File:Mouse-fertilization 02.jpg: Difference between revisions

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Spermatozoa Swims within the Previtelline space (PVS) Prior to Fertilization

(A) Typical morphology of a MII oocyte with the meiotic chromosomes located in one “shoulder.”

(B and C) Sequential DIC (differential interference contrast) images of embryos during in vitro fertilization.

Sperm penetrates the ZP.
Sperm swims around the PVS.
Sperm swims around the PVS.
Sperm hits the first polar body (1pb).
Sperm binds the oocyte membrane.
2pb extrudes and the fertilization cone forms.

White arrowheads indicate the sperm.
Red arrowheads the first polar body (1pb).
Yellow arrowheads the collapsing (B) or rotating (C) first polar body (1pb).
White asterisks mark the fertilization cone.
Red asterisks mark the second polar body (2pb).
Scale bars in (A) and (B1) represent 20 microns.

Links: File:Mouse-fertilization 01.jpg | Movie - Fertilization in mouse | Cell Division - Mitosis | Zygote

Reference

<pubmed>16620153</pubmed>| PLoS Biol

Copyright

© 2006 Motosugi et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Received: October 13, 2005; Accepted: February 24, 2006; Published: April 25, 2006

Figure 3. Journal.pbio.0040135.g003.jpg doi:10.1371/journal.pbio.0040135.g003

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current	18:50, 5 April 2010		1,342 × 691 (118 KB)	S8600021 (talk \| contribs)	Sperm Swims Around within the PVS Prior to Fertilization (A) Typical morphology of a MII oocyte with the meiotic chromosomes located in one “shoulder.” (B and C) Sequential DIC (differential interference contrast) images of embryos during in vitro fe

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Fertilization

@@ Line 9: / Line 9: @@
 # Sperm swims around the PVS.
 # Sperm swims around the PVS.
-# Sperm hits the 1pb.
+# Sperm hits the first polar body (1pb).
 # Sperm binds the oocyte membrane.
 # 2pb extrudes and the fertilization cone forms.
 |
-*  White arrowheads indicate the sperm, red arrowheads the 1pb, and yellow arrowheads the collapsing (B) or rotating (C) 1pb.
+* White arrowheads indicate the sperm.
-* White and red asterisks mark the fertilization cone and the 2pb, respectively. Scale bars in (A) and (B1) represent 20 microns.
+* Red arrowheads the first polar body (1pb).
+* Yellow arrowheads the collapsing (B) or rotating (C) first polar body (1pb).
+* White asterisks mark the fertilization cone.
+* Red asterisks mark the second polar body (2pb).
+* Scale bars in (A) and (B1) represent 20 microns.
 |}
-:'''Links''': [[:File:Mouse-fertilization 01.jpg]] | [[Movie_-_Fertilization_01|Movie - Fertilization in mouse]]
+:'''Links''': [[:File:Mouse-fertilization 01.jpg]] | [[Movie_-_Fertilization_01|Movie - Fertilization in mouse]] | [[Cell Division - Mitosis]] | [[Zygote]]
@@ Line 32: / Line 36: @@
-[[Category:Fertilization]] [[Category:Mouse]] [[Category:Oocyte]] [[Category:Spermatozoa]]
+[[Category:Fertilization]] [[Category:Mouse]] [[Category:Oocyte]] [[Category:Spermatozoa]][[Category:Polar Body]]