title: An electron microscopical study of avian muscle spindles.
mesh_terms: D000818:Animals; D001717:Birds / Q000033:anatomy & histology*; D002196:Capillaries; D003094:Collagen; D003593:Cytoplasm; D006614:Hindlimb; D006652:Histological Techniques; D008297:Male; D008854:Microscopy, Electron; D009132:Muscles / Q000098:blood supply / Q000166:cytology*; D009210:Myofibrils; D009411:Nerve Endings; D009469:Neuromuscular Junction; D012519:Sarcoplasmic Reticulum
chemical_list: D003094:Collagen