| 释义 |
DictionarySeenodeHensen node
prim·i·tive nodea local thickening of the epiblast at the cephalic end of the primitive streak of the embryo (the node is an embryonic organizer). Synonym(s): Hensen knot, Hensen node, Hubrecht protochordal knot, primitive knot, protochordal knotprim·i·tive node (prim'i-tiv nōd) A local thickening of the embryonic disc or blastoderm at the cephalic end of the primitive streak of the embryo.
Synonym(s): Hensen node, primitive knot. Hensen nodeA mass of rapidly proliferating cells at the anterior end of the primitive streak of the embryo.See also: Hensen, Christian Andreas VictorHensen, Victor, German anatomist and physiologist, 1835-1924. Hensen canal - a short membranous tube passing from the lower end of a saccule to the cochlear duct of the membranous labyrinth. Synonym(s): Hensen duct; uniting ductHensen cell - one of the supporting cells in the organ of Corti.Hensen disk - Synonym(s): Hensen lineHensen duct - Synonym(s): Hensen canalHensen knot - a local thickening of the blastoderm at the cephalic end of the primitive streak of the embryo. Synonym(s): Hensen node; primitive nodeHensen line - the paler area in the center of the A band of a striated muscle fiber, comprising the central portion of thick filaments that are not overlapped by thin filaments. Synonym(s): H band; Hensen diskHensen node - Synonym(s): Hensen knotHensen stripe - a band on the undersurface of the membrana tectoria of the cochlear duct. |