Bibliographies thématiques / Apparato genitale

Littérature scientifique sur le sujet « Apparato genitale »

Auteur : Grafiati
Publié le 10 mars 2023
Mis à jour le 11 mars 2023

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Articles de revues sur le sujet "Apparato genitale"

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Julanova, N., M. Julanov, S. Khizat, V. Stefanik, E. Kostyshyn et A. Mautenbayev. « The prevention of infertility of mares ». Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 20, no 92 (10 décembre 2018) : 178–81. http://dx.doi.org/10.32718/nvlvet9237.

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In the article it is noted that when the age of physiological maturity is reached, most of mares do not go hunting because of genital infantilism. The authors' studies showed that in the group where the repair filly had a systematic communication with the vasectomized stallions at 36 months of age, the reproductive apparatus was well developed, there were no signs of genital infantilism. All mares were found at the age of 36–37 months, and they became foal, at the mares of the control group at the indicated age the sexual cycles did not appear regularly, signs of genital infantilism were noted. The authors note that the vasectomized stallion provides, normal development of the reproductive sexual system of the repair mares, the full formation and manifestation of sexual cycles. The use of vasectomized stallions allows for an early effective prevention of genital infantilism and infertility in repair mares. Dosed communication of fillies with vasectomized colts and sterile coitus during sexual development promoted the physiological development of the genitals and the full manifestation of the sexual cycle.
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Gorochov, A. V. « Evolution and taxonomic significance of the copulatory apparatus in Ensifera (Orthoptera). Part 2 : Male genitalia in Grylloidea ». Zoosystematica Rossica 24, no 1 (25 juin 2015) : 31–41. http://dx.doi.org/10.31610/zsr/2015.24.1.31.

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In the superfamily Grylloidea, the main trends in the evolution of the copulatory apparatus were probably connected with the transformation of simple membranous (hagloid) genitalia, characteristic of ancient groups of Ensifera, into a complicated organ with highly specialized sclerites for fixation of the female during copulation. This evolutionary process was probably accompanied by partial reduction and disappearance of paraproctal hooks or other external abdominal processes which may have been used by these ancient groups for female fixation. Sclerites in the male genitalia of Grylloidea appeared independently not less than four times: in Gryllotalpidae, Myrmecophilidae, Gryllidae and Mogoplistidae. This hypothesis, proposed by Gorochov in 1984, was one of the reasons for division of the recent Grylloidea into four families. Each of the first three families acquired sclerites in the male genitalia once, whereas Mogoplistidae possibly acquired them more than once: male genitalia of the tribe Mogoplistini are of the hagloid type, membranous; in most genera of Arachnocephalini (Mogoplistinae), in Pseudomogoplistes (Mogoplistinae) and in Malgasiinae, male genitalia have three types of sclerites which could have also appeared independently. Moreover, many sclerites of the male genitalia in Grylloidea are formed independently and have significant convergent similarity; this is why the nomenclature of male genital structures based partly on their function and position but not exclusively on their homology is simpler and much more suitable for descriptions and morphological investigations. This nomenclature is considered here.
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PONOMARENKO, MARGARITA G. « A contribution to knowledge of some main trends in evolutionary transformations of the male genitalia in superorder Amphiesmenoptera (Insecta, Trichoptera + Lepidoptera) ». Zoosymposia 10, no 1 (9 août 2016) : 341–56. http://dx.doi.org/10.11646/zoosymposia.10.1.32.

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The general trends of evolutionary transformations in the male copulatory apparatus of the lower ditrysian Lepidoptera, family Gelechiidae, on the base of functional morphological analysis are similar to those in the order Trichoptera. Evolution of the genitalia in both groups was directed to improvement of efficiency of mating mechanisms. It is found that one of the general trends in trichopterans, reduced of gonopods, corresponds to the main direction of valvae transformation in lower ditrysian moths Gelechiidae. These structures, being of importance in grasping the female in other groups of Lepidoptera, lost this function in some genera and they completely disappeared in most advanced groups of gelechiid moths. That phenomenon is associated with transformations of other structures in copulatory apparatus, which functionally compensate for the lack of valvae. Such functional analogues are found in the course of comparative morphological analysis of the male genitalia in both groups. Similar changes and similar traits of the genital appendages in both groups, trichopterans and lower ditrysian lepidopterans, can be considered as evidence of parallel evolution. The possible parallelisms as indicators of common evolutionary trends in transformation of copulatory apparatus within the two lineages, Trichoptera and Lepidoptera, having a common ancestor, are discussed.
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Margraf, A., CLS Costa-Ayub, MA Okada, JR Gomes, CF Ortolani-Machado et MAM Soares. « Development of Loxosceles intermedia Mello-Leitão (1934) (Araneae, Sicariidae) genital tract ». Brazilian Journal of Biology 71, no 3 (août 2011) : 747–54. http://dx.doi.org/10.1590/s1519-69842011000400021.

