IMMUNOLOGY

OVERVIEW OF THE IMMUNE SYSTEM

LYMPHATIC TISSUES AND ORGANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The lymphocytes that kill virus-invaded and cancerous body cells and are also involved in graft rejections are the ____
A
B cells
B
plasma cells
C
memory cells
D
killer T cells
Explanation: 

Detailed explanation-1: -Cytotoxic T cells kill infected cells, whereas helper T cells help activate macrophages, B cells, and cytotoxic T cells. Effector helper T cells secrete a variety of signal proteins called cytokines, which act as local mediators.

Detailed explanation-2: -Cytotoxic T cells: These lymphocytes mature in the thymus and are responsible for killing cells infected with viruses.

Detailed explanation-3: -The T and B lymphocytes (T and B Cells) are involved in the acquired or antigen-specific immune response given that they are the only cells in the organism able to recognize and respond specifically to each antigenic epitope.

There is 1 question to complete.