| bronchial bud | One of the outgrowths from the primordial endodermal laryngotracheal tube giving rise to the primary bronchi. See: laryngotracheal diverticulum. (05 Mar 2000) |
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| bud | <botany> A small swelling or projection on a plant, from which a shoot, cluster of leaves, or flowers develops, a rudimentary, undeveloped shoot, leaf, or flower. (09 Oct 1997) |
| bud fission | 1. <biology> The formation of a new individual, either animal or vegetable, by a process of budding; an asexual method of reproduction; gemmulation; gemmiparity. See Budding. 2. <botany> The arrangement of buds on the stalk; also, of leaves in the bud. Origin: Cf. F. Gemmation. Source: Websters Dictionary (01 Mar 1998) |
| bud stage | First stage of tooth development; development of the primordia of the enamel organs, the tooth buds. (05 Mar 2000) |
| vascular bud | An endothelial sprout arising from a blood vessel. (05 Mar 2000) |
| mary-bud | <botany> The marigold; a blossom of the marigold. Source: Websters Dictionary (01 Mar 1998) |
| median tongue bud | A small median protuberance on the floor of the oral cavity of the embryo between the mandibular and hyoid arches, which plays a minor role in the development of the tongue. Synonym: median tongue bud. (05 Mar 2000) |
| metanephric bud | The primordial cellular outgrowth from the mesonephric duct that gives rise to the epithelial lining of the ureter, of the pelvis, and calyces of the kidney, and of the straight collecting tubules. Synonym: ureteric bud. (05 Mar 2000) |
| gustatory bud | One of a number of flask-shaped cell nests located in the epithelium of vallate, fungiform, and foliate papillae of the tongue and also in the soft palate, epiglottis, and posterior wall of the pharynx; it consists of sustentacular, gustatory, and basal cells between which the intragemmal sensory nerve fibres terminate. Synonym: caliculus gustatorius, gustatory bud, Schwalbe's corpuscle, taste bulb, taste corpuscle. (05 Mar 2000) |
| syncytial bud | A localised aggregation of syncytiotrophoblastic nuclei in the villi of the placenta during early pregnancy. Synonym: syncytial bud, syncytial sprout. (05 Mar 2000) |
| tail bud | The rapidly proliferating mass of cells at the caudal extremity of the embryo; remnant of the primitive node. Synonym: end bud. (05 Mar 2000) |
| taste bud | One of a number of flask-shaped cell nests located in the epithelium of vallate, fungiform, and foliate papillae of the tongue and also in the soft palate, epiglottis, and posterior wall of the pharynx; it consists of sustentacular, gustatory, and basal cells between which the intragemmal sensory nerve fibres terminate. Synonym: caliculus gustatorius, gustatory bud, Schwalbe's corpuscle, taste bulb, taste corpuscle. (05 Mar 2000) |
| tooth bud | The primordial structures from which a tooth is formed; the enamel organ, the dental papilla, and the dental sac enclosing them. (05 Mar 2000) |
| end bud | The rapidly proliferating mass of cells at the caudal extremity of the embryo; remnant of the primitive node. Synonym: end bud. (05 Mar 2000) |
| ureteric bud | The primordial cellular outgrowth from the mesonephric duct that gives rise to the epithelial lining of the ureter, of the pelvis, and calyces of the kidney, and of the straight collecting tubules. Synonym: ureteric bud. (05 Mar 2000) |