The two lobes of thyroid gland are joined by a horizontal connection called :

Options

A. Inter thyroidal connective
B. Inter thyroidal commissure
C. Interme diary lobe
D. Isthumus

Answer

To answer the question, "The two lobes of the thyroid gland are joined by a horizontal connection called:", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Thyroid Gland**:
- The thyroid gland consists of two lobes located on either side of the trachea (windpipe) in the neck region.

2. **Identify the Connection Between the Lobes**:
- The two lobes of the thyroid gland are not separate; they are connected by a structure that allows them to function together.

3. **Name the Connection**:
- This horizontal connection between the two lobes is known as the **isthmus**. The isthmus is a thin band of tissue that connects the right and left lobes of the thyroid gland.

4. **Conclusion**:
- Therefore, the correct answer to the question is **isthmus**.

### Final Answer:
The two lobes of the thyroid gland are joined by a horizontal connection called the **isthmus**.

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