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We examined the post-embryonic development of the male and female genital apparatus of the brown spider, Loxosceles intermedia. The development of the genital apparatus for both sexes begins with the appearance of inner structures. In the male genital apparatus, formation of the testes occurs first, followed by differentiation of the duct, ampulla and vas deferens, and finally the formation of the genital opening and differentiation of the copulatory organ (secondary sexual characteristic). Similarly, the development of the female genital apparatus begins with the formation of the ovaries, followed by the appearance of oocytes in vitellogenesis, then the development of oviducts and uterus internus and, finally, the spermatheca. These data may be very important in further comparative studies on the development of the reproductive system of spiders.
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PRZYSTAŁKOWSKA, ANNA. « A new species of Apisa Walker, 1855 (Lepidoptera : Erebidae : Arctiinae) from Uganda with remarks on the apomorphies of the genus ». Zootaxa 5128, no 1 (19 avril 2022) : 91–106. http://dx.doi.org/10.11646/zootaxa.5128.1.5.

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A new species of Apisa Walker, 1855 from Uganda (East Africa) and Gabon (Central Africa) is described according to morphological characters and DNA barcode information. A diagnosis, detailed description, distribution, and illustrations of specimens and the male genitalia are provided. Diagnostic characters are found in wing shape, strongly marked wing venation and details of the male genital apparatus. The DNA barcode sequences of twelve specimens of A. atrovenosa sp. n. are compared with other members of Apisa. Diagnostic characters of the genus are summarised and discussed for the first time with an emphasis on the lack of arolium as the obvious autapomorphy. This character is shown by SEM photographs.
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V. G, Cherenkov. « Displasia and Cancer of the Vulva. Finding Ways to Improve the Effectiveness and Quality of Treatment Results ». Obstetrics Gynecology and Reproductive Sciences 3, no 2 (15 novembre 2019) : 01–04. http://dx.doi.org/10.31579/2578-8965/024.

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Cancer of the external genitals is up to 8 % in the overall structure of the incidence of malignant neoplasms of female genital organs. Under our observation there were 92 patients with vulvar dystrophy and suspected cancer. The effectiveness of treatment of vulvar dystrophy (VIN I-II degree) by the method of photodynamic therapy (PDT) 45.8±4.7%. However, dysplasia II - III degree, sclerotic changes with the formation of pronounced horn scales prevents the full PDT and recurrence of the disease. Reconstructive plastic surgery was performed using cryoapplication and « Harmonic» apparatus to reduce blood loss and duration of lymphorrhoea in the postoperative period. The use of new reconstructive plastic surgery, including with the use of abdominal skin and fascial flap combined with vascularized lower segments of the rectus muscles), have helped to reduce complications, improve cosmetic effect (patent for invention № 2580665 from 11.11.14).
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Skorik, K. O. « ANATOMICAL STRUCTURE OF INTERNAL GENITAL ORGANS ZAANEN BREE ». Animal Breeding and Genetics 53 (27 avril 2017) : 266–72. http://dx.doi.org/10.31073/abg.53.37.

