The primary function of the lymphoid system is
A) circulation of nutrients.
B) the transport of hormones.
C) defending the body against both environmental hazards and internal threats.
D) the production and distribution of plasma proteins.
E) both the transport of hormones and the production and distribution of plasma proteins.

Question

Quizplus · Accepted Answer

The lymphoid system is primarily responsible for defending the body against both environmental hazards (such as bacteria or viruses) and internal threats (such as cancer cells). It includes lymphatic vessels, lymph nodes, and other organs such as the spleen and thymus. While the lymphatic system does transport fluids (lymph), it does not play a major role in the circulation of nutrients or hormones, nor does it produce or distribute plasma proteins.

The Primary Function of the Lymphoid System Is