circulatory system 8

Pulse rates can rise and fall from exercise. What are some factors that can effect the pulse rate.  When is an increase in pulse rate beneficial? When is it harmful? 

circulatory system 7

Identify the following as having oxygen rich or carbon dioxide filled blood.
aorta


coronary arteries 


coronary veins 




inferior vena cava 


left atrium 


right atrium 


left ventricle 






right ventricle 


superior vena cava 

What is the color of blood?

The past few weeks the question of the color of blood has come up on class.  Is blood always red ? Is blood sometimes blue? Can blood change color? Thinking further what does cause something to have color? Is there color  if light is absent? 
Please remember to cite your sources so others may see where you gathered your information. 

Circulatory System 5

There are two types of circulatory systems open and closed. Please give an example of an organism that has an closed system and one that has an open system.  Compare and contrast and open system to a closed system.

Circulatory System 4

The last few post of the challenge blog have traced the development of human understanding of the circulatory system. Ideas about how a system works can start with misconceptions about the true nature of a system. One such misconception was that veins carried air through out the body. Please research and post some common misconceptions that were held about the circulatory system. Did you have any  personal misconceptions about how the circulatory system works?  Please share your misconceptions or how your understanding about the circulatory system has changed.

Circulatory System 3

What contributions did Christiaan Barnard and Dr. Jarvick  make to medicine? What further advances have been made in areas which Barnard and Jarvik worked.

Circulatory System 2

William Harvey and Dr. Daniel Hale both were important in the development of our knowledge of the circulatory system. Tracing  how knowledge of the circulatory system developed where does the work of Galen fit.  What other individuals have contributed to the scientific knowledge of the circulatory system.

Circulatory System 1

Who was William Harvey and what did Harvey do to develop his theory of circulation? Does the work of will Harvey still hold relevance in medical research today? What connection can you make between the work of William Harvey and Dr. Daniel Hale Williams?