Chapter 22: Oral and Gastrointestinal Diseases Question Type: Multiple Choice 1) Feces are composed about 50% by weight and volume of bacteria. Most of these are species of ________. a) Salmonella b) Escherichia c) Bacteroides d) Streptococcus Answer: c Difficulty: Medium Learning Objective 1: LO 22.1 Review the anatomy of the digestive tract as it pertains to microbial defenses. Section Reference 1: Section 22.1 Components of the Digestive system 2) Streptococcus form ________ ‚ polysaccharides
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Exam 2 Study Guide w/ Chapters 15‚ 16‚ 17 1) Innate Immunity (p.446): A defenses against pathogens that is present at birth. Two major lines of defense; 1. Physical : Skin (epidermis + dermis) and mucous membranes 2. Internal: Cell and chemicals that inactivate or kill invaders Adaptive immunity (p.446): The body’s ability to recognize and defend itself against distinct invaders and their products. 2) Five attributes of adaptive immunity (p.471) 1. Specificity: When the immune response acts
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Management and craft employees alike set out to accomplish a task never before achieved by a postal facility with more than 20 employees. Many managers in the Southwest Area thought it suicide to invite the Occupational Safety and Health Administration (OSHA) in for an inspection and try to achieve the highest recommendation obtainable‚ the coveted "STAR" award. The plants 491 employees‚ supervisors and managers using transformational leadership‚ prepared for and accomplished this achievement in only
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death to yourself or others could vary likely happen under the wrong circumstances. The equipment you are operating is subject to failure‚ and it is just a matter of time until it does. It is the operators responsible to check for these failures. OSHA requires that all forklifts be examined at least daily before being placed in service. Forklifts used on a round-the-clock basis must be examined after each shift. [29 CFR 1910.178(q)(7)]. The operator should conduct a pre-start visual check with
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recognize pathogens: * Has unique receptor proteins all over the surface of its cell membrane * These receptor proteins recognize and bind to antigens that match their three-dimensional shape * All of the receptors on an individual lymphocyte are the same shape or type and thus bind to the same type of antigens. * Body makes a lot of different lymphocytes‚ with different receptors. * Antigen: any substance that the immune system can recognize and react with. -pathogens or -parts
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OCCUPATIONAL SAFETY & HEALTH LEGISLATION OSHA Philosophies & Objectives • OSHA 1994 (Act 514) • Employers’ Responsibilities (Part IV‚ Sec 15-19) • Employees’ Responsibilities (Part VI‚ Sec 24-27) • Factory & Machinery Act 1967 (Act 139) • S&H Organizations in Malaysia • PART 1 O S H L E G I S L A T I O N WHAT IS OCCUPATIONAL SAFETY AND HEALTH ACT? The Occupational Safety and Health Act is an Act which provides the legislative framework to secure the safety‚ health and welfare among
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white blood cells. Phagocytes are found in the blood and ingest pathogens. One is called Macrophage. They change their cellular shape to surround an invader and take it through the process of phagocytosis. It recognizes if the cell is ‘self’ or ‘not self’‚ by the protein make-up of the cell. The ‘not self’ cells are engulfed and then the enzymes within the phagocytes called lysosomes then digest the pathogens. Phagocytes can ingest pathogens in the blood but also within body tissue as they can pass through
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booklet of providing guidelines. According to searchcompliance.techtarget.com‚ the Occupational Safety and Health Administration is a federal agency of the United States that regulates workplace safety and health and has been in affect since 1970. OSHA is a very detailed and helpful booklet as it covers from the Worksite Analysis to Safety and Health Training with a recordkeeping and program evaluation to keep instances to a minimal at the workplace. Management
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1. Describe the function of the immune system. Function: protect body from pathogens + foreign objects‚ destroy infected or malignant cells‚ and remove cellular debris. System includes: thymus‚ spleen‚ lymph nodes and tissues‚ stem cells‚ white blood cells‚ antibodies. 2. Compare innate and acquired immunity‚ and how they differ in terms of how quickly they attack a pathogen‚ and how they recognize a pathogen. Innate immunity- immediate defense upon infection and foundation for adaptive
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the white blood cells including T cells and B cells bind to the antigen. Antigens are chemicals released from invading pathogens or toxins. The binding of antigen to the antigen receptors of T cells or B cells help activate and secrete antibodies to bind to the antigen receptor protein on the membrane of a pathogen. The binding of antibodies to a specific receptor of pathogen activates the resistance. When a B cell recognizes an antigen‚ the B cell has antigen receptors with 2 heavy chains and
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