. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. INTERSTITIAL CELLS OF THE CHICKEN TESTIS. 37 per cent., 13 per cent., 31 per cent, and 54 per cent, of the dark-staining nuclei which have the long shape of typical connec- tive tissue nuclei. It seems then that staining capacity of nuclei is not a satisfactory method of distinguishing interstitial cells. There is one more point in the frequent descriptions of intersti- tial cells to be considered. Is there any evidence that the cells of the interstitial tissue are secreting fat? We have already found fat present in testes o
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. INTERSTITIAL CELLS OF THE CHICKEN TESTIS. 37 per cent., 13 per cent., 31 per cent, and 54 per cent, of the dark-staining nuclei which have the long shape of typical connec- tive tissue nuclei. It seems then that staining capacity of nuclei is not a satisfactory method of distinguishing interstitial cells. There is one more point in the frequent descriptions of intersti- tial cells to be considered. Is there any evidence that the cells of the interstitial tissue are secreting fat? We have already found fat present in testes of just-hatched chicks, but decided that it probably was not a secretion. Fat is also present in. FIG. 8. Same as Fig. 7, but from cf1 2323. S = spermatozoa. X 1,000. the older testes, and is represented by the black dots in the drawings. Comparison of Figs. 5 and 7 with Figs. 6 and 8 will show that the fat is inside of the tubules as well as in the intersti- tial tissue. The fat globules in the interstitial tissue are not arranged like secretory granules in the cytoplasm of cells. They are mostly in long rows as though packed in spaces between con- nective tissue fibers. Figs. 5 and 7 show nearly as much fat near typical connective tissue nuclei as near the round or dark- stained nuclei of the "interstitial ; A comparison of Figs. 7 and 8 shows much fat in Fig. 7 where there are only connective tissue nuclei in the interstitial space, and no fat in Fig. 8, where there is a small group of round dark-staining nuclei. Fig. 9 shows a part of a large mass of interstitial tissue where the nuclei are mostly round. This is evidently a so-called interstitial 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Ho
Size: 1574px × 1588px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
