19. CARDIOVASCULAR SYSTEM - THE BLOOD INTRODUCTION

19. CARDIOVASCULAR SYSTEM - THE BLOOD

INTRODUCTION

BLOOD AND HOMEOSTASIS

1. BLOOD CONTRIBUTES TO HOMEOSTASIS BY

     TRANSPORTING OXYGEN 

                                    CARBON DIOXIDE
       
                                     NUTRIENTS

                                     HORMONES

                                            TO AND FROM OUR BODY CELLS


2.  HELPS REGULATE BODY pH  
                                                       AND TEMPERATURE

3.   PROVIDE PROTECTION AGAINST DISEASE THROUGH

                                     - PHAGOCYTOSIS
                                             AND
                                     - PRODUCTION OF ANTIBODIES



CARDIOVASCULAR SYSTEM

CARDIO = HEART
VASCULAR = BLOOD VESSELS

CONSISTS OF 3 INTERRELATED COMPONENETS

      - HEART

      - BLOOD

      - BLOOD VESSELS


HEMATOLOGY

HEMA- / HEMATO-  = BLOOD

- LOGY = STUDY OF

THE BRANCH OF SCIENCE CONCERNED WITH THE STUDY OF 
      - BLOOD

      - BLOOD - FORMING TISSUES

      - THE DISORDERS ASSOCIATED WITH THEM