The placenta or after-birth, esp. of a cow.
| 单词 | θ43552 |
| 释义 | the world > animals > mammals > [noun] > parts of > placenta and related parts (7) glean1601 The placenta or after-birth, esp. of a cow. placenta1638 Anatomy and Zoology. A round, flat, spongy, vascular organ to which the fetus of most mammals (i.e. those other than monotremes and marsupials: see… subplacenta1807 A structure located on the maternal side of the placenta; spec. that found in hystricomorph rodents, formed by the trophoblast, containing spaces… trophocalyx1889 (in certain mammals, as bats and moles) a cup-shaped structure or layer of tissue formed during the development of the placenta. trophodisc1889 (in certain mammals, as rabbits) a disk-shaped structure or layer of tissue formed during the development of the placenta. trophosphere1889 a spherical structure or layer of tissue formed in the early stages of implantation of the blastocyst. trophospongia1889 a layer of tissue containing numerous vascular spaces, formed between the ovum and uterine lining in the early stages of implantation. |
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