A client is cutting vegetable for dinner and accidently cuts his finger. What response is desirable to destroy foreign agents such as microorganisms to prevent infection from developing in the finger?

Question

A) A cell-mediated response
B) The release of antibodies
C) The release of memory cells
D) Passive immunity

Answer 1

B
Feedback:
Antibodies are chemical substances that destroy foreign agents such as microorganisms, which decrease the risk of infection at the site. A cell-mediated response occurs when T cells survey proteins in the body, actively analyze the surface features, and respond to those that differ from the host by directly attacking the invading antigen such as an organ transplant. Memory cells convert to plasma cells on reexposure to a specific antigen. When activated, B cells accumulate in lymphoid tissues and result in swollen lymph nodes. Passive immunity develops when ready-made antibodies are given to a susceptible person. They provide immediate but short- lived protection from an invading antigen.