Calyx (anatomy) kidney, a conglomeration of two or three minor calyces to form a major calyx, or the Calyx of Held, a particularly large synapse in the mammalian auditory central nervous system, named by H. Held in his 1893 article "Die centrale Gehörleitung", due to its flower-petal-like shape. In male insects, a funnel-shaped expansion of the basal part of the "vas deferens" (part of the seminal duct). Also in entomology, a flattened cap of neuropile in an insect brain (a component of the corpus pedunculatum) and by certain female insects, an expansion of the oviduct into which the ovarioles open. Calyx (anatomy)
Plant physiology plants in a water solution rather than soil, which has become a standard technique in biological research, teaching lab exercises, crop production and as a hobby. One of the leading journals in the field is "Plant Physiology", started in 1926. All its back issues are available online for free. Many other journals often carry plant physiology articles, including "Physiologia Plantarum", "Journal of Experimental Botany", "American Journal of Botany", "Annals of Botany", "Journal of Plant Nutrition" and "Proceedings of the National Academy of Sciences." In horticulture and agriculture along with food science, plant physiology is an important topic relating to fruits,