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The Complement System: A Decisive System in Body Defence.

   The Complement System: A Decisive System in Body Defence. This article will discuss the complement system's role in the body's defense mechanisms, including its site of origin and mechanism of action. Keywords: cellular immunity| humoral| Mannose-binding lectin (MBL)| Histamine|Body defense system|WBC| Classical Pathway| Lectin Pathway| Properdin or Alternative   P athway Introduction The complement system is crucial in the body's defense against invading pathogens and tumor cells. The complement system is a system of plasma enzymes. The liver synthesizes enzymes of the complement system. It comprises over 30 enzymes circulating in the blood and is responsible for cell killing by humoral and cellular immunity. These enzymes are inactive and become active when stimulated by an antigen-antibody complex or other pathways. When in active form, they work in a sequence of cascade reactions to remove pathogens, kill pathogens, initiate and promote inflammation, an...
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Enzymes | Definition |Types |Functions | Synthesis| Biology| Physiology|

© 2021 Google W hat are enzymes and their  function   Keywords : Enzymes| Apoenzyme | Holoenzyme| Globular proteins|  Cofactor | Prosthetic| Catalytic| isoenzyme |           ALL ABOUT ENZYMES Table of contents: 1. Introduction 2. Structure 3. Mode of action 4. Synthesis 5. Classification 6. Types   Ø Apoenzyme Ø Holoenzyme Ø Enzymes Ø Prosthetic group    7. Classification 8. Cofactors                                 Introduction The word enzyme comes from a Greek word meaning 'in yeast' or 'leavened.' The word enzyme was used in 1877 by W...
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Glands| Ductless |Human physiology

                   Glands| Ductless| |Autocrine|       Keywords:|Receptor|Signal| Intracrine|Autocrine|Paracrine|Juxtacrine|Endocrine| What is a gland ?  A gland is a group of cells in the body. They synthesize and release substances that perform a specific function in the body. Enteroendocrine cells are spread throughout the intestinal tract and not clustered together. Therefore, the cells are not in groups. However, if taken together, they are one of the largest endocrine systems in the body. They are about 1% of the epithelial cells of GIT. They are specialized for secretion. Types of ductless glands in the human body: 1. Intracrine 2. Autocrine 3 Paracrine. 4. Juxtacrine 5. Endocrine Study of a characteristic unique feature of different types of ductless glands: Intracrine:  is a hormone that acts inside a cell, i.e., the cell stimulates itself by producing  a factor that wo...
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57 Essential Questions & Answers| human physiology|

                    57 essential questions human physiology|answers| Part 2,Question & Answer                             Table of contents Sr.No. Q No from to Topic 1. 1-18 Blood film and blood cells 2. 19-28 PCV ,Absolute values,Anemia 3 . 29-42 White blood cells 4. 39-57 Osmotic fragility, Heam crystal   Q 1. What is characteristic of a good blood film?   Ø     A.  The film should occupy the middle two-third of the slide. Ø   The blood film should be tongue-shaped, forming a body and tail. Ø   The blood film should have no striations. Ø   The blood film should be of uniform thickness. Ø   In the blood fi...
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