Parts by Water Absorption
Based on the information gathered:
1. **Jejunum**: Greatest amount of water absorbed.
2. **Ileum**: Next greatest amount of water absorbed.
3. **Ascending Colon**: Absorbs a significant amount of water but less than the ileum.

### Final Order
Thus, the order of the parts of the intestine from greatest to smallest amount of water absorbed is:
1. Jejunum
2. Ileum
3. Ascending Colon

### Answer
The correct sequence is: **Jejunum > Ileum > Ascending Colon.**