Monday, March 22, 2010

Circulatory System Craziness!

Some fun stuff for today's lesson!

First, a look into the components of blood:


Flow of blood through capillaries:


A white blood cell chasing a bacterium:




A 3D model of the heart that can be virtually dissected:
http://thevirtualheart.org/anatomyindex.html

The operation of the heart:


And finally, an overview of the digestive system in case you forgot:


Valve operation: (http://www.arthursclipart.org/medical/circulatory/valves%20in%20vein%203.gif)

A video of the valves in action:

Friday, March 12, 2010

Unit 8 Study Guides - Hot off the Press!

Here are the scans of the study guides you all put together today - thanks for the great effort! I am including links to the guides made by both periods so you can benefit from the efforts of all 40 students in the two sections.

Enjoy!

Period 3 Study Guide
Period 4 Study Guide

Wednesday, March 10, 2010

Stem Cell Links

Stem cell technology is one of the most active areas in developmental biology. I hope that today's discussion leads you to explore more on your own.

Here are the links we used in today's lesson:

The animation describing differentiation and diseases that might be cured by stem cells can be found here.

Seeds of Hope video about the potential for stem cell technology:
http://www.teachersdomain.org/asset/tdc02_vid_stemcellvid/

Also, here is a good summary video about the process of development from a zygote to a gastrula:

Reproductive Technology videos

Overview on amniocentesis:


In vitro fertilization:

Thursday, March 4, 2010

Meiosis Videos

Meiosis overview:


Another one: