The Body’s Defenses - Antibodies and the Lymphatic System.

Slides:



Advertisements
Similar presentations
10b. Know the role of antibodies in the body’s response to infection.
Advertisements

The Immune System In this lesson, you will Learn About…
Biology 224 Human Anatomy and Physiology II Week 5; Lecture 1; Monday Dr. Stuart S. Sumida Immune and other Defense Systems.
Lymphatic System and Immunity Human Anatomy and Physiology II Oklahoma City Community College Dennis Anderson.
The 3rd line of defense (Adaptive or acquired immunity)
Anatomy Bowl Prep The Lymphatic and Immune System by Zachary Hale Know and understand these terms.
THE LYMPHATIC SYSTEM Chapter 15. Introduction Transports lymph through lymphatics Lymphatics: lymph capillaries and vessels Controls body fluid Destroys.
The Lymphatic System Aims: Must be able to outline the main structure that make up the Lymphatic system. Should be able to outline the roles of the lymphatic.
The Lymphatic System.  The lymphatic system consists of : 1. Lymphatic Vessels that carry lymph (clear watery liquid formed from tissue fluid) 2. Lymph.
KEY CONCEPT Blood is a complex tissue that transports materials.
Chapter 24 The Immune System
The Lymphatic System Lymphatic system functions
Lymphatic System B Explain the role of the lymphatic system in protecting the human body. Include: lymph vessels, lymph nodes, and lymph.
Part of our Immune system
The Lymphatic System and Immunity
The Lymphatic System. Capillary Bed As the arterial blood moves in to the capillary bed it is at a high pressure. Blood plasma, minus the blood cells.
3rd Line – Immune Response B – Body’s response to viruses/bacteria.
© 2010 Delmar, Cengage Learning 1 PowerPoint Presentation to Accompany.
Ch 35 The Immune System (parrot bk)
{ The Lymphatic System.  The lymphatic system consists of:  lymphatic vessels which drain excess fluid from the tissues and return it to the cardiovascular.
Lymphatic System Chapter 22. Introduction Components –Lymph is the fluid –Vessels – lymphatics –Structures & organs Functions –Return tissue fluid to.
Lymphatic System Questions 1. Transports excess fluid away from tissues and return it to the bloodstream. Also help defend the body against infections.
Characteristics of the Specific Immune Response It recognizes and targets “specific” pathogens or foreign substances. It has a “memory,” the capacity to.
LYMPHOCYTES & ITS FUNCTIONS
Third Line of Defence Aims: Must be able to state the substances involved in the third line of immunity. Should be able to describe the production and.
Lymphatic system A series of highways training centers & checkpoints for our immune cells.
The lymphatic system Clean and Kill. Ducts and Drains The lymphatic system is an extensive drainage system that returns water and proteins from various.
© 2012 Pearson Education, Inc. Lecture by Edward J. Zalisko PowerPoint Lectures for Campbell Biology: Concepts & Connections, Seventh Edition Reece, Taylor,
THE IMMUNE SYSTEM.
Chapter 38 The Human Defence System. A pathogen is an organism that causes disease. The general defence system: non specific acts against all pathogens.
1. 2 Chapter 15 The Lymphatic System 3 Introduction Transports lymph through lymphatics Lymphatics: lymph capillaries and vessels Controls body fluid.
Immunology The study of the organs, tissues and cells that create the body’s fight against disease. Immunity – ability to stop a pathogen from establishing.
PREPARED BY : EN. MUHD FAZLI DOLLAH BIOLOGY FORM 5.
Lymphatic System Anatomy and Physiology Lymphatic System Network of vessels Transports excess fluid from around the cells to the bloodstream Lymph capillaries.
Sc.912.L  What are lymph nodes?  Why do my lymph nodes sometimes feel swollen and tender when I am sick?  Is there more to the lymphatic system.
Immune System. Molecules and Cells  Molecules:  Antibodies (humoral immunity)  Complement proteins  Cells;  Phagocytes  Lymphocytes.
Section 6- Immune System
The Immune System Dr. Timmel. What is disease? Any change, other than an injury, that disrupts the normal functions of the body. Any change, other than.
Lymphatic System. Functions of the Lymphatic System 1.Return interstitial fluid to bloodstream 2.Transport lipids and lipid-soluble vitamins in the bloodstream.
BELL WORK How often do you get sick? When you do get sick is it bad? Explain your answers.
The Immune System Dr. Timmel. What is the function of the immune system? To fight infection through the production of cells that inactivate foreign substances.
Lymphatic System and Non-Specific Defense  The Lymphatic System Anatomy of the Lymphatic System Lymphatic Vessels and Flow Lymph Nodes Other Lymphoid.
The lymphatic system collects fluid that leaks out of the capillaries.
LYMPHATIC SYSTEM WITH A BRIEF INTRODUCTION TO THE IMMUNE SYSTEM.
Lymphatic System Lymphatic system: network of lymphatic vessels and organs Returns tissue fluid to the circulatory system Fights infections.
The Lymphatic System At the end of this unit you will be able to:
Objectives – What you will need to know from this section The Immune System  Outline the Defence System including skin/mucous membranes of breathing,
Exam question: Self mark it (a)(i)A disease-causing organism / bacterium;1 (b)(i) Attracted by chemicals/antigens Formation of vesicle / phagosome; lysosome.
The Lymphatic System a subdivision of the cardiovascular system.
AMA Anatomy & Physiology/Medical Terminology/Pathology 11 Blood & Lymphatic System.
Lymphatic System Chapter 14.
Protection against Disease Antibody Structure and Function.
The Immune System Learning objective Describe the role of the T cells (T lymphocytes) in cell-mediated immunity Describe the role of B cells (B lymphocytes)
Aim: How does our body defend us from pathogens?.
WARM UP 1.Draw and label the structure of a nephron. 2.Briefly describe what happens at each structure you labeled.
Immune System Structures, Components and Functions By Tim Savelle Agriculture Teacher Morgan County High School Veterinary Science The Army Within.
Unit 4 Option C: Human health & fitness 4C.1 Body systems; lymphatic system By Mr Wilson.
The Immune System!. What is Immunity? Immunity –The ability of the body to fight infection and/or foreign invaders by producing antibodies or killing.
Part 1. Learning Intentions Define the immune system Identify different components of the immune system Identify components of the lymphatic system.
LYMPHATIC SYSTEM HLTAP301A.
CHAPTER 24 The Immune System
UNIT 5- Lymphatic System
The Lymphatic System Consists of two semi-independent parts
The Lymphatic System.
The Lymphatic System and Immunity
The Lymphatic System pp
Presentation transcript:

