A natural body defense that plays an active role in preventing infection O Yawning O Body hair

Q: Which type of T-cell activates a dendritic cell to greater killing power in the presence of an…

A: A T cell is a type of lymphocyte, which develops in the thymus gland (hence the name) and plays a…

Q: What body structure is the site of T cell maturation?

A: T cells are also known as T lymphocytes are a type of white blood cells which are essential for…

Q: Release of T cell cytokines is is controlled via sympathetic activity. Which of the following…

A: Sympathetic innervation or sympathetic nervous system is a division of nervous system that…

Q: When is the thymus most active? O during middle age O during childhood during old age during early…

A: Immune system protects the body from foreign molecules. These foreign molecules are pathogen or…

Q: DIipiete the following t Types of lymphocytes involved: Site of lymphocyte maturation: Mode of…

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

Q: The mucus lining of organ systems open to the external environment is an example of ________…

A: Defence system  The organism body defence system protect the organism from foreign invaders.

Q: Match each component of the immune system that we studied to its role in defending you against…

A: There are mainly two type of immunity; innate immunity and adaptive immunity. Innate immunity also…

Q: Why would it benefit the body to have an adaptive immune system in addition to an innate immune…

A: The first line of defense system is called innate immune system and adaptive immune system is…

Q: . ● What signaling molecules do macrophages secrete? Interferon Interleukin-1 Histamine Only a and b

A: macrophages are a type of white blood cell that surrounds and kills microorganisms, removes dead…

Q: Which of the following is TRUE about interferons? Each interferon is specific for one type of virus…

A: The immune system of our body plays a critical role in fighting the pathogenic organism entering the…

Q: Which inflammatory cytokines are found more frequently in microglia and macrophages in thr spinal…

A: IFN-alpha and IFN-beta

Q: Which are most important in helping the adaptive immune system fight cancer MHC class 2 proteins…

A: Adaptive immunity is a type of immune response which occurs in the body after the cells have been…

Q: A major outcome in response to the is the production of O complement cascade activation; a MAC in…

A: It is a complex biological system endowed with the capacity to recognize and tolerate whatever is…

Q: What would happen if you had no NK cells? What would happen if you had no macrophages?

A: NK cells  are Innate Lymphoid cells from Bone marrow derived lymphocytes. that display cytotoxic…

Q: All of the following are actions of the complement system except: O a. decreasing fever O b.…

A: Immunity is a resistance of our body against the invading pathogenic agent. It is also considered as…

Q: The receptors (TLRS and NLRS) phagocytes use to bind to foreign antigens are collectively called

A: Pattern recognition receptor: - The first source of defense against any pathogen is "Innate immune"…

Q: T-helper cells release signal molecules called immune response cytokines, nonspecific (or innate)…

A: Helper T cells or Th cells coordinate immune responses by communicating with other cells.  In…

Q: Opsonization" refers to one unique naïve T Lymphocyte only recognizing one specific epitope on one…

A: # Here I have solved only first question. please send one by one in the portal.  Option 4 is correct…

Q: Reed Sternberg cells are derived from which type of normal cell?   T-cells   B-lymphocytes…

A: Immune system is system which helps our body to fight against the foreign substances which will…

Q: In mammals adaptive immune system T cells receptor are extra ordinary numerous diverse what function…

A: Introduction T cells are mainly of two types T helper cells and T cytotoxic cells. All the T cells…

Q: what will happen to the human body system when a microorganism invading the body lacks the inherent…

A: Introduction The immune system is defined as a group of biological structures and cellular…

Q: Examples of inflammatory cytokines andtheir roles

A: For all living organisms, there is a challenge for surviving by defeating the entire pathogenic…

Q: What is the function of mucus in preventing infections? Group of answer choices To stimulate the…

A: Mucus is a aqueous layer that is secreted by the mucous membranes.

Q: Which of the following immune cells recognize antigens and activate additional immune cells? OPlasma…

A: The ability or potential of an organism or individual to withstand a particular infection or toxin…

Q: Macrophages typically present antigens to T cells. However, macrophages that reside in the…

A: Macrophages are a type of white blood cell that engulf and digest cellular debris, foreign…

Q: Physical barriers – Skin, Mucous membrane Lymphocytes – Bcells and T cells Components Killer t cells…

A: There are significant differences between innate and the acquired immunity. There are a variety of…

Q: Which type of cell is ultimately the one which will remove foreign and unnecessary material from the…

A: A complex network of cells, tissues, and organs that work collectively to protect the body and fight…

Q: Which of the following proteins downregulates the classical complement cascade by breaking up the C3…

A: The classical complement (CMP) pathway is considered as the method, which helps in the activation of…

Q: Which of the following best describes the function of IgA antibodies? O Allergy response O Defense…

A: IgA antibodies play a crucial role in the defense against pathogens at mucosal surfaces, such as…

Q: Which is not a second-line, non-specific defense? inflammation IgA on mucous membranes…

A: Immunology is a branch of biology which deals with the study of immune systems and their responses.…

Q: Which of the following is not a function of eosinophils? Phagocytosis Antigen presentation…

A: Eosinophils which are also known as the acidophils , are the white blood cells and are one of the…

Q: Please explain why

A: Option a  Mesenteric lymph nodes

Q: Paroxysmal nocturnal hemoglobinuria is a disease characterized by lysis of red blood cells, which…

A: Paroxysmal nocturnal hemoglobinuria. It is a rare disease that is caused by a mutation in bone…

Q: Write TRUE is the statement is True, otherwise write FALSE and explain why the statement is False.…

A: The complement system involves a set of genes that distinguish foreign cells from body cells.…

Q: 24. Type 2 interferon is Interferon alpha Interferon beta Interferon gamma Only interferon alpha and…

A: Interferons are a kind of signaling proteins that are released by host cells in the response to the…

Q: Given these effects I. Increased oxygen consumption II. Increased heart rate III. Increased body…

A: According to Bartleby guidelines, I am supposed to answer only first part. Please post the second…

Q: After defeating an invader, T cells remain embedded in the tissue where the infection occurred,…

A: * when a pathogen enters into the body , our body immune system will produce antibodies inorder to…

Q: Which of the following is not an outcome of complement activati O extravasation O inflammation O…

A: Complement system is a series of reactions which occurs as immune response to increase the…

Q: Interferon-gamma (IFN-gamma)-producing natural killer (NK) cells are part of: IL2 cells ILC3 ells…

A: Introduction Natural Killer (NK) Cells are lymphocytes that are related to T and B cells and are…

Q: phagocytic cells recognize pathogen-associated molecular patterns using their:  Group of answer…

A: Pattern recognition receptors(PRR) These are class of transmembrane toll like receptors(TLRs) found…

Q: Fill in the blank: RNA viruses require their own supply of certain enzymes because host cells…

A: Viruses are nucleoprotein entities that can multiply by utilizing the synthesis machinery of another…