Vídeos
Transporte retrógrado e acção da toxina
www.youtube.com/watch?v=cPG8_6bvGKk
Contracção muscular (espasmos) com tétano
https://student.ccbcmd.edu/courses/bio141/lecguide/unit2/bacpath/tetexo.html
Contracção e relaxamento muscular sem tétano
student.ccbcmd.edu/courses/bio141/lecguide/unit2/bacpath/relax.html
Mecanismo das SNARES
https://stke.sciencemag.org/content/vol2004/issue264/images/data/re19/DC2/slowtrack2.swf