Which area does the right lymphatic duct collect lymph fluid from?

The right lymphatic duct is responsible for draining lymph fluid from specific areas of the body. It primarily collects lymph from the right arm, the right side of the head and neck, as well as the right portions of the thorax. This anatomical understanding is foundational for correctly identifying the function of the right lymphatic duct.

In contrast to this, options that include other areas, such as the left arm, left side of the head, or the lower body do not accurately represent the regions drained by the right lymphatic duct. This duct is specifically limited to the right upper quadrant of the body, which is why it plays a crucial role in maintaining the lymphatic fluid balance for those regions exclusively.