The Body’s Defenses - Antibodies and the Lymphatic System

Learning Outcomes C6 describe the components of blood explain the roles of antigens and antibodies C7 describe the inter-relationships of the structures of the lymphatic system describe the functions of the lymphatic system q identify and give functions of lymph capillaries, veins, and nodes

Antibodies and Antigens Antigens are foreign substances that are recognized by the immune system They are usually proteins or polysaccharides (such as those found on cell membranes or the outer coat of a virus)

Antibodies are proteins produced by lymphocytes, to react with a specific antigen

Antibody Structure Contains 4 polypeptide chains - 2 heavy and 2 light chains Has specific sites that recognizes and binds to its particular antigen (variable region) Antibody structure

Antibody production B-lymphocyte recognizes a foreign antigen B cell is activated to divide rapidly B cells in plasma produce and release antibodies

Antibody Function Bind to antigens of invading cells causing them to clump together Phagocytic w.b.c’s (macrophages) then destroy them Memory B-cells remain in the bloodstream providing lasting immunity – these will reproduce quickly next time that specific antigen is encountered

Antibody video

The Lymphatic System A system closely associated with the circulatory system Consists of lymph vessels (veins and capillaries), lymph nodes, and organs including the spleen and thymus gland A one-way system, from tissues to blood Empties into the bloodstream at lymphatic ducts

Fig. 14.1

Lymph Vessels Lymph veins – similar in structures to circulatory veins; carry fluid from capillaries to ducts Lymph capillaries – found in all tissues, along with blood capillaries

Lymph Nodes Located along lymph vessels Contain large numbers of lymphocytes Function in fighting infection and antibody production

Functions of the lymphatic system: ①Immunity / fighting infection ②Absorption of glycerol and fatty acids in the lacteals ③Return of excess tissue fluid to the blood (capillary exchange)