. The biochemistry of semen. Semen; Spermatozoa; Genitalia, Male; Semen. The Two Components of Semen 13 the galea capitis can be conveniently followed by the India-ink staining technique of Blom (Fig. 3) whose studies indicate that the phenomenon occurs most frequently in degenerating spermatozoa, for example, in ejaculates obtained after long periods of abstinence. When stained by the Gomori technique, the galea capitis or at least the region near the tip of the head, shows a positive reaction for acid phosphatase. On the whole, however, phosphatase activity, 'acid' and 'alkaline' alike, is m
. The biochemistry of semen. Semen; Spermatozoa; Genitalia, Male; Semen. The Two Components of Semen 13 the galea capitis can be conveniently followed by the India-ink staining technique of Blom (Fig. 3) whose studies indicate that the phenomenon occurs most frequently in degenerating spermatozoa, for example, in ejaculates obtained after long periods of abstinence. When stained by the Gomori technique, the galea capitis or at least the region near the tip of the head, shows a positive reaction for acid phosphatase. On the whole, however, phosphatase activity, 'acid' and 'alkaline' alike, is much more intense in the seminal plasma than in the spermatozoa. Moreover, as it is rather difficult to. Fig. 3. Schematic representation of the head of a bull spermatozoon before and after detachment of the galea capitis {India-ink method). a, pars posterior, b, pars intermedia, c, pars anterior with the galea capitis in situ, q, the 'bare' pars anterior after detachment of the galea, Cg, galea capitis detached from the head. (Blom, 1945) remove from the spermatozoa, even by exhaustive washing, all adhering traces of seminal plasma, the possibility of contamination with plasma phosphatase must be taken into account when con- sidering the occurrence of phosphatase in the spermatozoa themselves. The narrow region which connects the sperm-head with the middle-piece is known as the neck (or neck-piece), which is the most vulnerable and fragile part of the spermatozoon. The entire neck region is bounded, however, by a membrane which continues over the head and middle-piece. In the neck, close to the base of the sperm nucleus, is situated the centrosome which marks the beginning of the 'axial filament', the central core of both the middle-piece and tail. The axial filament consists of a number of fine long fibrils which. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illus
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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectgenitaliamale
