1. The Human Heart
Septum

2. The Human Heart Pulmonary Artery to left lung
Pulmonary Artery to right lung
Septum

3. Components of Blood Red Blood Cells (RBC): Plasma:
primary purpose is to carry oxygen to all parts of the body
can be dark red (oxygen poor) or bright red (oxygen rich) Blood is NEVER blue
Produced in bone marrow
RBC carry hemoglobin, an iron-containing protein that contains oxygen
disc shaped with a pinched center; allows them to bend and squeeze through capillaries
Plasma:
the fluid portion of blood
makes up 55% of blood and is a yellow colored liquid
about 95% of it is made of water.

4. Components of Blood
Red Blood Cells (RBC):

5. Components of Blood
Plasma:

6. Components of Blood White Blood Cells (WBC): Platelets:
fight infection
larger in size but they are fewer in numbers
the body increases production of white blood cells when they are needed (when you are sick or fighting infection)
Platelets:
cell fragments that help the blood to clot at a wound site
shaped somewhat like plates
Also produced in bone marrow
Hemophiliacs lack a sufficient number of platelets; therefore they are considered free bleeders

7. Components of Blood
White Blood Cells:

8. Components of Blood
Platelets: