A peculiar mode of muscular innervation in Amphioxus. Light and electron microscopic studies of the so-called ventral roots.
D000818:Animals; D001369:Axons; D001485:Basement Membrane; D002816:Chordata, Nonvertebrate; D066298:In Vitro Techniques; D008027:Light; D008853:Microscopy; D008854:Microscopy, Electron; D009470:Muscle Spindles / Q000033:anatomy & histology*; D009210:Myofibrils; D009411:Nerve Endings; D010784:Photomicrography; D013116:Spinal Cord / Q000033:anatomy & histology*; D013127:Spinal Nerves / Q000033:anatomy & histology*