|Previous Quizzes  Weekly Interlinear Poem   Dictionary  Acronyms and Abbrev.  Word Origins  How to Link to this Page |
[A new interlinear poem will be available each Monday: Weekly Interlinear Poem .]
Use the dictionary, the acronym finder, and the word origins dictionary (links above) as needed. A new quiz is available each Monday through Thursday. This is the quiz for October 14.
William Harvey (died 1657) was an English physician who is credited with being the first in the Western world to describe correctly the circulation of blood being pumped around the body by the heart.
This idea clashed with the accepted model going back to Galen, who identified venous (dark red) blood and arterial (brighter and thinner) blood, each with distinct and separate functions. Venous blood was thought to originate in the liver and arterial blood in the heart. The blood was thought to be produced in these organs and to flow from these organs to all parts of the body, where it was consumed.
Harvey based most of his conclusions on careful observations recorded during vivisections made of various animals, being the first person to study biology quantitatively. He did an experiment to see how much blood would pass through the heart each day. In this experiment he used estimates of the capacity of the heart, how much blood is expelled during each pump of the heart, and the number of times the heart beats in half an hour. All of these estimates were purposefully low, so that people could see the vast amount of blood Galen's theory required the liver to produce.
1. Galen wasA. a Renaissance physician.2. Harvey was the first biologist
B. the founder of modern medicine.
C. a friend of William Harvey.
D. a Greek anatomist of the 2nd century.A. to give credit to Galen.3. Venous means
B. to make careful measurements.
C. to study blood in animals.
D. to study the human heart.A. contained in the veins.4. Harvey understood that
D. exhausted.A. blood is produced and then consumed.
B. blood is produced in the heart.
C. blood is recycled.
D. blood is produced in the liver.
The information comes from Wikipedia.
Write down your answers and then see Answer Key below.
Answer Key: 1-D..........2-B..........3-A..........4-C
Corrections? Questions? Comments? E-mail Robert Jackson at firstname.lastname@example.org.