Salivary glands that are absent in humans are

Options

A. Infra orbital
B. Parotid
C. Sub-maxillary
D. Sub-lingual

Answer

To answer the question about which salivary glands are absent in humans, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Salivary Glands Present in Humans**:
Humans have four pairs of salivary glands. These are:
- Parotid glands
- Submaxillary (or Submandibular) glands
- Sublingual glands
- Minor salivary glands (which can be referred to as normal salivary excretory glands)

2. **Determine the Salivary Glands Absent in Humans**:
After identifying the salivary glands present in humans, we need to find out which ones are absent. The salivary gland that is notably absent in humans is the **Infraorbital gland**.

3. **Compare with Other Species**:
It is important to note that the Infraorbital gland is present in some other species, such as rabbits. This comparison helps to clarify that while humans lack this gland, it is not universally absent in all mammals.

4. **Conclusion**:
Based on the information gathered, the salivary gland that is absent in humans is the **Infraorbital gland**.

### Final Answer:
The salivary glands that are absent in humans are the **Infraorbital glands**.

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