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CHORION
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DeCS
Descriptor
English
:
Chorion
Descriptor
Spanish
:
Corion
Descriptor
Portuguese
:
Córion
Tree Number:
A10.615.284.473
A16.254.750.473
Definition
English
:
The outermost extra-embryonic membrane surrounding the developing embryo. In
REPTILES
and BIRDS, it adheres to the shell and allows exchange of gases between the egg and its
environment
. In
MAMMALS
, the
chorion
evolves into the fetal contribution of the
PLACENTA.
See Related
English
:
Chorioallantoic Membrane
History Note
English
:
78(75); was see under FETAL MEMBRANES 1963-77
Allowable Qualifiers
English
:
AB
abnormalities
AH
anatomy & histology
BS
blood supply
CH
chemistry
CY
cytology
DE
drug effects
EM
embryology
EN
enzymology
GD
growth & development
IM
immunology
IN
injuries
IR
innervation
ME
metabolism
MI
microbiology
PS
parasitology
PA
pathology
PH
physiology
PP
physiopathology
RE
radiation effects
RA
radiography
RI
radionuclide imaging
SE
secretion
SU
surgery
TR
transplantation
US
ultrasonography
UL
ultrastructure
VI
virology
Record Number:
2873
Unique Identifier:
D002823
Occurrence in VHL
:
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