A series of six high power LMs of sections through a stage 1a embryo in vitro showing telophase II of the second polar body, 3 hours post-insemination.
c) Part of the sperm head and midpiece (arrow) are evident (original magnification x460).
From: Lopata et al., 1980. Reproduced with permission of the American Society for Reproductive Medicine.
Keywords: second polar body, sperm head, sperm midpiece, stage 1a embryo, telophase II
Source: The Virtual Human Embryo.