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In the gonad of the invertebrate nematode Caenorhabditis elegans, a rachis is the central cell-free core or axis of the gonadal arm of both adult males and hermaphrodites where the germ cells have achieved pachytene and are attached to the walls of the gonadal tube.
Rachis o Raqui (también escrito Ratchis, Raditschs, Radics, Radiks; m. después de 757) fue duque de Friuli (739-744) y rey de los lombardos (744-749).
Une fiche anatomique détaillée sur la colonne vertébrale ou rachis, ses parties, ses fonctions et ses pathologies. Découvrez les vertèbres, les disques intervertébraux, le système nerveux, les ligaments, les muscles et les vaisseaux sanguins qui composent la colonne.
Definición RAE de «raquis» según el Diccionario de la lengua española: 1. m. Anat. columna vertebral (‖ eje del neuroesqueleto de los vertebrados). 2.
Rachis is the stalk of a compound leaf or a spikelet in plants, such as wheat, barley, and ash. Learn how rachis affects seed dispersal, domestication, and disease resistance in different crops and species.
Rachis is the midrib of a compound leaf that connects the leaflets to the petiole. Learn about the types, functions, and adaptations of leaves and their parts, such as rachis, stipules, and venation, with Britannica.
Rachis is a noun that refers to an axial structure, such as the axis of an inflorescence, the extension of a compound leaf, or the shaft of a feather. Learn more about its etymology, examples, and related words from Merriam-Webster.
