. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Spermatozoa in the interior of the cysts (Toipedo Narce). ings of the body seem to be still wanting at this stage, or, at least, not to be perfectly developed. If the number of spermatozoa is only small in one cyst, they never group together into a bundle, whilst this is con- stantly occurring in the reverse case (fig- 352.). Fig. Bundle of Spermatozoa in a cyst (Torpedo Narce). We will not venture to decide, however, whe- ther this difference is entirely attributable to the greater number of the cells of develope-
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Spermatozoa in the interior of the cysts (Toipedo Narce). ings of the body seem to be still wanting at this stage, or, at least, not to be perfectly developed. If the number of spermatozoa is only small in one cyst, they never group together into a bundle, whilst this is con- stantly occurring in the reverse case (fig- 352.). Fig. Bundle of Spermatozoa in a cyst (Torpedo Narce). We will not venture to decide, however, whe- ther this difference is entirely attributable to the greater number of the cells of develope- ment ; and we are the less inclined to do so, as we have already seen, when investigating the spermatozoa of birds, that, even with an equal number of the formations alluded to, the grouping of the spermatozoa in the in- terior of the cyst may be different. This much, however, is certain, that the num- ber of the enclosed cells is not entirely with- out influence. The fact of the fascicles of spermatozoa always coinciding in one cyst with a greater number of the cells of develope- ment, seems, at all events, to favour this con- jecture. Previous to the period of procreation, we also find, in the testicles of the osseous fishes, that the cells of developement are enclosed in the interior of larger cells (j%. 353.);. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Todd, Robert Bentley, 1809-1860. London, Sherwood, Gilbert, and Piper
Size: 1364px × 1831px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, booksubjectanatomy, booksubjectphysiology, booksubjectzoology