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Goal. Goat breeding is a promising branch of animal husbandry, which is rapidly developing. The scientific literature has little information about the essential features and differences in the structure of the genital apparatus of goats. With the increase in the number of livestock and selection work in goat breeding, knowledge of the characteristics of the reproductive system is of great importance. Due to lack of knowledge of the structure of the reproductive organs of small cattle, the effectiveness of artificial insemination decreases and inefficient sperm of producers is used, since the complex structure of the cervix of the goat is an obstacle in the artificial introduction of sperm. Therefore, considering the need for further introduction of the method of artificial insemination into practice of goat breeding, the study of the peculiarities of the structure of the internal genital organs of goats is timely and necessary. Materials and methods.The study of anatomical features of the structure of the internal genital organs of goats was carried out on animals of the Zaanen breed, imported into the village. Galaiki Tarashchansky district of the Kiev region from Latvia. The material for study was the genitals obtained from goats aged 6-7 years. After the slaughter and bleeding, the genitals were separated into goats. They were then placed in an enameled cuvette and measured with a measuring tape, ruler and caliper. The linear dimensions of the ovaries, the diameter and length of the uterine horns according to the large curvature, the length of the uterine body, the length and diameter of the cervix, the number and structural features of the folds of its mucous membrane, the amount of caruncle, their height and diameter were measured. As mentioned earlier, the development of anatomical and physiological basis for artificial insemination of small ruminant animals was carried out mainly on sheep. Therefore, we compared the size of the ovaries, oviducts and uterus in goats of the Zaanen breed of Latvian selection and, according to the literature, the results of studies of similar sheep organs were analyzed. As a result of the studies of the morphological parameters of the genitalia of the goats, the following data were obtained: the mass of the left ovary – 0,6 ± 0,06 g, the right – 1,1 ± 0,04 g: the length of the left ovary – 2,0 ± 0,06 Cm, the length of the right – 2,3 ± 0,04 cm. The length of the left oviduct was – 14,2 ± 0,16 cm, and the right – 14,4 ± 0,15 cm. Accordingly, the length of the left horn of the uterus was – 13,7 ± 0,63 cm, the right – 12.2 ± 0,75 cm. The diameter of the left horn of the uterus is – 2.3 ± 0,07 cm, the right horn of the uterus is – 2,8 ± 0,08 cm. The morphological parameters of the unpaired genitals of goats were as follows: The length of the uterus body was – 1,8 ± 0,15 cm, the cervix was – 5,9 ± 0,29 cm, the cervix diameter was – 1,8 ± 0,08 cm; the number of folds in the cervix is – 4,7 ± 0,50. The height of the caruncle is – 0,5 ± 0,06 cm, their diameter is – 0,7 ± 0,10 cm, the amount of caruncle is – 96,5 ± 1,70, the area of the caruncle is on average – 0,4 ± 0,10 cm2. Conclusions. As a result of the carried out researches the anatomical and morphometric characteristics of internal sexual organs of goats are given. These data make it possible to expand and supplement knowledge on the morphology of the reproductive system of farm animals, which must be taken into account in artificial insemination of goats. The data obtained by us are somewhat different from the results of the studies of other authors, but do not contradict them.
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Wu, Min. « A taxonomic note on the helicoid land snail genus Traumatophora (Eupulmonata, Camaenidae) ». ZooKeys 835 (5 avril 2019) : 139–52. http://dx.doi.org/10.3897/zookeys.835.32697.

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Traumatophoratriscalpta(Martens, 1875) is reported for the first time from the Tianmushan Mountains, Zhejiang Province, and its morpho-anatomy is described based on this new material. The genusTraumatophorais redefined on the basis of both shell and genital anatomy of its type species. The presence of the dart apparatus suggests this genus belongs to the subfamily Bradybaeninae rather than to the Camaeninae. This genus is distinguished from all other Chinese bradybaenine genera by the combination of the following key morphological characteristics: embryonic shell smooth, palatal teeth present, dart sac tiny with rounded proximal accessory sac that opens into a dart sac chamber, mucous glands well developed, entering an accessory sac through a papilla, epiphallic papilla absent, flagellum present. A comparison is also presented of Chinese bradybaenine genera with known terminal genitalia.
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Duggal, C., et H. Kaur. « SEM studies on the copulatory apparatus of male Oesophagostomum columbianum ». Helminthologia 43, no 1 (1 mars 2006) : 3–5. http://dx.doi.org/10.2478/s11687-006-0001-5.

