Question

Diapedesis is the characteristic features of
A)Monocytes
B)B-lymphocytes
C)T-lymphocytes
D)All of these

Answer 1

Hint: These are the largest forms of leukocytes. The leukocytes also mean white blood cells. They can be converted into macrophages and myeloid dendritic cells. It also plays an important role in the innate immune system of vertebrates. It also controls the process of adaptive immunity.

Complete answer:
Diapedesis is a migration of blood cells through the wall of the blood capillaries into the tissue spaces. It is an important part of the reaction of tissue to injury.
-It is a characteristic feature of monocytes. monocytes are white blood cells. They are the largest type of leukocytes (WBC). They provide immunity bodies as they are parasitic cells and engulf the foreign bodies.so basically provide protection against infection.
-The process of Diapedesis is generally used by monocytes in the presence of infection and any type of damage to the tissues during the development of macrophages.

Additional Information: B lymphocytes- produce Gamma globulins, a protein antibody. Its function is to recognize foreign substances and get attached to them. B- lymphocytes are programmed to make one specific antibody.
Whenever a B cell comes across the antigen, it produces many large cells called plasma cells. The plasma cells are specifically a factory for producing antibodies.
T-lymphocytes- their function is to remember the antigens and also recognize them and respond against them.T cells contributing to the immune difference in two major ways.
-Some are direct and regulate the immune responses when stimulated by the specific antigenic material presented by the macrophages These cells make lymphokines that signal other cells. Other T lymphocytes target the cells by direct contact and then kill the targeted cells.
So, the correct answer is, "Monocytes".

Note: -Diapedesis is an important part of the reaction of tissue to injury.
-Diapedesis is initiated by the chemotactic activation of leukocytes in response to cytokines and chemokines.