title: The effects of contraction and stretch of a muscle on morphology of its spindles.
mesh_terms: D000470:Alkaloids / Q000494:pharmacology; D000818:Animals; D002415:Cats; D009119:Muscle Contraction / Q000187:drug effects / Q000502:physiology*; D009470:Muscle Spindles / Q000033:anatomy & histology*; D009132:Muscles / Q000033:anatomy & histology / Q000294:innervation*; D009210:Myofibrils / Q000033:anatomy & histology / Q000502:physiology
chemical_list: D000470:Alkaloids