What happens when a helper T cell is activated?

Q: What is Lymphocyte Receptors?

A: Introduction: The immune system is involved in protecting the human body from any invading pathogen.…

Q: What are immunity and different types of immunity?

A: Immunology is the branch of science which deals with the study of the immune system, immune response…

Q: How does humoral immunity differ from cellular immunity?

A: Adaptive immunity is a kind of immunity that occurs after facing exposure to an antigen either from…

Q: What kind of cell releases cytokines?

A: By some specific cells of the immune system, a large group of proteins, peptides, or glycoprotein…

Q: How do T cells reach the CNS of healthy individuals?

A: Question -  How do T cells reach the CNS of healthy individuals?

Q: In the absence of thymus, where does the maturation of t cells occur ?

A: B lymphocytes and T lymphocytes are two important immune cells that take part in acquired immunity…

Q: What are interferons?

A: A bodily response towards the presence of substances which is not been recognized as the body’s…

Q: What is called Acquired immunity?

A: The immune system in the body act as a defense system. It fights against disease and infection. The…

Q: Define suppressor T cell

A: Suppressor T cells are the type of immune cells that blocks the action of other lymphocytes. They…

Q: decrease in the number of cytotoxic T cells would affect which type of immunity?

A: Immunity is the ability of multicellular organisms to outlast foreign microbes that are harmful to…

Q: What is the role of Role of NK Cells?

A: A lymphocyte is a kind of white blood cell which is found in immune system of…

Q: Describe the primary functions of helper T cells and cytotoxic T cells.

A: The immune system is responsible for clearing any infectious particle from the body by the…

Q: How are T cells aff ected by aging?

A: A defense system in the body of an individual which constitutes a complex network of cells and…

Q: Which type of T-cells attack and destroy infected cells

A: Lymphocytes or white blood cell (WBC) includes macrophages, dendritic cells, T cells, B cells, and…

Q: Where do B cells acquire immunocompetence? Where do T cells do so?

A: B -cells acquire immunocompetence in Bone Marrow and T-cells acquire immunocompetence in Thymus.

Q: What is the difference between innate and adaptive immune responses

A: The human body has immune system to fight the foreign antigen which enters in the the body. If will…

Q: What are antigens of a disease-causing agent that stimulate an immune response to that particular…

A: The molecules or substances which trigger the immune response upon entry into a host are known as…

Q: What is meant by 'B lymphocytes are sensitive to clonal deletion'?

A: Immunity

Q: What is an Antigen-presenting cell (APC)?

A: There are different kinds of cells for adaptive and humoral immune responses. These are studied…

Q: How does T cell activation differ from B cellactivation?

A: T cells and B cells (or T lymphocytes and B lymphocytes) are white blood cells involved in defending…

Q: How are B cells activated?

A: Blood is a body fluid in humans and other animals. It delivers necessary substances such as oxygen…

Q: What is the role of the thymus in the immune system?

A: Immune system include the organs and processes of the body that provide resistance to infection and…

Q: How helper T cells react against bacteria?

A: Immunity is a state of being well or immune. It can also be explained as resistance shown by the…

Q: What are the first and second signals in activation of a T cell?

A: The T cell which is also referred to as the T lymphocyte is one of the most crucial cells of the…

Q: Define effector T cell

A: In physiology, the term effector T cell which is also known as the effector T lymphocyte is used to…

Q: Why regulatory T cells important?

A: T cells are the immune cell especially play vital role in adaptive immunity . Generally , T helper…

Q: Where are B-cells and T-cells formed? How do they differ from each other?

A: B cells and T cells are lymphocytes that are derived from specific types of stem cells called…

Q: How do cytotoxic T cells destroy cells bearing foreign antigens?

A: Immunology is a section of biology that includes the study of molecules, cells, and organs that…

Q: What are some functions of cytokines?

A: Cytokines are low molecular weight soluble proteins, non-immunoglobulin in nature, secreted by a…

Q: What is the difference between T cells and B cells?

A: Immune cells are the defense cells that protect the body from infective agents. The cells of the…

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.