CIRCULATORY SYSTEM

4 COMPONENTS OF BLOOD

• Platelets-Irregularly shaped bodies with sticky surfaces that forms clots to stop bleeding.
• Platelets only live 5-9 days and they are fragments of cells.
• White blood cells- Are twice as large as red blood cells.
• They can digest foreign organisms such as viruses and bacteria.
• White blood cells have nucleuses, can divide, and create antibodies.

HOW DOES SMOKING EFFECT THE HEART?

• There is an addictive substance in cigarettes called tobacco.
• Smoking effect all organs in the body, especially the lung&heart.
• Cigarettes damage the function of your heart and the structure of
• your blood vessels. Smoking is a major risk factor for heart disease,
• atherosclerosis, chest pain, heart attack, heart failure, and P.A.D.

4 COMPONENTS OF BLOOD ( CONTINUED)

• Plasma-Is the fluid blood.
• It is 90% water, 10% sugar fats, proteins, and salt or sugar.
• Plasma is 55% of the blood and maintains blood pressure.
• Red blood cells- Have 120 day life span and are most numerous
• The shape of a red blood cells allows it to bend and squeeze through tight places.

HOW TO REDUCE THE RISK OF HEART PROBLEMS

• One of the best ways to reduce your risk of heart
• problems is not to smoke or to stop smoking if you already do.
• Did you know that cigarette smoking causes 1 in every 5
• deaths in the U.S each year? For most people, smoking poses an
• even greater risk for the heart.

REFERENCES

• http://www.nhlbi.nih.gov/health/health-topics/topics/smo
• Our Notes and our brains.