Also known as an immunoglobulin (Ig), this is a large, Y-shaped protein produced by plasma cells that are used by the immune system to identify and neutralize pathogens such as bacteria and viruses.

An immunity that is the type of host defense that is always present in healthy individuals. It is always ready and prepared to block the entry

An immunity that is a type of host defense that always require activation and stimulation of the host tissue by pathogens or harmful materials

An immune response that is mediated by secreted antibodies produced in the cells of the B lymphocyte lineages (B cells).

An immune response that involves the activation of T lymphocytes (Cytotoxic T and Helper T) and the release of various cytokines in response to an antigen

Ensures that immune response are precisely targeted to microbial pathogens

A person who took a drug that destroys the thymus would most likely ___.

The activation of helper T cells is likely ________.

Which statement best describes the difference in responses of effector B cells (or plasma cells) and cytotoxic T cells?

You and a friend were in line for a movie when you noticed the woman in front of you sneezing and coughing. Both of you were equally exposed to the woman's virus, but over the next few days, only your friend acquired flu-like symptoms and was ill for almost a week before recovering. Which one of the following is a logical explanation for this?

Which of the following is a TCR co receptor?

Which of the following is NOT a possible scenario when a pathogen has entered into blood stream?

Antigen contact points in the Variable region are referred to as

CD4 markers are found in which cell

Cells that physically and chemically attack antigens

Cells that activate T and B cell responses

Subclasses of T cells that control immune response

Cells that retain memory of previous antigens and respond by cloning themselves

Immunity provided by cytotoxic T cells; Defends against abnormal cells and pathogens inside cells

Type of immunity provided by B cells; Defends against antigens and pathogens in body fluids

Class II MHC proteins are found only where?

What are the type of T Cell CD Markers?

CD8 T cells can produce which cells

Cell that perform immune surveillance

Cytotoxic T cells release perforins and cytokines and trigger

Produced simultaneously with cytotoxic T cells

Activation of CD4 T cells produces

Which is not a function of an interleukin

Largest and most diverse class of antibodies

Antibody stimulates cell to accelerate inflammation

Binding of this immunoglobulin plays a role in sensitization of the B cell

First antibody to be secreted after an antigen is encountered

Found primarily in glandular secretions and attacks pathogens before they gain access to internal tissues

What shape describes an antibody?

The immune response that defends against antigens dissolved in body fluids is called:

Which of the following plays the biggest role in humoral immunity?

Which of the following plays the biggest role in cell mediated immunity?

A CD4+ helper T cell is involved in which of the following immune responses?

Which type of antigen-presenting molecule is found only on macrophages, dendritic cells, and B cells?

MHC II molecules present

CD4 T cells are generally restricted by

A single antigen molecule may be composed of many individual

Microfold cells (or M cells) are found in the gut-associated lymphoid tissue (GALT) of the Peyer's patches in the small intestine, and in the mucosa-associated lymphoid tissue (MALT) of other parts of the gastrointestinal tract

Immunoagglutination tests goal :

How do cytotoxic T cells destroy infected/cancerous cells?

T cells require passage through thymus to complete their maturation

The lymphatic cells reach the lymp nodes via

MHC II molecules present

Which type of antigen-presenting molecule is found on all nucleated cells?