1. by: Your Name Here

2. Introduction Blood clottingAllergic Reaction Hormone releaseImmune response

3. Blood Clotting Initiated by Extrinsic mechanism Substances from damaged tissues are mixed with the blood, Intrinsic mechanism Blood itself is traumatized Affected by more than 30 blood substances. Prothrombin – essential clotting mechanism. Platelets - initiates blood clotting Vitamin K – needed to produce prothrombin.

4. Blood Clot Requirements: thrombin calcium ions (Ca2+) clotting factors Components: Platelet plugs enmeshed in a network of insoluble fibrin molecules

5. Clot Formation

6. Blood Clotting Mechanism

7. Immune Response Antigen Antibody Lymphocytes Phagocytic Cells Natural Killer Cells Cytokines

8. T-Cell Response

9. B – Cell Response

10. Lymphocytic Response

11. Allergic Reaction An over reaction of the body’s defense. Response to invader. Triggered by Allergens (antigens). Can be caused by anything. Can be life threatening.

12. Allergic Reaction

14. Hormone Release Body messengers. steroids peptides amines Endocrine Vasopressin Growth Hormone Calcitonin Insulin Adrenaline Noradrenaline Exocrine Sweat Saliva digestive juices

15. Hormone Release

16. Neural Regulation

17. Humoral Regulation

18. Summary Blood clotting is a protective mechanism to avoid blood loss, Immune response is body’s defense. Allergic reaction is an exaggerated response to antigen. Hormone release is to sustain system functions. Four functions are with special association.

19. References Allergic reaction. Retrieved September 18, 2008 from EMedicine Health Website: http://www.emedicinehealth.com/allergic_reaction/articl e_em.htm Blood and body defenses I. Retrieved September 18, 2008 from http://www.people.eku.edu/ritchisong/301notes4.htm Humoral regulation of hormone release. Retrieved September 18, 2008 from http://courses.washington.edu/conj/bess/humoral/humo ralregulation.htm Neural regulation of hormone release. Retrieved September 18, 2008 from http://courses.washington.edu/conj/bess/neuralreg/neur alreg.htmlhttp://courses.washington.edu/conj/bess/neur alreg/neuralreg.html Your endocrine system. Retrieved September 18, 2008 from http://www.hormone.org/endocrine_system.cfm