title: Human muscle spindles: microfilaments in the group IA sensory nerve endings.
mesh_terms: D000328:Adult; D001369:Axons / Q000648:ultrastructure; D001485:Basement Membrane / Q000648:ultrastructure; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D005385:Fingers / Q000294:innervation; D006003:Glycogen; D006801:Humans; D008870:Microtubules / Q000648:ultrastructure*; D008875:Middle Aged; D008928:Mitochondria / Q000648:ultrastructure; D009470:Muscle Spindles / Q000378:metabolism / Q000648:ultrastructure*; D015879:Myosin Subfragments / Q000032:analysis / Q000378:metabolism; D009218:Myosins / Q000032:analysis; D009413:Nerve Fibers, Myelinated / Q000648:ultrastructure; D009431:Neural Conduction
chemical_list: D015879:Myosin Subfragments; D006003:Glycogen; D009218:Myosins