end bud

bud (bud)

1. a structure on a plant, often round, that encloses an undeveloped flower or leaf.

2. any small part of the embryo or adult metazoon more or less resembling the bud of a plant and presumed to have potential for growth and differentiation.

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end bud  caudal eminence.

limb bud  a swelling on the trunk of an embryo that becomes a limb.

periosteal bud  vascular connective tissue from the periosteum growing through apertures in the periosteal bone collar into the cartilage matrix of the primary center of ossification.

tail bud 

1. in animals having a tail, the primordium that forms it.

2. caudal eminence.

taste bud  one of the end organs of the gustatory nerve containing the receptor surfaces for the sense of taste.

ureteric bud  an outgrowth of the mesonephric duct giving rise to all but the nephrons of the permanent kidney.

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end bud

n.

See tail bud.

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end bud

Etymology: AS, ende + Gk, bolbos, onion

a mass of undifferentiated cells produced from the remnants of the primitive node and the primitive streak at the caudal end of the developing embryo after formation of the somites is completed. In lower animals it gives rise to the tail or any other caudal appendage and part of the trunk. In humans it forms the caudal portion of the trunk. Also called tail bud.

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bud [bud]

1. a structure on a plant, often round, that encloses an undeveloped flower or leaf.

2. something resembling the bud of a plant, especially a protuberance in the embryo from which an organ or part develops.

end bud the remnant of the embryonic primitive knot, from which arises the caudal part of the trunk.

limb bud one of the four lateral swellings appearing in vertebrate embryos, which develop into the two pairs of limbs.

tail bud

the primordium of the caudal appendage.

end bud.

taste b's end organs of the gustatory nerve containing the receptor surfaces for the sense of taste.

ureteric bud a dorsal outgrowth of the mesonephric duct near its entry into the cloaca; it is the primordium of the ureter, renal pelvis, calices, and collecting tubules of the kidneys.

bud of urethra bulb of urethra.

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bud

a structure resembling the bud of a plant, especially a protuberance in the embryo from which an organ or part develops.

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end bud

the remnant of the embryonic primitive knot, from which arises the tail and caudal part of the trunk.

horn bud

bilateral cranial protuberances, destined to develop to a fighting horn or antler stage.

limb bud

one of the four lateral swellings appearing in vertebrate embryos, which develop into the two pairs of limbs.

tail bud

1. the primordium of the caudal appendage.

2. end bud.

taste b's

end organs of the gustatory nerve containing the receptor surfaces for the sense of taste.

ureteric bud

an outgrowth of the mesonephric duct giving rise to all but the nephrons of the permanent kidney.

bud of urethra

bulb of urethra.