title: Extrafusal muscle and muscle spindles in reptiles.
mesh_terms: D000489:Alligators and Crocodiles / Q000033:anatomy & histology; D000818:Animals; D008116:Lizards / Q000502:physiology; D009119:Muscle Contraction; D009470:Muscle Spindles / Q000502:physiology* / Q000648:ultrastructure; D009132:Muscles / Q000294:innervation / Q000502:physiology* / Q000648:ultrastructure; D012023:Reflex, Monosynaptic; D012104:Reptiles / Q000502:physiology*; D012911:Snakes / Q000502:physiology; D014426:Turtles / Q000502:physiology