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EXTRAEMBRYONIC MEMBRANES
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DeCS
Descriptor
English
:
Extraembryonic Membranes
Descriptor
Spanish
:
Membranas Extraembrionarias
Descriptor
Portuguese
:
Membranas Extra-Embrionárias
Synonyms
English
:
Fetal Membranes
Tree Number:
A10.615.284
A16.254.750
Definition
English
:
The thin layers of tissue that surround the developing embryo. There are four extra-embryonic
membranes
commonly found in
VERTEBRATES
, such as
REPTILES
;
BIRDS
; and
MAMMALS
. They are the
YOLK SAC
, the
ALLANTOIS
, the
AMNION
, and the
CHORION
. These
membranes
provide
protection
and means to transport
nutrients
and wastes.
Indexing Annotation
English
:
induced
rupture
= LABOR, INDUCED; premature
rupture
= FETAL
MEMBRANES
, PREMATURE
RUPTURE
;
rupture
in normal labor =
EXTRAEMBRYONIC MEMBRANES
(IM) + LABOR, OBSTETRIC (IM)
Allowable Qualifiers
English
:
abnormalities
anatomy & histology
blood supply
chemistry
cytology
drug effects
embryology
enzymology
growth & development
immunology
injuries
innervation
metabolism
microbiology
pathology
physiology
physiopathology
parasitology
radiography
radiation effects
radionuclide imaging
secretion
surgery
transplantation
ultrastructure
ultrasonography
virology
Record Number:
5431
Unique Identifier:
D005321
Occurrence in VHL
:
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