Wednesday, April 25th, 2012

Biology 11 - Periods 1 and 3

• Presentations for our first four phyla today.  Porifera, Cnidaria, Platyhelminthes and Nematoda.  Presentations finish next class.

Biology 12 - Period 4

• Threshold, all or none, saltatory conduction, Schwann cells, nodes of Ranvier, myelin sheaths.  Whew, lots of info.  As usual.
• Transmission across the synapse next day.