NURSING ANM AND GNM

NURSING EXAM QUESTIONS

HUMAN ANATOMY PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A primary function of lymphocytes is to:
A
release substances that initiate blood clots
B
produce enzymes that dissolve blood clot
C
phagocytize damaged cells
D
act against foreign substances
Explanation: 

Detailed explanation-1: -Through receptor molecules on their surfaces, lymphocytes are able to bind antigens (foreign substances or microorganisms that the host recognizes as “nonself”) and help remove them from the body. Each lymphocyte bears receptors that bind to a specific antigen.

Detailed explanation-2: -B lymphocytes, also called B cells, create a type of protein called an antibody. These antibodies bind to pathogens or to foreign substances, such as toxins, to neutralize them. For example, an antibody can bind to a virus, which prevents it from entering a normal cell and causing infection.

Detailed explanation-3: -White blood cells are the key players in your immune system. They are made in your bone marrow and are part of the lymphatic system. White blood cells move through blood and tissue throughout your body, looking for foreign invaders (microbes) such as bacteria, viruses, parasites and fungi.

Detailed explanation-4: -B lymphocytes become cells that produce antibodies. Antibodies attach to a specific antigen and make it easier for the immune cells to destroy the antigen. T lymphocytes attack antigens directly and help control the immune response.

There is 1 question to complete.