Clinical and Structural Features of Sperm Head Vacuoles in Men Included in the In Vitro Fertilization Programme
Figure 4
TEM micrographs of sperm head vacuoles of normozoospermia ((a), (c), (d), (e), and (f)) and teratozoospermia (b). (a) Nuclear indentations with membranes enclosing flocculent material (asterisk). Double membrane with molecular septa (arrow) emerging from nuclear envelope. (b) Nucleus with clear spots of noncondensed chromatin (arrow) and large area with flocculent material (asterisk). (c) Membrane whorls (MW) consisting of concentrically arranged membranes. (d) High magnification of membrane whorls of (c). (e) Membrane whorls (MW) occupying a large part of nucleus. (f) High magnification of double membranes with septal complexes (arrow) and thin membranes (arrow head). A: acrosome; N: nucleus.
