This resource contains resources for the Ch13 unit of OCR A, A level Biology (Neuronal communication). Included are powerpoints, worksheets and a unit summary sheet. All Q’s in slides have answers included so that your students can self assess. Worksheets contain a Q sheet and an Answer sheet. Ready to teach and useful for anyone teaching the unit for the 1st time. Includes resources for: Neurone structure Muscle structure (sarcomere and myofibril) Sliding filament theory Pacinian corpuscle Action potential Resting potential Saltatory conduction