Chapter 14: Resistance and the Immune System: Innate Immunity
... Blood Cells Form an Important Defense for Innate and Acquired Immunity • Serum is the fluid part of blood, containing: • minerals • salts • proteins, etc. • Plasma is serum that contains clotting agents • Leukocytes (white blood cells) are produced in the bone marrow • Neutrophils (polymorphonucle ...
... Blood Cells Form an Important Defense for Innate and Acquired Immunity • Serum is the fluid part of blood, containing: • minerals • salts • proteins, etc. • Plasma is serum that contains clotting agents • Leukocytes (white blood cells) are produced in the bone marrow • Neutrophils (polymorphonucle ...
Title - Iowa State University
... 6. The second line of defense makes use of many different cell types. Name two cell types involved in the innate defenses. Name two other non-cellular defenses in the innate immune system. ...
... 6. The second line of defense makes use of many different cell types. Name two cell types involved in the innate defenses. Name two other non-cellular defenses in the innate immune system. ...
Immune Response
... • Immunology- the study of host defense mechanisms • Immunity- ability of the host to protect itself against foreign organisms. Resistance to disease. • Antigen (Ag)- is a foreign substance that can elicit specific immune response (IR) when is immunogenic • Antibody (Ab)- protein produced by the bod ...
... • Immunology- the study of host defense mechanisms • Immunity- ability of the host to protect itself against foreign organisms. Resistance to disease. • Antigen (Ag)- is a foreign substance that can elicit specific immune response (IR) when is immunogenic • Antibody (Ab)- protein produced by the bod ...
Lines of Defense - Trinity Christian School
... and beginning clean-up of damaged and dead cells and/or pathogens. 2. As the inflammatory response continues.. Monocytes follow the neutrophils into the area 3. Within 8-12 hours the monocytes develop into ...
... and beginning clean-up of damaged and dead cells and/or pathogens. 2. As the inflammatory response continues.. Monocytes follow the neutrophils into the area 3. Within 8-12 hours the monocytes develop into ...
Unit 4 - Immunology and Public Health
... Epithelial cells (in cavity linings) produce (protective chemical) secretions ...
... Epithelial cells (in cavity linings) produce (protective chemical) secretions ...
![Riggs_Signal_Transduction-_PAMP_Presentation[1]](http://s1.studyres.com/store/data/008651685_1-7a9da834997c5984d78c99bc734baadf-300x300.png)
Riggs_Signal_Transduction-_PAMP_Presentation[1]
... There are many types of pattern recognition receptors in different locations in tissues that respond to invading organisms Recognition molecules are expressed by: ...
... There are many types of pattern recognition receptors in different locations in tissues that respond to invading organisms Recognition molecules are expressed by: ...
Cells of the Immune System Principles of Immunology 1/26/06
... Large WBCs Monocytes are circulating precursors Macrophages ...
... Large WBCs Monocytes are circulating precursors Macrophages ...
The Immune System and Disease
... may be caused by _____________ (bacteria, viruses, fungi) B. agents of disease ...
... may be caused by _____________ (bacteria, viruses, fungi) B. agents of disease ...
File
... cell’s membrane 3. The pores allow a “signal” molecule from the NK cell to enter the target cell and trigger a genetically controlled series of events 4. The target cell then switches on a “suicide” gene, and “suicide” proteins are released 5. “Suicide” proteins function as self-destructive (degrada ...
... cell’s membrane 3. The pores allow a “signal” molecule from the NK cell to enter the target cell and trigger a genetically controlled series of events 4. The target cell then switches on a “suicide” gene, and “suicide” proteins are released 5. “Suicide” proteins function as self-destructive (degrada ...
White blood cells - The Silver Sword
... GF stimulate proliferation and differentiation and also affect the function of mature cells on which they act ...
... GF stimulate proliferation and differentiation and also affect the function of mature cells on which they act ...
... iii) Monocytes (~6% of WBC): found in blood, recruited to site of injury within 4-6 hrs, Monocytes develop into the following three cell types: Macrophages: found in tissues near blood vessels. Tissue specific forms, e.g. Kupffer cells in the liver, microglial cells in the central nervous system Den ...
Innate Immunity - Heritage College of Osteopathic Medicine
... • Synthesis and secretion of cytokines/chemokines • Phagocytosis (binding and engulfment of particles) • Intralysosomal digestion and killing of ingested material. – Antigen presentation to lymphocytes ...
... • Synthesis and secretion of cytokines/chemokines • Phagocytosis (binding and engulfment of particles) • Intralysosomal digestion and killing of ingested material. – Antigen presentation to lymphocytes ...
