What is the relationship between physiology and physiotherapy?

under skeletal muscle contraction in physiology,there a an infection called tetanus which can be treated by a physiotherapist, a therapist gains knowledge on how nerve impulses trigger muscular movements,phases of muscle twitch from physiology practicals,muscle fatigue and how it can be recored. from neurology a therapist may learn how to stimulate nerves thermally,mechanically and electrically. more is learnt on how to deal with cases that inhibit nerve impulses.