Chorion vs Eggshell - What's the difference?
chorion | eggshell |
(anatomy, biology) The protective and nutritive membrane in higher vertebrates that attaches the fetus to the uterus.
* 2002 , Rovert E. A. Stewart, Barbara E. Stewart, Female Reproductive Systems'', entry in ''Encyclopedia of Marine Mammals ,
* 2006 , Ona Marie Faye-Petersen, Debra S. Heller, Vijay V. Joshi, Handbook Of Placental Pathology ,
* 2007 , Susan Tucker Blackburn, Maternal, Fetal, & Neonatal Physiology: A Clinical Perspective ,
(biology, entomology) The outer case of an insect egg.
* 1994 , Klaus Urich, Comparative Animal Biochemistry ,
* 1998 , R. F. Chapman, The Insects: Structure and Function ,
* 2008 , John L. Capinera, Eggs of Insects'', entry in John L. Capinera (editor), ''Encyclopedia of Entomology ,
(botany) The outer membrane of seeds of plants.
Of a pale yellowish-whitish colour, like that of the eggshell.
Exhibiting the thinness, translucency or near-transparency, and fragility of an eggshell; as in eggshell porcelain.
As nouns the difference between chorion and eggshell
is that chorion is (anatomy|biology) the protective and nutritive membrane in higher vertebrates that attaches the fetus to the uterus while eggshell is the shell around an egg.As an adjective eggshell is
of a pale yellowish-whitish colour, like that of the eggshell.chorion
English
(wikipedia chorion)Noun
(en-noun)page 425,
- The allantois fuses with the chorion , forming a small round area, the allentochorion. This region becomes the placenta (Fig. 3).
page 4,
- In this illustration, some license is taken, since the amnion is shown as still separate from the chorion'; this is done to illustrate the process of apposition of the amniotic sac to the '''chorion''' and to accentuate the interposition of the yolk sac between the amnion and the ' chorion .
page 106,
- The amnion and chorion begin to develop soon after fertilization and continue to grow until about 28 weeks? gestation.
page 392,
- The chorion has a predominantly lamellar structure, the lamellae being two-dimensional networks of protein fibrils.
page 326,
- Even closely related species may have chorions' differing in thickness. In the silkmoths, for example, the '''chorion of ''Bombyx'' is about 25 ?m thick while that of ''Hyalophora is 55 ?m thick.
page 1290,
- In addition to facilitating gas exchange and water conservation, the chorion must, in some cases, allow uptake of water or liquid nutrients from the environment.