Section Assignment 1.3 Part C: Defence Systems
... White blood cells that kill virus-infected cells and tumor cells by cell-to-cell combat Digested invaders and fragments of white blood cells Promotes production of antibodies without causing disease Disease-causing agent, such as viruses, bacteria, and fungi Unicellular organisms that are neither pl ...
... White blood cells that kill virus-infected cells and tumor cells by cell-to-cell combat Digested invaders and fragments of white blood cells Promotes production of antibodies without causing disease Disease-causing agent, such as viruses, bacteria, and fungi Unicellular organisms that are neither pl ...
Innate Immunity - Ohio University
... • Synthesis and secretion of cytokines/chemokines • Phagocytosis (binding and engulfment of particles) • Intralysosomal digestion and killing of ingested material. – Antigen presentation to lymphocytes ...
... • Synthesis and secretion of cytokines/chemokines • Phagocytosis (binding and engulfment of particles) • Intralysosomal digestion and killing of ingested material. – Antigen presentation to lymphocytes ...
Lymphatic Review Sheet
... -4 cardinal signs are: _________________________________________ 3. 3rd line of defense is specific/nonspecific and is called the ___________________________. -Special about the immune system is that it acts slower/faster. -Makes two types of lymphocytes: __________________ and ____________________ ...
... -4 cardinal signs are: _________________________________________ 3. 3rd line of defense is specific/nonspecific and is called the ___________________________. -Special about the immune system is that it acts slower/faster. -Makes two types of lymphocytes: __________________ and ____________________ ...
Title goes here
... Pattern recognition receptors must recognize structures vital to the pathogen! ...
... Pattern recognition receptors must recognize structures vital to the pathogen! ...
nonspecific defense
... Activate B plasma cells with receptor Cytotoxic T cells (recognize Class I MHC) ...
... Activate B plasma cells with receptor Cytotoxic T cells (recognize Class I MHC) ...
NON-SPECIFIC IMMUNE RESPONSE CHAPTER 16 Overview of the Defense
... Cell Communicaton • Surface receptors on cells: on membrane; when binds to specific compound, signals cell to respond • Cytokines: cell messengers; proteins made by cells to communicate with other cells • Adhesion molecules: on surface of cell that allows cell to adhere to other cell ...
... Cell Communicaton • Surface receptors on cells: on membrane; when binds to specific compound, signals cell to respond • Cytokines: cell messengers; proteins made by cells to communicate with other cells • Adhesion molecules: on surface of cell that allows cell to adhere to other cell ...
Phagocyte
Phagocytes are cells that protect the body by ingesting (phagocytosing) harmful foreign particles, bacteria, and dead or dying cells. Their name comes from the Greek phagein, ""to eat"" or ""devour"", and ""-cyte"", the suffix in biology denoting ""cell"", from the Greek kutos, ""hollow vessel"". They are essential for fighting infections and for subsequent immunity. Phagocytes are important throughout the animal kingdom and are highly developed within vertebrates. One litre of human blood contains about six billion phagocytes. They were first discovered in 1882 by Ilya Ilyich Mechnikov while he was studying starfish larvae. Mechnikov was awarded the 1908 Nobel Prize in Physiology or Medicine for his discovery. Phagocytes occur in many species; some amoebae behave like macrophage phagocytes, which suggests that phagocytes appeared early in the evolution of life.Phagocytes of humans and other animals are called ""professional"" or ""non-professional"" depending on how effective they are at phagocytosis. The professional phagocytes include many types of white blood cells (such as neutrophils, monocytes, macrophages, mast cells, and dendritic cells). The main difference between professional and non-professional phagocytes is that the professional phagocytes have molecules called receptors on their surfaces that can detect harmful objects, such as bacteria, that are not normally found in the body. Phagocytes are crucial in fighting infections, as well as in maintaining healthy tissues by removing dead and dying cells that have reached the end of their lifespan.During an infection, chemical signals attract phagocytes to places where the pathogen has invaded the body. These chemicals may come from bacteria or from other phagocytes already present. The phagocytes move by a method called chemotaxis. When phagocytes come into contact with bacteria, the receptors on the phagocyte's surface will bind to them. This binding will lead to the engulfing of the bacteria by the phagocyte. Some phagocytes kill the ingested pathogen with oxidants and nitric oxide. After phagocytosis, macrophages and dendritic cells can also participate in antigen presentation, a process in which a phagocyte moves parts of the ingested material back to its surface. This material is then displayed to other cells of the immune system. Some phagocytes then travel to the body's lymph nodes and display the material to white blood cells called lymphocytes. This process is important in building immunity, and many pathogens have evolved methods to evade attacks by phagocytes.