……………....is a heterocrine gland.

Explanation

### Step-by-Step Solution:

1. **Understanding Heterocrine Glands**:
- A heterocrine gland is defined as a gland that has both endocrine and exocrine functions. This means it can secrete hormones directly into the bloodstream (endocrine function) and also release substances through ducts (exocrine function).

2. **Identifying Examples of Glands**:
- Endocrine glands are ductless and include glands like the pituitary gland, which secretes hormones directly into the bloodstream.
- Exocrine glands have ducts and include glands like the liver, which secretes substances through ducts to target organs.
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