Lymphatic vessels from the lower body part from

Options

A. Right lymphatic duct
B. Thoracic duct
C. Carotid duct
D. Jugular duct

Answer

To solve the question regarding which lymphatic vessel collects lymph from the lower body parts, let's analyze the options provided:

1. **Right Lymphatic Duct**: This duct primarily collects lymph from the upper right side of the body, including the right side of the head and neck. Therefore, it does not collect lymph from the lower body.

2. **Thoracic Duct**: The thoracic duct is the largest lymphatic vessel in the body. It collects lymph from a significant portion of the body, including the lower body parts. It is responsible for draining lymph from approximately 75% of the body's lymphatic system, making it the main vessel for lymph collection from the lower body.

3. **Carotid Duct**: This duct is associated with the embryonic dorsal aorta and is not a primary vessel for lymph drainage in adults. It does not collect lymph from the lower body.

4. **Jugular Duct**: The jugular duct is located in the neck and primarily collects lymph from that region. It does not serve to collect lymph from the lower body.

Based on this analysis, the correct answer is the **Thoracic Duct**, as it is the vessel that collects lymph from the lower body parts.

### Step-by-Step Solution:
1. Identify the lymphatic vessels mentioned in the question.
2. Analyze the function of each vessel:
- Right Lymphatic Duct: Collects lymph from the upper right side of the body.
- Thoracic Duct: Collects lymph from the majority of the body, including the lower body.
- Carotid Duct: Associated with embryonic development, not relevant for adult lymph drainage.
- Jugular Duct: Collects lymph from the neck area.
3. Determine which vessel is responsible for collecting lymph from the lower body.
4. Conclude that the **Thoracic Duct** is the correct answer.