There are three kinds of blood cells. Red blood cells are the oxygen-carrying cells; white blood cells fight infection; and platelets help with blood clotting.

 Blood Components
 Blood Types
 Blood Vessels
A Sweet Way to Grow Blood Vessels
A Sweet Way to Grow Blood Vessels by Tim Wogan, 1 July 2012, ScienceNow "Imagine a world where if your heart or kidneys failed, you wouldn't have to endure an agonizing, possibly futile wait for
Blood - Contents and function
Blood - Contents and function Biotopics.uk A combination of text and illustrations on the types of substances in blood.
blood cells
blood cells By Jeffrey W. Hull, M.D., F.A.A.P Parent's Common Sense Encyclopedia A review of the cells types that circulate in the blood stream.
Blood Cells
Blood Cells Wikipedia.org Brief overview of the three categories of cells found in blood with links to the main articles Wikipedia has on platelets, and red and white blood cells. Click on image
Blood Groups and Heredity
Blood Groups and Heredity, Contra Costa County Office of Education, Interactive tutorial.
Blood Type Genetics Lab
Blood Type Genetics Lab By Elliot Kimmed ZeroBio.com "In the genetics lab you can experiment with different blood types and learn what happens when they are donated to a recipient."
Blood: We can't live without it
Blood: We can't live without it, Children, Youth and Women's Health Service, Geared toward younger people, through text and illustrations, it explains what blood is, what it's made up of, types of
Cardiac Cycle
Cardiac Cycle From: sheekshampoo YouTube.com A 01:52 video.
Contents of Blood
Contents of Blood, Abu Dhabi's Men College, Video length: 09:28
Formation of Blood Cells
Formation of Blood Cells Merck Manual Brief all-text article on the origination of blood cells.
Hematopoiesis - Video
Hematopoiesis, May 7, 2014, By Khan Academy, Video length: 10:07.
Human Blood Slide Show
Human Blood Slide Show By Elliott Kimmed ZeroBio.com "Slideshow with images and descriptions of blood cells and some blood-borne diseases."
Introduction to Blood Cells
Introduction to Blood Cells Microscope Imaging Station Exploratorium.edu From this one page, you can view images and movies on human and animal blood cells that The Exploratorium offers on thei
NHS
Blood Groups, UK NHS, There are four main blood groups (types of blood): A, B, AB and O. Your blood group is determined by the genes you inherit from your parents. Visit the website to learn
Phases of the Cardiac Cycle
Phases of the Cardiac Cycle By Regina Bailey, ThoughtCo. "The cardiac cycle is the cycle of events that occurs as the heart contracts. There are two phases of the cardiac cycle." Visit the web
The Blood Cells
The Blood Cells By Daniela Tagliasacchi & Giorgio Carboni Fun Science Gallery A great resource for everything related to blood cells. It has microscopic images and illustrations along with text
What are two differences between oxygenated blood and deoxygenated blood?
What are two differences between oxygenated blood and deoxygenated blood? Answers.com WikiAnswers Visit the website for the answer.
What is Blood? Video
What is Blood?, By americasbloodcenters, YouTube.com, "Function and composition of human blood." Video length: 02:24.
What's Inside of Blood? - Video
What's Inside of Blood?, Dec. 10, 2012, By Khan Academy, Video length: 11:08.