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AbstractSEM studies on the cloacal opening of Oesophagostomum columbianum indicate that it is located on a raised conical structure called the “genital cone”. The genital cone is provided with a ventral lip and a pair of subdorsal gential appendages. The vental lip is a triangular structure having a single papilla on it and the genital appendages are covered with wrinkled cuticle with a nerve process projecting to the exterior in center. The bursa is supported by muscular rays which end up as knob-like sessile genital papillae. The inner surface of the bursa is porous. Spicules are two, equal, each provided with an ala which decreases in height distally and end up much prior to the spicular tip.
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Peretti, Vincenzo, Katiuska Satué, Francesca Ciotola, Santo Cristarella, Massimo De Majo, Vito Biondi, Emanuele D’Anza, Sara Albarella et Marco Quartuccio. « An Unusual Case of Testicular Disorder in Sex Development of Arabian Mare (64,XX SRY-Negative) ». Animals 10, no 11 (25 octobre 2020) : 1963. http://dx.doi.org/10.3390/ani10111963.

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A 3-year-old Arabian mare underwent medical examinations due to the presence of abnormalities of the reproductive apparatus and stallion behavior (nervous temperament, aggressiveness, masculine attitude). During the clinical visit, an anovulvar distance shorter than normal was observed; moreover, vulvar lips were dorsally fused except for the lower neckline, showing a blind ending from which a penis-like structure protruded. The ultrasound examination revealed the presence of a cervix and corpus of a uterus, hypoplastic uterine horns, and small gonads with an echogenicity similar to a testis. Blood testosterone levels ranged from 0.4 to 0.6 ng/mL. Cytogenetic analysis showed a normal female karyotype (2n = 64,XX), while PCR amplification of SRY and ZFY genes revealed the absence of a Y chromosome. At necroscopic examination, internal genitalia arising from the genital ridge in the form of masculine type structures were found, while those deriving from the Mullerian ducts were of feminine type. In addition, an infundibular portion of the salpinx at the cranial pole of the gonads was found. This is the first case in equine species of DSD 2n = 64,XX SRY-negative, with the simultaneous presence of male (hypoplastic testicles, epididymal portions, and a penis-like structure) and female (cervix, horn and body of a hypoplastic uterus) genital structures.
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Thèses sur le sujet "Apparato genitale"

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VICHI, DEBORA. « I SIALODERIVATI NEL CORSO DELL’INVECCHIAMENTO IN ALCUNI ORGANI NELL’APPARATO GENITALE UMANO ». Doctoral thesis, 2008. http://hdl.handle.net/2158/599048.

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Livres sur le sujet "Apparato genitale"

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Günther, Schlag, Wallwiener D et Melchoir Hansjörg, dir. Gynecology and obstetrics. Berlin : Springer-Verlag, 1994.

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MCQ's for MRCOG Part 2 (MRCOG Study Guides). Churchill Livingstone, 1998.

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Melchior, H., Günther Schlag et D. Wallwiener. Gynecology and Obstetrics Urology. Springer London, Limited, 2013.

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Chapitres de livres sur le sujet "Apparato genitale"

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De Ritis, R., F. Di Pietto et Ciro Anatrella. « Utero, ovaie e legamenti dell&apparato genitale femminile ». Dans Anatomia TC multidetettore — Body, 197–99. Milano : Springer Milan, 2010. http://dx.doi.org/10.1007/978-88-470-1688-0_32.

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Cicero, Arrigo F. G., et Alessandro Colletti. « Nutraceuticals Active on Genital Apparatus ». Dans Handbook of Nutraceuticals for Clinical Use, 139–51. Cham : Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73642-6_11.

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Dondero, Franco, et Francesco Lombardo. « Infections/inflammation of the genital tract ». Dans Oxford Textbook of Endocrinology and Diabetes, 1426–28. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199235292.003.9096.

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Sexually-transmitted diseases (STDs) are the primary cause of infections of the genital apparatus, and are an important cause of morbidity worldwide. These diseases diminished after the advent of antibiotics, but in the 1970s new sexual behaviour and use of non-protective contraceptive methods brought about a significant increase in genito-urinary infections, especially in young adults of fertile age. New diseases appeared alongside the classic infections syphilis, gonorrhoea, soft ulcers, venereal lymphogranuloma, and inguinal granuloma, and increased continuously in industrialised nations. Previously unknown pathogens such as Chlamydia trachomatis, genital Mycoplasma, and others came to the attention of andrologists, particularly because of often irreversible complications in the sexual and reproductive realm (1).
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Spirlet, C., P. Grosjean et M. Jangoux. « Differentiation of the genital apparatus in a juvenile echinoid (Paracentrotus lividus) ». Dans Echinoderms through Time, 881–86. CRC Press, 2020. http://dx.doi.org/10.1201/9781003077831-206.

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