Download (45)Before you arrive for the Human Biology: Circulation and Blood

(45)Before you arrive for the Human Biology: Circulation and Blood
Pressure lab, please
1. Read the lab thoroughly, noting all safety guidelines.
2. Answer these preparatory questions:
What safety procedures should you be sure to follow during this lab period?
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What are the advantages of a closed circulatory system?_____________________
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How many chambers are found in a human heart? Is this the same for all
vertebrates?
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Where does the right side of the heart send blood?__________________________
Where does the left side of the heart send blood?___________________________
What is the advantage to separating the right side of the heart from the left side of
the heart?
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Where are the coronary arteries found? What do they supply with blood?
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Find the left anterior descending coronary artery. What specifically does it
supply with blood? Why is it especially critical that this artery is not blocked?
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If you were looking at a cross-section of an artery and a vein, how could you tell
the difference?
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What is the difference between systolic and diastolic pressure?
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What does a blood pressure of 120/80 mean?________________________
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What influences blood pressure?_________________________________________
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What must be done to an artery to begin measuring blood pressure?
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What are some of the consequences of prolonged high blood-pressure on the
body?
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What happens if blood pressure is too low?________________________________
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Is it always harmful for blood pressure to elevate? What might it indicate if blood
pressure elevates during exercise?
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When blood is drawn by a technician, is an artery or a vein tapped? Why?
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What is the approximate size of the human heart? __________________________
What makes up 55% of the blood? ________________________________________
How many red blood cells can be found in a drop of blood?___________________
What is another name for white blood cells?______________________________
What is a pulse point? List the pulse points in the human body.
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