title: [Formation of the circulatory bed of the neuromuscular spindles in forearm and hand muscles].
abstract: The data are presented on the formation and main constitutional principles in the blood supply of the neuromuscular spindles in the human forearm and hand during embryogenesis and early postnatal life. It has been stated that the neuromuscular spindles posses their own microcirculatory bed which is formed by the vessels of the surrounding muscular tissue, tends to separate in the course of development and subdivides into two parts: extracapsular and intracapsular. The vessels of the extracapsular part form dense capillary nets on the external surface of the capsule and follow extracapsular parts of the intrafusal muscular fibres. The intracapsular vessels either cover the internal surface of the capsule, or adjoin the intrafusal muscular fibres, or else run in the free subcapsular space.
mesh_terms: D000367:Age Factors; D002196:Capillaries; D005542:Forearm; D005865:Gestational Age; D006225:Hand; D006801:Humans; D007231:Infant, Newborn; D024510:Muscle Development; D009470:Muscle Spindles / Q000098:blood supply*; D009132:Muscles / Q000098:blood supply* / Q000196:embryology
vernacular_title: Formirovanie gemotsirkuliatornogo rusla nervno-myshechnykh vereten v myshtsakh predplech'ia i kisti.