Ena (placenta) - Ena

Japanese: えな（胞衣） - えな

…It is also called the afterbirth stage, and medically it is also called the afterbirth stage. After the fetus is delivered, the placenta, umbilical cord, and amniotic membrane are delivered, and this stage is called the afterbirth stage. When referring to the stage, it is also called the afterbirth stage or the third stage of labor. Usually, when the fetus is delivered, the uterus shrinks rapidly, but soon after, stronger contractions (afterbirth pains) occur, causing the placenta to detach from the uterine wall and then be expelled from the vagina. …

From Okinawa [Prefecture]

…
[Rite of Passage]
The birth took place next to a hearth built in the back room, and even in summer a fire was lit to keep the baby warm after birth. The placenta was buried under a raindrop behind the kitchen where the god of fire was enshrined, and the women and children of the neighborhood laughed loudly and prayed for the baby's health. Until the baby was named, boys were called "big girl" and girls "big man," in accordance with the opposite gender.

*Some of the terminology that mentions "placenta" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…〈のちざん〉ともいい，医学的には〈こうさん〉ともいう。胎児娩出後に胎児付属物である胎盤，臍帯（さいたい），卵膜が娩出されるが，この娩出されたもの，またはこの時期をいい，時期を指すときはとくに後産期placental stage，または分娩第3期ともいう。ふつう胎児が娩出されると，子宮は急速に縮小するが，まもなくさらに強い収縮(後産期陣痛)がおこって，胎盤が子宮内壁から剝離（はくり）し，次いで腟外へ排出される。…

【沖縄[県]】より

…
［通過儀礼］
　出産は裏座に〈地炉（じろ）〉を作って，その脇で行い，夏でも産後は火をたいて暖めていた。えな(胞衣)は火の神がまつってある台所裏手の雨だれの下に埋めたが，近所の婦人や子供たちに大声で笑ってもらい，生児が健康に育つよう祈った。命名までの間，子供の性の反対に男児は〈大女〉，女児は〈大男〉とよんだ。…

※「えな（胞衣）」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典第２版について | 情報

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