Science 10

   pg 247 #4,5 and Reaction Review WS, notes from today are posted below.

   Test on Monday on Chp 6

Human Physiology 110

   complete assignment that was started in class today pg 383 #1,2, Section Review 22-1 and the following quesitons

1. Which two valves prevent blood from flowing backwards?

2. Why do we say that the circulatory system is a closed system?

3. What is the difference between a ventricle and an atrium?

4. Name the three valves contained within the heart.