Calyx of Held nervous system has allowed for direct research within a mammalian model and the large size increases the ease of electrophysiological recording. For these reasons it has been popular in understanding transmitter release. Specifically, the calyx of Held is used because of: Calyx of Held The Calyx of Held is a particularly large synapse in the mammalian auditory central nervous system, so named by Hans Held in his 1893 article "Die centrale Gehörleitung" because of its resemblance to the calyx of a flower. Globular bushy cells in the anteroventral cochlear nucleus (AVCN) send axons to the contralateral medial nucleus of the
Astrological botany Virgo. Astrological botany was often used in conjunction with the doctrine of signatures, which held that the physical form of a plant reflected its medicinal use. In the words of Agnes Arber, England became "badly infected" with astrological botany during the 17th century, when its most "notorious" practitioner was Nicholas Culpeper. Astrological botany Astrological botany is based on the notion that if plants or seeds are to be used for medicinal purposes then their planting and collection must be carried out with regard to the positions of the planets and other heavenly bodies, which are at the heart of the