What is the physical sign that a person's immune system is involved in the proliferation of T cells in response to an infection?
A)The skin is reddened.
B)The lymph nodes in the region of the infection become enlarged.
C)The skin is bruised in the infected region.
D)The lymph nodes shrink because they are secreting so much material.
E)The temperature of the infected region decreases.

Question

Quizplus · Accepted Answer

Enlargement of lymph nodes in the region of infection is a physical sign that the immune system is involved in the proliferation of T cells. Lymph nodes are specialized structures that serve as primary sites for activation and proliferation of T cells in response to an infection. Therefore, their enlargement indicates the immune response is activated and T cell proliferation is taking place to fight the infection.

What Is the Physical Sign That a Person's Immune System