Thursday, 9 January 2014

Echinoderm Dissection Questions

External features:

Make observations about the size, symmetry, colour and texture of your specimen.
Note the oral and aboral surfaces.
Find the madreporite & radial arms.
Find the tube feet & mouth.

Internal features:

Carefully cut two radial arms as shown...

Make observations about the internal features of our specimen - find the pyloric ceaca, gonads, ampulla, tube feet.
Cut around the central disc of the aboral surface and try to find the pyloric and/or cardiac stomach.

What were you surprised by with this dissection?  What other questions do you have now?

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