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Hello! Spasm means contraction, so bronchial spasms is spasmodic contraction (like cramping) of the smooth muscle of the bronchi. Bronchi is word with origins in Greek word, bronchos, which means a conduit to the lungs. So, bronchi are the large air tubes, which are leading form trachea to the lungs and they convey air to and from (opposite direction) lungs.
