Effects of Black Scorpion Androctonus crasicuda Venom on Striated Muscle Preparation in vitro.

Effects of venom from black scorpion Androctonus crasicuda (AC) were determined on isolated chick biventer cervices nerve-muscle and mouse hemidiaphragm preparations using twitch tension method. The isolated nerves were stimulated by electrical stimulator and response to each stimulus was recorded. The venom mainly acted prejunctionally to facilitate neuromuscular activity due to an increase in acetylcholine release.