In this condition the overdistended muscular coat of the bladder has lost its power of contraction, so that true paralysis has set in, the muscle closing the mouth of the sac alone retaining its contractile power.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
These currents run alike from cell to cell, and from cell to peripheral fibre, and act by means of the latter on all contractile, and especially all muscular tissue, causing contractions, which, after poisonous doses of the drug, assume the form of tetanic convulsions, provoked by the slightest touch or even noise in consequence of highly intensified reflex action.
"On Snake-Poison: its Action and its Antidote"
A. Mueller
The muscles are the contractile organs that move the body.
"Common Diseases of Farm Animals"
R. A. Craig, D. V. M.