Functions of the blood Pulmonary Circulation Systemic Circulation

1. Transport oxygen & carbon dioxide. Blood Transport deoxygenated blood from transport oxygenated blood from the
2. Transport nutrients & wastes. the heart to the lung to be oxygenated, heart to all parts of the body and
3. Protect the body from diseases. and back to the heart. returned to the heart as deoxygenated

Plasma Double
• Mainly water * glucose Circulation A pump which is responsible
• Urea * amino acids for pushing blood around
• Carbon dioxide * vitamins your body
• Minerals * antibodies
Right side carry
White blood cells
(Fight Pathogens) Pulse / deoxygenated blood.
Phagocytes Left side carry oxygenated
Beates per
(Engulf Pathogens) blood (Separated by septum)
minutes (60-
Lymphocytes
Make antibodies
Blood 80 bpm)
Upper chambers called
Red Blood Cells Cells Circulatory atrium. Lower chambers
Transport Oxygen called ventricles
Adaptations
Platelets System Heart
Blood Clotting Right side blood vessels:
1.
2.
No nucleus.
Biconcave 1. Thick walls to withstand Mapping
3. Haemoglobin high blood pressure. Valves in 1. Superior Vena Cava.
4. Elastic walls 2. Elastic walls to force the Arteries the heart 2. Inferior Vena Cava
blood. prevent 3. Pulmonary Artery
3. Carry blood away from (All carry deoxygenated blood)
the back
the heart.
4. High Blood Pressure. Blood flow of the
blood. Left side blood vessels:
1. Carry blood to the heart. Vessels
2. Low blood pressure. Veins 1. Aorta.
Coronary Artery
3. Has valves. Capillaries 2. Pulmonary Vein
4. Between muscles to 1. Gives blood to (All carry oxygenated blood)
squeeze blood. 1. One cell thick
the heart muscles.
5. Carry deoxygenated 2. Have gaps between cells
2. Blockage by fats Thickest chamber is the left
blood. Except pulmonary for exchange by diffusion.
or cholesterol ventricle because it pumps
vein. 3. Connect arteries to veins.
causes heart attack. the blood around the whole
Heart Rate/ Pulse rate speed up
1. Muscles need more oxygen Exercises body
2. Muscles need more energy
3. Muscles need to get rid of more carbon dioxide