Chapter 2:

Question 1

Describe the changes in gravitational potential energy as blood goes from the heart, to the peripheral tissue, and back to the heart:

Answer 1

1. Heart to lungs - Blood raises up slightly, causing an increase in gravitational potential energy.
2. As blood goes back to the heart it will go back to the initial gravitational potential energy.
3. As blood leaves the heart and goes up the aorta, the gravitational potential energy will slightly increase.
4. As blood leaves the aorta and goes into peripheral vessels, the gravitational potential energy will drastically decrease.
5. As blood returns to the heart via venous return, gravitational potential energy is slowly (venous return is slow) increasing back to the initial gravitational potential energy.

DRAW OUT AS A GRAPH!