अभिलेखन में उद्घाटन

Noun:

कोरकरन्ध्र, आंत्रकन्दराछिद्र, ब्लास्टोपोर,

blastopore's Usage Examples:

One end of the blastopore becomes nearly closed, and an ingrowth of ectoderm takes place around it to form the stomodaeum or fore-gut and mouth.

elongated blastopore of fig.

The blastopore now closes along the middle part of its course, which coincides z s FIG.

Then the large cells recommence the process of division and sink into the hollow of the sphere, leaving an elongated groove, the blastopore, on the surface.

C, Diblastula of an Opisthobranch (Polycera) with elongated blastopore oi.

The mouth and stomodaeum form independently of the blastopore.

bl, Blastopore.

The preconchylian invagination or shell-gland is formed in the embryo behind the velum, on the surface opposite the blastopore.

Formation of archenteron and blastopore may, however, be deferred till a later stage (actinula or after).

the blastopore is now more F, Later embryo seen as a transcontracted, d; and cells, me, m, Mouth.

blastopore's Meaning':

the opening into the archenteron

Synonyms:

orifice, archenteron, porta, opening,

Antonyms:

natural object, finish, closing,