Weibliche Genitalorgane

Schröder, Robert

doi:10.1007/978-3-642-48021-8_2

Cited by 28 publications

(2 citation statements)

References 275 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…1956;Watzka, 1957;H arrison, 1962;König, 1965); die Frage, ob diese Zellen jedoch ausserdem trophische Funktionen für die Follikclepithelien zu erfüllen haben, ist gänzlich in den Hintergrund getreten, ln der Literatur der letzten 40 Jahre wird darauf nicht mehr eingegangen [Schröder, 1930;Watzka, 1957;Harrison. 1962: Bargman, 1967: Bjersing, 1967a, ebensowenig auf die Tatsache, dass die Zellen der Theca interna oft einen recht unterschiedlichen Bau aufweisen, d.h. in Form und Grösse differieren [Schottlaender, 1891;C lark, 1898;Rabl, 1899;Corner, 1919/20], In dieser Arbeit soll daher der Frage nachgegangen werden, inwieweit diese Formund Grössenunterschiede mit funktionell unterschiedlichen Aufgaben der Theca interna korreliert werden können.…”

Section: Schaarunclassified

“…Doch suchen alle diese Autoren nach der Bedeutung und Verwendung dieser Zellarten der Theca interna für den Aufbau des Corpus luteum und nicht nach ihrer Aufgabe und Funktion in Tertiärfollikeln selbst, ln der neueren Literatur wird die Schichtung der Theca interna überhaupt nicht mehr erwähnt. [Schröder, 1930: Watzka, 1957: Harrison, 1962König. 1965: Barg-MANN, 1967 In allen von uns untersuchten Ovarien findet sich eine Vielzahl von Tertiärfollikeln, die eine deutliche Dreischichtung der Theca interna be sitzen.…”

Section: Besprechung Der Befunde Und Disskusionunclassified

See 1 more Smart Citation

Funktionelle Morphologie der Theca interna im Bläschenfollikel des menschlichen Ovars

Schaar¹

1976

Cells Tissues Organs

View full text Add to dashboard Cite

A study of histological serial sections of human ovaries and histochemical reactions established that several cell types differentiate in the theca interna during the formation and development of tertiary follicles (2nd growth period). This leads, in turn, to triple-layering of the theca interna in follicles of the 2nd resting period. The inner thecal layer consists of fusiform cells from the basement membrane, which are apposed to the membrana granulosa and show a strong positive reaction to alkaline phosphatases. A tropic function for the follicular epithelium must be assigned to this layer. The middle layer consists of epitheloid thecal cells, which show a strong positive reaction to 3β-ol-steroid hydrogenase. These represent the estrogen glands of the follicle. The outer layer of the theca interna, whose transition to the theca externa is indistinct, also has fusiform cells, which are available as reserve material for the differentiation of further epitheloid thecal cells to pre-ovulatory follicles in later periods of development.

show abstract

Section: Schaarunclassified

Section: Besprechung Der Befunde Und Disskusionunclassified

Funktionelle Morphologie der Theca interna im Bläschenfollikel des menschlichen Ovars

Schaar¹

1976

Cells Tissues Organs

View full text Add to dashboard Cite

show abstract

The development of the pharyngeal tonsil (cat): Cell types

Kingsbury

1932

Am. J. Anat.

View full text Add to dashboard Cite

TWO TEXT FIQUBES AND FIVE PLATES (THIRTY-SIX FIQURES)The ring of tonsillar lymphatic tissue (of Waldeyer) marking a transitional region in the pharynx is commonly thought of as possessing a direct functional significance for the protection of the lower regions of the respiratory passageways. Statistical reports1 upon the results of removal, of the palatine tonsil particularly, produce little evidence of an adaptative value of the tonsils for bodily defense. The tonsillar zone is, however, also a transitional zone in an anatomical sense, and developmentally marks a region rather intermediate in its growth relations between the expansion of head material forward and the visceral differentiation caudally. The development of the palatine tonsil was examined (Kingsbury and Rogers, '27), to ascertain in how far its development might be explained as an expression of the growth mechanics of the head. The pharyngeal tonsil, the dorsal member of the 'ring,' possesses a somewhat simpler location. The presence of a bursa pharyngea in man and certain mammals strongly suggested growth-mechanical factors as primarily responsible for its development. Recently I published the results of a study of the development of the pharyngeal tonsil in the cat in which the growth-mechanical aspect was

show abstract

Development of the human ovary from birth to sexual maturity

Simkins

1932

Am. J. Anat.

View full text Add to dashboard Cite

The present study of the maturation of the human ovary is the outgrowth of a former paper (Simkins, '28) in which the development of the gonads was traced to the time of birth. There shall be a slight overlapping of this study and the former one, because birth itself has no discernible effect upon gonogenesis, or even upon the ovary as a whole. The important events in the history of the human ovary are: first, the origin of the ventromedian thickening on the mesonephric body in embryos of 7 mm. Secondly, the differentiation of the indifferent gonad into a testis or an ovary during the second month. Thirdly, the cessation of mitotic division of the gonocytes during the sixth fetal month. And, fourthly, the growth of the ovary from the sixth fetal month to sexual maturity, about the fourteenth year. The present paper shall be limited to that fourth phase. MATERIALThe series of gonads upon which this study is based is made up of sixty ovaries from the fifth fetal month to birth; ten from birth to the end of the first year, two between birth and the first year, two at two years, one at three years, one at seven years, two at eight years, two at nine, one at thirteen, and three at fourteen. (A partial list, with measurements, is given in table 1.) 'Aided by a grant from the National Besearch Council. 465T H E AMERICAN JOURNAL OF ANATOMY. VOL. 51, XO. 2

show abstract

Weibliche Genitalorgane

Cited by 28 publications

References 275 publications

Funktionelle Morphologie der Theca interna im Bläschenfollikel des menschlichen Ovars

Funktionelle Morphologie der Theca interna im Bläschenfollikel des menschlichen Ovars

The development of the pharyngeal tonsil (cat): Cell types

Development of the human ovary from birth to sexual maturity

Contact Info

Product

Resources

About