Comparative anatomy and histology of the cervix uteri in non-human primates

Hafez, E. S. E.; Jaszczak, S.

doi:10.1007/bf01730575

Cited by 48 publications

(38 citation statements)

References 17 publications

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“…The cervix is easily visualized and relatively short and straight, making dilation simple and rapid [3, 7, 36.] In comparison, macaques have a relatively long tortuous cervix which can make dilation and catheterization difficult and prolonged [36, 37.] Like women, baboons possess paired ovaries lateral to the uterus and a midline simplex muscular uterus which is easily identified on transabdominal ultrasound [31.]…”

Section: Gynecologic Proceduresmentioning

confidence: 99%

The baboon (Papio sp.) as a model for female reproduction studies

Bauer¹

2015

Contraception

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Due to their size and anatomical similarity to humans, baboons make an excellent model for reproductive studies. Baboons have a simple short cervix, muscular uterus, ovaries just lateral to the uterus, and similar vasculature to that of humans. Because of the size of the animals, instruments designed for use in women can be readily used on baboons. Noninvasive determination of phase of estrous cycle is readily made by observation of changes in perineal sexual skin turgor and color. Some advantages of use of baboons compared to other nonhuman primates is that they are non-seasonal breeders, allowing for studies to be conducted year-round, have minimal infectious disease risks to humans as they do not carry Herpes B, and have a social structure allowing for easy group formation. Baboons serve as good models for many conditions in humans and should be considered for studies investigating reproductive issues.

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Section: Gynecologic Proceduresmentioning

confidence: 99%

The baboon (Papio sp.) as a model for female reproduction studies

Bauer¹

2015

Contraception

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“…Microscopic structure of the cervices in different animal's as well as human have been mentioned by Dellmann and Eurell (1998);Banks (1993); Fawcett and Fawcett (1994) and Hafez and Jaszczak (1972). The recent study characterized the Caspian miniature horse cervix more precisely and declares the similarities/differences between Caspian horses and other animals.…”

Section: Discussionmentioning

confidence: 81%

“…Goswami and Wani (2008) suggested that the cervical mucosa in small ruminants is generally characterized by longitudinal primary fold most of which maintained continuity throughout the cervix. Hafez and Jaszczak (1972) showed that the cervical mucosa in baboon, marmoset and patas monkeys contained a large amount of clefts and tubular tunnels of variable structure, length, width, direction and degree of branching. They also found that the mucosa in macaques contained a large number of crypts with complex structure, length, width, direction and degree of branching, which were longer in exocervix, whereas, small crypts, clefts and long tunnels existed in the midcervix.…”

Section: Discussionmentioning

confidence: 99%

Histological Study of Cervix Uteri in Caspian Miniature Horse

Rezaian¹

2010

American Journal of Animal and Veterinary Sciences

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Problem statement: Uterine cervix which separates the uterus from the vagina, shows remarkable anatomical and histological differences among mammalian species. Since no cleared observations have been found in regards with the Caspian miniature horses' cervix, the aim of the present study was to supplement this missing information which could be helpful for providing a stricter basis in detecting reproductive diseases and abnormalities in this valuable species. Approach: Cervices from 4 female adult healthy Caspian miniature horses dissected immediately after death and samples of 1cm thickness from 3 regions of cervix (endocervix, midcervix and exocervix) fixed with 10% buffered formalin. Routine histological laboratory methods were used and 6 µm paraffin slides stained with hematoxylin-eosin, Periodic acid-Schiff, Masson's trichrome and verhoeff methods and studied under light microscope. Heights of primary, secondary and tertiary folds and mucosal glands measured with computer software. Results: The cervix comprised of primary, secondary and tertiary fold with Simple columnar epithelium in endocervix and midcervix and most cranial part of the exocervices and changes into the non keratinized stratified squamous and a transitional form with stratified squamous with columnar cells, near the vagina. Lamina propria and sub mucosa made of collagenous dense connective tissue with abundant arterial and venues plexus. Simple tubular glands observed at the base of secondary folds of endocervix and midcervix. The muscularis layer contained of inner circular and outer longitudinal smooth muscles. Serous layer covered the cervix from the outside. Conclusion: Our finding showed that the cervix uteri in Caspian miniature horse, like other horses and ruminants, are a collagenous structure, with tall longitudinal fold throughout the length. Secretion of mucus from the mucosal glands is less obvious than ruminant.

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“…Hernandez-Lopez et al [2008] found that among blackhanded spider monkeys, seminal fluid effectively changes vaginal chemistry, making the female reproductive tract more hospitable for sperm and therefore fertilization. As pregnancy advances, a large amount of cervical mucus blocks off the entrance to the cervix [Hafez and Jaszczak, 1972]. Fertility studies in humans have indicated that the interaction between cervical mucus and seminal fluid may be particularly important in fertilization [Schats et al, 1984; for a review, see Dixson, 1998].…”

Section: Discussionmentioning

confidence: 99%

Factors Affecting the Distribution of Copulatory Plugs in Rhesus Monkeys (Macaca mulatta) on Cayo Santiago

Danzy

Gutierrez²,

Pampush³

2009

IJFP

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Although the proximate mechanisms behind the formation of copulatory plugs are well understood, their distribution and function among primates remain largely unstudied. During a study of female rhesus macaque (Macaca mulatta) mating behaviour on Cayo Santiago, we examined the pattern of the distribution of visible copulatory plugs among females and their potential relationship to female reproductive traits and sexual skin colouration. Our results indicate that non-pregnant females were observed more frequently with visible copulatory plugs than were pregnant females. Female parity status, age and rank were unrelated to copulatory plug observation. Genital colouration components were higher among females observed with copulatory plugs. We suggest that although copulatory plugs are generally thought of in terms of male physiology, plug observation may also be affected by female reproductive status.

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Comparative anatomy and histology of the cervix uteri in non-human primates

Cited by 48 publications

References 17 publications

The baboon (Papio sp.) as a model for female reproduction studies

The baboon (Papio sp.) as a model for female reproduction studies

Histological Study of Cervix Uteri in Caspian Miniature Horse

Factors Affecting the Distribution of Copulatory Plugs in Rhesus Monkeys (Macaca mulatta) on Cayo Santiago

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