FUNCTIONS
Name TWO substances that are transported by the circulatory system
Oxygen
Carbon Dioxide
Nutrients
Waste products
Water
Name the four major components of blood
1. Plasma
2. Red Blood Cells
3. White Blood Cells
4. Platelets
How many chambers does the heart have?
Four
Arteries carry blood ___________ the heart.
Away from
What type of blood enters the right atrium from the body?
Deoxygenated blood
What is the function of red blood cells?
Transport oxygen and carbon dioxide from lungs to the cells of the body
Approximately what proportion of the blood is plasma?
A. 60%
B. 65%
C. 55%
D. 50%
C. 55%
What is the name of the top chambers of the heart?
Atrium (Atria- plural)
What feature do veins have that arteries and capillaries do not?
Valves
Which side of the body has deoxygenated blood?
Right side
With the exception of transporting nutrients/gases, name TWO other functions of the circulatory system
1. Circulates blood to all areas of the body
2. Helps to maintain correct body temperature
3. Helps to fight disease
What is the function of platelets?
Create clots in the blood when a blood vessel is damaged.
Septum
Name the two main arteries that leave the heart.
1. Aorta
2. Pulmonary Arteries
Name the two major arteries that bring blood back to the heart from the head & body.
Superior & Inferior vena cava
What is the function of the valves in the heart?
To stop blood flowing backwards from the ventricle to the atrium.
Name one substance that is transported by plasma
1. Nutrients (glucose)
2. Hormones
3. Waste products
Which chamber of the heart has the thickest walls? (Hint: Think about where they pump the blood)
Left ventricle
Veins return blood to the heart. Explain how this happens.
Skeletal muscle contraction squeezes the vein
After gas exchange occurs in the lungs, name the FOUR structures the blood travels through before it reaches the body.
1. Pulmonary veins
2. Left atrium
3. Left ventricle
4. Aorta
How does the blood regulate body temperature?
It absorbs heat from the working muscles and takes it to the skin (sweat) and lungs (breath)
Name the two locations where white blood cells are produced.
Bone marrow & lymph nodes
Name the structure that blood travels through last as it leaves the heart.
The Aorta
Identify the following characteristics of arteries:
1. Thickness of blood vessel
2. Pressure of blood flow
3. Elasticity
1. Very thick walls
2. High pressure
3. Very elastic
Is this blood flow chart correct?
Vena Cava -> Right atrium -> Right ventricle -> Pulmonary vein (out to lungs) -> Pulmonary Artery (in from lungs) -> Left atrium -> Left Ventricle -> Aorta (out to body)
200 BONUS POINTS TO CORRECT IT
No.
Pulmonary vein & artery are the wrong way around.