Pylorus is an opening from:

Options

A. intestine into rectum
B. oesophagus into stomach
C. stomach into intestine
D. mouth cavity into oesophagus

Explanation

**Step-by-Step Text Solution:**

1. **Understanding the Digestive System**: The digestive system consists of various organs that work together to break down food and absorb nutrients. One of the key components of this system is the stomach, which plays a crucial role in digestion.

2. **Identifying the Pylorus**: The pylorus is a specific part of the stomach. It is located at the lower end of the stomach and serves as a gateway to the next part of the digestive system.

3. **The Role of the Pyloric Sphincter**: The pylorus is guarded by a muscular valve known as the pyloric sphincter. This sphincter controls the passage of partially digested food from the stomach into the small intestine.

4. **Connecting to the Small Intestine**: The small intestine is divided into three parts: the duodenum, jejunum, and ileum. The pylorus specifically opens into the duodenum, which is the first section of the small intestine.

5. **Conclusion**: Therefore, the pylorus is an opening from the stomach to the duodenum, which is the initial part of the small intestine.

**Final Answer**: The pylorus is an opening from the stomach to the duodenum (the first part of the small intestine).

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