The digestive glands which are stimulated by neural signals but not hormones are

Options

A. gastric glands
B. liver
C. pancreas
D. salivary gands

Answer

To solve the question regarding which digestive glands are stimulated by neural signals but not hormones, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify which digestive glands are activated by neural signals rather than hormones.

2. **Evaluate the Gastric Glands**:
- Gastric glands are stimulated by the sight and smell of food, which are neural signals.
- They are also influenced by hormones such as gastrin.
- **Conclusion**: Gastric glands are stimulated by both neural signals and hormones.

3. **Evaluate the Liver**:
- The liver functions based on the presence of food in the digestive system and responds to hormones like insulin and glucagon.
- **Conclusion**: The liver is influenced by hormones and does not solely rely on neural signals.

4. **Evaluate the Pancreas**:
- The pancreas releases its secretions in response to food entering the duodenum, which is a neural response.
- However, it is also stimulated by hormones such as cholecystokinin (CCK).
- **Conclusion**: The pancreas is influenced by both neural signals and hormones.

5. **Evaluate the Salivary Glands**:
- Salivary glands are primarily stimulated by neural signals, such as the sight, smell, or taste of food.
- They do not rely on hormones for their activation.
- **Conclusion**: Salivary glands are stimulated by neural signals only.

6. **Final Answer**: Based on the analysis, the digestive glands that are stimulated by neural signals but not hormones are the **salivary glands**.