Hensen disk


Hensen disk

The band in the center of the A disk of a sarcomere of striated muscle. During contraction it appears lighter than the remaining portion of the disk, and in its center, a dark stripe, the M line, is seen. Synonym: H bandSee also: Hensen, Christian Andreas Victor

Hensen,

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.