micropyle
Quick Summary
The term "micropyle" has two primary meanings. In seed plants, it refers to a small opening in the ovule's integument. In the context of insect anatomy, the micropyle is a crucial part of the eggshell, or chorion. This tiny canal allows sperm to enter the egg for fertilization. In most insects, the egg passes down the oviduct, and as it nears the point of being laid, the micropyles align with the spermatheca (sperm storage organ), enabling fertilization to occur.123
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insectReproductive system…chorion is also pierced by micropyles, fine canals that permit entry of one or more spermatozoa for fertilization. As the egg passes down the oviduct before egg laying, the micropyles come to lie opposite the duct of the spermatheca; at this stage fertilization occurs. Eggs must be waterproof to prevent…
Read More…chorion is also pierced by micropyles, fine canals that permit entry of one or more spermatozoa for fertilization. As the egg passes down the oviduct before egg laying, the micropyles come to lie opposite the duct of the spermatheca; at this stage fertilization occurs. Eggs must be waterproof to prevent…
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LepidopteraThe egg…system of tiny canals (micropyle) permits the entrance of sperm. In some groups the micropyle is at the side, whereas in others it is on the surface away from the substrate. The egg passes along the individual oviduct and through the common oviduct to the vagina. Here, just before…
Read More…system of tiny canals (micropyle) permits the entrance of sperm. In some groups the micropyle is at the side, whereas in others it is on the surface away from the substrate. The egg passes along the individual oviduct and through the common oviduct to the vagina. Here, just before…
Read More