Ana Rita Lima

Universidade Federal Rural da Amazônia (UFRA), Pará, Pará, Brazil

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Publications (40)30 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: Forest destruction has progressively hampered the survival of many species, and this is why it is so important to study of the lives of primates in captivity. This study aimed to describe the morphological aspects of the female reproductive tract of Sapajus apella. We used five animals obtained from the National Primate Center, Ananindeua – PA. The ovaries were paired, compact and symmetrical and had a smooth surface. The uterine tubes were bilateral and convoluted in adult animals and straight in young individuals. The uterus was simple and located in the pelvic region. The vagina was a long structure due to the position of the uterus. The external genitalia were located in the urogenital perineum and consisted of dark pigmented labia majora and labia minora, a vaginal vestibule as long as the vagina and a well-developed clitoris. The results showed that the genitals of S. apella resemble those of other Neotropical primates.
    Anantomia Histologia Embryologia 08/2014; · 0.88 Impact Factor
  • L. C. Andrade, É. Branco, A. R. Lima
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    ABSTRACT: Saguinus niger is a primate of the family Callitrichidae, with a geographical distribution limited to northern Brazil, Guyanas, Suriname and Venezuela, where it inhabits rainforests along the coast. Three adult females from the Paragominas Bauxite Mine – PA were used, donated to the Laboratory of Animal Morphology Research (LAMR) of the Federal Rural University of Amazonia. These animals had died of natural causes. The arterial system was filled with latex, and the animals were fixed in 10% formalin. Afterwards, the abdominal aorta and its collateral branches were dissected. The arrangement of the abdominal aorta branches in this species showed a similar arrangement as domestic animals but differing in the formation of the coeliac trunk. The coeliac trunk originates from the abdominal aorta, and from this trunk, we found the hepatic, left gastric and splenic arteries, where the origin of these vessels was variable. These arteries originate from the coliac trunk or a common trunk originating from the coeliac trunk, a characteristic not described in other species. The other branches of the abdominal aorta from S. niger did not show great differences in origin when compared to other species.
    Anantomia Histologia Embryologia 02/2014; · 0.88 Impact Factor
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    ABSTRACT: The spotted paca is the second largest rodent in Brazil, where it is of great economic interest in impoverished regions in view of its prominence as a low-cost source of protein. Little is known about the morphology of the accessory genital glands of this species. Thus, we studied the position and morphology of the genitals in ten adult male spotted pacas. The animals were divided into two groups, five animals were used for fixing of samples in 10% aqueous formaldehyde for macroscopic studies and the other five animals were designated for microscopic analysis. These were arranged in pairs and had the vesicular, prostate, coagulating and bulbourethral glands identified, being structured as mucous glands, which lead into the pelvic urethra. It was concluded that the accessory genital glands found in the paca are the same as those found in most rodents, showing similar histological aspects.
    Animal reproduction science 01/2014; · 1.56 Impact Factor
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    ABSTRACT: The parenchymal distribution of the splenic artery was studied in order to obtain anatomical basis for partial splenectomy. Thirty two spleens were studied, 26 spleens of healthy horses weighing 320 to 450kg, aged 3 to 12 years and 6 spleens of fetus removed from slaughterhouse. The spleens were submitted to arteriography and scintigraphy in order to have their vascular pattern examined and compared to the external aspect of the organ aiming establish anatomo-surgical segments. All radiographs were photographed with a digital camera and the digital images were submitted to a measuring system for comparative analysis of areas of dorsal and ventral anatomo-surgical segments. Anatomical investigations into the angioarchitecture of the equine spleen showed a paucivascular area, which coincides with a thinner external area, allowing the organ to be divided in two anatomo-surgical segments of approximately 50% of the organ each.
    Anais da Academia Brasileira de Ciências 10/2013; · 0.85 Impact Factor
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    ABSTRACT: Sorubim trigonocephalus Miranda et Ribeiro, 1920 is popularly known as slipper, migratory specie of economic importance. It is much appreciated in gastronomy because it has good flavor and no intermuscular bones (spines). Specimens were collected on a stretch of the Teles Pires river, located in Alta Floresta/MT, anesthetized and euthanized in aqueous solution of benzocaine, fixed with 10% formaldehyde and transferred to the Laboratory of Animal Anatomy of Unemat to be analyzed and described the characteristics of the buccopharyngeal cavity. With a premaxilla well developed and head dorsoventrally flattened, S. trigonocephalus show out located on the ventral portion of the head mouth wide slit. The upper lip pigmentation had dark gray with small light areas, wider than the and without pigmentation. Was identified four dentigerous regions in in the anterior oral cavity and two in the pharynx region, both with viniliform tooth. The posterior portion of the oral cavity was bounded laterally by four pairs of gill arches that decreased in size from first to last pair, formed by two branches: the higher, shorter, and the lower, longer. The buccopharyngea cavity of S. trigonocephalus showed similar to other teleosts described in the literature, and is adapted to eating habits with diet ictiophagic carnivore and differing only by the absence of a structural tongue and pre maxilla well developed showing viniliform tooth.
