Approximately how much large is whole digestive system in a healthy human ?

Options

A. 3 m
B. 5 m
C. 7 m
D. 9 m

Answer

To determine the approximate length of the whole digestive system in a healthy human, we can follow these steps:

1. **Identify the Components of the Digestive System**: The human digestive system includes various parts: the mouth, esophagus, stomach, small intestine (which consists of the duodenum, jejunum, and ileum), large intestine (which includes the ascending colon, transverse colon, descending colon, and rectum), and finally the anus.

2. **Estimate the Length of Each Part**:
- The **esophagus** is about 10 inches (approximately 25 cm) long.
- The **stomach** is around 12 inches (approximately 30 cm) long.
- The **small intestine** is the longest part, measuring about 20 feet (approximately 6 meters).
- The **large intestine** is about 5 feet (approximately 1.5 meters) long.

3. **Calculate the Total Length**:
- Convert all measurements to feet or meters for consistency.
- Total length in feet:
- Small intestine: 20 feet
- Large intestine: 5 feet
- Esophagus: 0.83 feet (10 inches)
- Stomach: 1 foot (12 inches)
- Total = 20 + 5 + 0.83 + 1 = 26.83 feet
- Convert to meters (1 foot = 0.3048 meters):
- Total length in meters = 26.83 feet × 0.3048 = approximately 8.18 meters.

4. **Conclusion**: The approximate length of the whole digestive system in a healthy human is about 30 feet or approximately 9 meters.