by: Your Name Here

Introduction

Blood clotting Allergic Reaction

Hormone release Immune response

Blood Clotting

Initiated by Extrinsic mechanism

Substances from damaged tissues are mixed with the blood,

Intrinsic mechanismBlood itself is traumatized

Affected by more than 30 blood substances. Prothrombin – essential clotting mechanism.Platelets - initiates blood clottingVitamin K – needed to produce prothrombin.

Blood Clot

Requirements:thrombin

calcium ions (Ca2+)

clotting factors

Components: Platelet plugs enmeshed in a network of insoluble fibrin molecules

Clot Formation

Blood Clotting Mechanism

Immune Response

AntigenAntibodyLymphocytesPhagocytic CellsNatural Killer CellsCytokines

T-Cell Response

B – Cell Response

Lymphocytic Response

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.

Allergic Reaction

Allergic Reaction

Hormone Release

Body messengers.

steroids peptides amines

EndocrineVasopressin Growth Hormone Calcitonin Insulin Adrenaline Noradrenaline

ExocrineSweat Salivadigestive juices

Hormone Release

Neural Regulation

Humoral Regulation

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.

References

Allergic reaction. Retrieved September 18, 2008 from EMedicine Health Website: http://www.emedicinehealth.com/allergic_reaction/article_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/humoralregulation.htm

Neural regulation of hormone release. Retrieved September 18, 2008 from http://courses.washington.edu/conj/bess/neuralreg/neuralreg.htmlhttp://courses.washington.edu/conj/bess/neuralreg/neuralreg.html

Your endocrine system. Retrieved September 18, 2008 from http://www.hormone.org/endocrine_system.cfm