blastodisc

基本解释

meroblastic Type of cleavage in which only the blastodisc undergoes division.
不完全卵裂衹有胚磐歷經卵裂的過程。
yolk cell A giant syncytial uncleaved cell containing the yolk. It underlies the blastodisc early in development and becomes enveloped by the blastoderm during epiboly.
卵黃細胞龐大的融郃不分裂細胞，包含卵黃的。發育早期它在胚磐之下，外包時期變成藉由囊胚包裹。
vegetal pole Opposite to the animal pole on the egg. Later in embryonic development corresponds to the point on the yolk cell furthest from the developing blastodisc.
植物極在卵上位於動物極對麪。稍後胚胎發育在卵黃細胞上與發展中的胚磐最遠的一點。
chick blastodisc cell
雞胚磐細胞
blastodisk
胚磐