The Seminal Vesicles and Their Seasonal Changes in the Indian Catfish, Heteropneustes

Copeia ◽  
1958 ◽  
Vol 1958 (4) ◽  
pp. 289 ◽  
Author(s):  
B. I. Sundararaj
Keyword(s):  
Seasonal Changes ◽  
Seminal Vesicles ◽  
Indian Catfish

Seasonal changes in the accessory sex glands and gonaducts of male mink

1973 ◽  
Vol 51 (11) ◽  
pp. 1125-1132 ◽  
Author(s):  
P. K. Basrur ◽  
A. S. Ramos
Keyword(s):  
Seasonal Changes ◽  
Prostate Gland ◽  
Functional Anatomy ◽  
Interstitial Cells ◽  
Seminal Vesicles ◽  
Developmental Changes ◽  
Endocrine Activity ◽  
Accessory Sex Glands

The anatomic and developmental changes in the reproductive ducts and accessory sex glands of male mink have been examined at regular intervals during the year. The accessory sex glands noted in mink included a well-developed prostate gland and distinct ampullae while seminal vesicles and bulbourethral glands were absent. The cyclical changes noted in the gross morphology and histology of the duel system, the ampullae, and prostate gland of mink appeared 10 parallel the seasonal changes noted in the testes. It is postulated that the functional anatomy of the gonaducts and accessory sex glands of the adult mink may be causally related to the seasonal changes in the endocrine activity of the interstitial cells of the testis.

scholarly journals Reproduction of the Bank Vole ( Evotomys glareolus ), Schreber). II - Seasonal changes in the reproductive organs of the male

1936 ◽  
Vol 226 (531) ◽  
pp. 99-120 ◽  
Keyword(s):  
Body Weight ◽  
Bank Vole ◽  
Seasonal Changes ◽  
Preceding Paper ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
Adult Males ◽  
Breeding Seasons

The present paper deals with the male Evotomys and is concerned with two main problems; the duration of the breeding and the non-breeding seasons, and the structure and growth of the reproductive organs. It is, in consequence, complementary to the preceding paper on the female. The only previous work we are aware of on the male of the British species is that of Baker (1930) on a series of 359 males trapped near Oxford over a period of three consecutive years. Baker, aking the arbitrary criterion of 14 gm body-weight or over, found that 260 of these were adult. If spermatozoa were abundant in the tail of the epididymis, as determined from teased preparations, and also if the seminal vesicles were found to weigh 100 mg or over, the animal was said to be fecund. Baker found that none of the 13 adult males obtained during the winter, October to February inclusive, of 1925-26 was fecund, while 16% of the 45 obtained in the following winter and 52% of the 27 obtained in the winter of 1927-28 were fecund. Thus he concluded that in one of the three winters concerned there was complete sterility.

Electron Microscopic Study of the Epithelium of the Seminal Vesicle of Aging Rats

1974 ◽  
Vol 32 ◽  
pp. 138-139
Author(s):  
V. F. Allison ◽  
G. C. Fink ◽  
G. W. Cearley
Keyword(s):  
Cell Growth ◽  
Epithelial Cell ◽  
Epithelial Cells ◽  
Seminal Vesicle ◽  
Seminal Vesicles ◽  
Epithelial Layer ◽  
Epithelial Hyperplasia ◽  
Electron Microscopic ◽  
Aging Rats ◽  
Pseudostratified Epithelium

It is well known that epithelial hyperplasia (benign hypertrophy) is common in the aging prostate of dogs and man. In contrast, little evidence is available for abnormal epithelial cell growth in seminal vesicles of aging animals. Recently, enlarged seminal vesicles were reported in senescent mice, however, that enlargement resulted from increased storage of secretion in the lumen and occurred concomitant to epithelial hypoplasia in that species.The present study is concerned with electron microscopic observations of changes occurring in the pseudostratified epithelium of the seminal vescles of aging rats. Special attention is given to certain non-epithelial cells which have entered the epithelial layer.

Spreading the Word: Seasonal Changes Mean New Opportunities for Media Coverage

ASHA Leader ◽  
2013 ◽  
Vol 18 (7) ◽  
Keyword(s):  
Media Coverage ◽  
Seasonal Changes ◽  
Swimming Pools

Summer kicking into high gear conjures images of swimming pools and barbeques. But before you book your beach house for the weekend, think about what the changing seasons can mean for you professionally.

Seasonal changes in a ultraviolet structural colour signal in blue tits, Parus caeruleus

2002 ◽  
Vol 76 (2) ◽  
pp. 237-245 ◽  
Author(s):  
JONAS ORNBORG ◽  
STAFFAN ANDERSSON ◽  
SIMON C. GRIFFITH ◽  
BEN C. SHELDON
Keyword(s):  
Seasonal Changes ◽  
Parus Caeruleus ◽  
Structural Colour ◽  
Blue Tits ◽  
Colour Signal

Seasonal changes in nitrogen fractions of Pachysandra terminalis, a forest evergreen chamaephyte

1990 ◽  
Vol 79 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Fumio Yoshie ◽  
Hirohito Arai ◽  
Hideaki Nakashima ◽  
Shoichi Kawano
Keyword(s):  
Seasonal Changes ◽  
Nitrogen Fractions
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