Download Webquest – The Cardiovascular System

Webquest – The Cardiovascular System (a.k.a. The Circulatory System)
Go to:
http://www.nlm.nih.gov/changingthefaceofmedicine/activities/circulatory.html
click on: Overview
a. read the paragraph
b. Roll over the circled images to explore the
circulatory system
click on: The Body’s Superhighway
cliclk on: step 1
a. read the paragraph
b. Roll over the circled images to explore the heart
click step 2
a. read the paragraph
b. Roll over the circled images to explore the lungs
1. define the following terms:
• trachea –
• bronchi -
• brochiole –
• alveoli -
click step 3
a. read the paragraph. Notice that it says, “Your arteries are blood vessels that carry oxygen-rich blood
away from your heart out to the rest of your body.” For the most part, that is true, but not entirely.
What is wrong with this statement?
click step 5
a. read the paragraph.
b. Roll over the circled images to explore the valves in veins. How do valves help blood get back to your
heart?
click step 4
a. read the paragraph.
b. Define capillary
Red blood cell flow through capillary
c. Why is it important for capillary walls to be so thin?
Go to:
http://www.kscience.co.uk/animations/blood_system.swf
a. Arteries branch into arterioles, which then branch into capillaries. Capillaries then branch into
venules, which then branch into veins. In this animation what color are capillaries represented with?
b. Why do you suppose that color was chosen for capillaries?
……….FINISH COLORING YOUR HEART DIAGRAM