Circulatory System - Page 2
Questions
- Is your heart rate faster when you are standing than it is when you are sitting?
- As a general rule, does the heart rate of an animal increase or decrease with size? Is there a certain pattern?
- What plane divides the heart into atria and ventricles?
- Why are arteries red and veins blue?
- What are cells that help protect the body from disease called? Which chamber receives blood from the body?
- Does the lymphatic system absorb fat from the small intestine? Does it supply cells with oxygen and nutrients, and carry away carbon dioxide and wastes?
- How does blood travel from the right atrium back to the right atrium?
- What is the name of the serous layer that covers the heart muscle?
- What do clotting proteins include?
- Does the lymphatic system take up excess tissue fluid at the site of capillaries? Does it contain the same proteins as blood?
- Is having thin veins good, bad, or neutral for health?
- Where are the pacemaker cells located in the heart?
- What is heart cauterization?
- How does smoking affect arteries?
- What are the six heaviest organs in the human body?
- Is heart disease hereditary? Can a person who subscribes to a very healthy lifestyle suffer a heart attack due to hereditary factors?
- What is the structure and function of the heart of a fish?
- What are the main organs of the lymphatic system and what are their functions?
- What are the smallest blood vessels in the human body?
- What veins carry oxygenated blood?