1) Opening 2) Orifice 3) Porta 4) The opening of an archenteron
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https://www.crosswordclues.com/clue/blastopore
A blastopore is an opening into the archenteron during the embryonic stages of an organism. The distinction between protostomes and deuterostomes is based on the direction in which the mouth (stoma) develops in relation to the blastopore. Protostome derives from the Greek word protostoma meaning `first mouth`(πρώτος + στόμα) whereas D.....
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http://en.wikipedia.org/wiki/Blastopore
• (n.) The pore or opening leading into the cavity of invagination, or archenteron.
Found on
http://thinkexist.com/dictionary/meaning/blastopore/
the opening by which the cavity of the gastrula, an embryonic stage in animal development, communicates with the exterior. During maturation of some ... [3 related articles]
Found on
http://www.britannica.com/eb/a-z/b/77
During gastrulation cells on the surface of the embryo move into the interior to form the mesoderm and endoderm. The opening formed by this invagination of cells is the blastopore. It is an opening from the archenteron, the primitive gut, to the exterior. In some animals this opening becomes the anus, whilst in others it closes up and the anus open...
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http://www.encyclo.co.uk/local/20973
(blas´to-por) the opening of the archenteron to the exterior of the embryo at the gastrula stage.
Found on
http://www.encyclo.co.uk/local/21001
During gastrulation cells on the surface of the embryo move into the interior to form the mesoderm and endoderm. The opening formed by this invagination of cells is the blastopore. It is an opening from the archenteron, the primitive gut, to the exterior. In some animals this opening becomes the anus, whilst in others it closes up and the anus opens at the same spot or nearby. In some animals, eg. chick, invagination occurs without a true blastopore and the site at which the cells move in, the (primitive streak), may be termed a virtual blastopore.
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http://www.encyclo.co.uk/visitor-contributions.php
Blas'to·pore noun [ Greek
blasto`s sprout + English
pore .]
(Biol.) The pore or opening leading into the cavity of invagination, or archenteron. [ See
Illust. of
Invagination .]
Balfour. Found on
http://www.encyclo.co.uk/webster/B/63
Type: Term Pronunciation: blas′tō-pōr Definitions: 1. The opening into the archenteron formed by invagination of the blastula to form a gastrula. Synonyms: protostoma, protostome
Found on
http://www.medilexicon.com/medicaldictionary.php?t=10624
[
n] - the opening into the archenteron
Found on
http://www.webdictionary.co.uk/definition.php?query=blastopore
noun the opening into the archenteron
Found on
https://www.encyclo.co.uk/local/20974
the opening of an archenteron.
Found on
https://www.infoplease.com/dictionary/blastopore
No exact match found.
