Review for the Third Midterm Exam-micrbiology

Review for the Third Midterm Exam-micrbiology - Review for...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Review for the Third Midterm Exam 1. Know your terms 2. What are the components of the immune system? a. What are the two arms of immunity? How do they differ? Innate - always on, first barriers, skin mucous membranes react in 0-12 hours, normal flora, enzymes, and iron proteins Humoral - clump around the bacteria or virus Cellular - cytotoxic cells and helper t-cells Adaptive - B- cells, T-cells, waits a few days before reacting b. What are the cellular components of the immune system? What are their jobs? Erythrocytes - carry oxygen in the blood Platelets - fragments of large cells Leukocytes - white blood cells divided into granulocytes, monocyte, lymphocyte Granulocyte Eosinophils - allergic reaction, defense against parasitic worms; granulocyte Basophil - inflammation reactions release of histone; granulocyte Neutrophil - also called PMN’s phagocytosis; granulocyte Polymorphonuclear - neutrophilic leukocyte Monocyte - circulates; differentiates in tissue to macrophage and dendiritic cells; phagocytize Macrophage - phagocytize and digest engulfed materials Dendritic cell - gather antigen and present to lymphocytes Lymphocyte - large nucleus, little cytoplasm, participate in adaptive immune response 3. What are the signs of an immune response (e.g. what are the signs of inflammation)? Swelling - tumor Redness - rubor Heat - calor Pain - dolor 4. What is the innate immune response? Defenses that involve anatomical barriers a. What are the components of this response? Lysosome - breaks peptidogylcans- present is sweat tears and saliva Defensisns - create holes in bacterial membranes b. What characterizes an innate response? Physical barriers - skin mucosal barriers, normal flora Enzymes and other proteins-
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lysozyme - breaks peptidoglycan, present in tears and saliva Peroxidase - produces reactive oxygen species Defensins - creates pores in bacterial membranes Systemic Response - fever inflammation Phagocytosis - chemotaxis(recruited to site of infection), recognition, engulfment, destruction, exocytosis of bacterial debris Complement- protein cascade, results in inflammation which leads to cell lysis, forms sports and opsonization c. What are the systemic responses associated with innate immunity? Fever - accelerates body defenses, elevates temperature above optimal growth of pathogens Inflammation - dialation of blood vessels, recruitment and migration of leukocytes into trauma area d. Are these responses always good for us? If not, when are they detrimental? If there is inflammation and it makes the blood vessels more “leaky” than they are
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/08/2008 for the course BIOLOGY 1333 taught by Professor Shipley during the Spring '08 term at Midwestern State University.

Page1 / 6

Review for the Third Midterm Exam-micrbiology - Review for...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online