    Pesquisa Veterinária Brasileira 10/2013; 33(10):1256-1262. · 0.54 Impact Factor
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    ABSTRACT: Callithrix penicillata belongs to the family Callitrichidae, Callithrix genus. They are basically insectivorous, but they consume fruits. The mucosa of the tongue is composed of some papillary types, revealing different levels of expertise. The present study attempted to describe the morphological and ultrastructural aspects of the dorsal surface of the C. penicillata, describing the characteristics and distribution of papillae found. Five tongues of C. penicillata (two females and three males), obtained from breeding colonies of CENP-Ananindeua-PA, died from natural causes. The material was fixed partly in a buffer solution paraformaldehyde 10% and partly in modified Karnovsky solution, divided into apex, body, and root, and then the fragments were used in light microscopy and scanning electron microscopy. The average length of the tongue of the females was 22 mm and for males 20.5 mm. Three types of papillae were described: filiform (along all tissue extension with 154 lm of diameter), fungiform (along all tissue extension with 275 lm of diameter), and vallate (just three units in caudal (dorsal) portion with 672 lm of diameter). Data analysis indicates that the distribution and ultrastructural morphology of the C. penicillata lingual papillae are some similar to other primates.
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    ABSTRACT: Primate endemic to Brazil, specifically in the Amazon rainforest, the Sauim feed on small vertebrates, invertebrates, exudates, flowers, nectar, leaves and fungi whose morphology is poorly known. Thus, the objective was to establish morphometric parameters and topographical conus of this species, as a basis for the practice of epidural anesthesia. For this purpose, four samples were evaluated, from the Universidade Federal Rural da Amazônia (UFRA). The Saguinus midas had seven lumbar vertebrae and three sacral vertebrae. After dissection of the conus, we recorded the anatomy of interest, emphasizing its beginning (base) and its end (apex), revealed that after measuring the level of base peak in L4 and S2, with an average length of 5.38cm, which leads us to suggest the lumbosacral region as the most suitable for the development of the practice of epidural anesthesia.
    Ciência Rural 06/2013; 43(6):1092-1095. · 0.38 Impact Factor
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    ABSTRACT: Saguinus niger popularly known as Sauim, is a Brazilian North primate. Sympathetic chain investigation would support traumatic and/or cancer diagnosis which are little described in wild animals. The aim of this study was to describe the morphology and distribution of sympathetic chain in order to supply knowledge for neurocomparative research. Three female young animals that came death by natural causes were investigated. Animals were fixed in formaldehyde 10% and dissected along the sympathetic chain in neck, thorax and abdomen. Cranial cervical ganglion was located at the level of carotid bifurcation, related to carotid internal artery. In neck basis the vagosympathetic trunk divides into the sympathetic trunk and the parasympathetic vagal nerve. Sympathetic trunk ran in dorsal position and originated the stellate ganglia, formed by the fusion of caudal cervical and first thoracic ganglia. Vagal trunk laid ventrally to heart and formed the cardiac plexus. In abdomen, on the right side, were found the celiac ganglion and cranial mesenteric ganglion; in the left side these ganglia were fusioned into the celiac-mesenteric ganglion displaced closely to the celiac artery. In both sides, the caudal mesenteric ganglion was located near to the caudal mesenteric artery.
    Anais da Academia Brasileira de Ciências 03/2013; · 0.85 Impact Factor
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    ABSTRACT: The arterial circuit of the brain is of great importance because it is responsible for vascularization of the brain and this is the main organ of the central nervous system and responsible for receiving and processing information. The species was chosen because it is a mammal belonging to the Xenarthra order and the members of this order are little studied because of the difficulty of access to these animals. To develop this work were studied five specimens of lesser anteater (Tamandua tetradactyla). The material had the arterial system filled with Neoprene latex stained in red, fixed in aqueous solution of 10% paraformaldehyde and dissected for vessels systematization. The encephalon arterial circuit of lesser anteater surrounds the mammillary body, the interpeduncular fossa, tuber cinereum, hypophysis and optic chiasm. The rostral portion of this circuit is characterized by rostral branches of internal carotid arteries and the caudal portion is formed by caudal communicant arteries from internal carotid artery. This animal species had a type II of encephalic irrigation with participation of internal carotid arteries and vertebrobasilar system to formation of arterial circuit.
    Ciência Rural 02/2013; 43(2):277-282. · 0.38 Impact Factor
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    ABSTRACT: The aim of this work is to study the morphological characteristics of the trachea of Saimiri sciureus through quantification and measurement of the cartilaginous rings, providing information to facilitate the election of more appropriate endotracheal tube, laryngeal mask or tracheostomy tube for anesthetic and emergency procedures, as it is a species of Neotropical primates most commonly used as biological models, and little is known about their morphology. Nine animals were investigated, being 4 adults and 5 young acquired from the Centro Nacional de Primatas (National Primate Center - CENP) - Ananindeua - PA, which died from natural causes and then fixed in aqueous buffered formalin 10%. Saimiri sciureus trachea comprises an average of 32.8 incomplete rings and an average length of 3.74 cm in young animals, while in adults it demonstrated an average of 30.25 rings and average length of 3.67 cm. The shape of the light and its proportion varied along the trachea. Endotracheal tube with a diameter the 2.0 - 2.5mm, laryngeal mask number 1.0 or tracheostomy tube neonatal Shiley number 3.0, can be placed in animals weighing 600g - 1.2 Kg. Given the great importance of the species studied, which is widely used as a biological model, the detailing on the morphology and morphometry of tracheal animal studies provides new approaches needed in respiratory emergency, as well as, facilitates the development of future anesthetic protocols.
    Anais da Academia Brasileira de Ciências 12/2012; 84(4):973-7. · 0.85 Impact Factor
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    ABSTRACT: The authors described the origin and composition of the brachial plexus of four Saimiri sciureus, from the National Primate Center (Cenp), Ananindeua/PA, which were fixed with formaldehyde and dissected. Findings revealed that the brachial plexus of this species is composed by nervous fibers from the roots of cervical vertebrae C4 to C8 and thoracic vertebrae T1, and organized into four branchs. Each branch has formed a nerve or a group of nerves, the origin was varied between animals, mostly were found the cranial trunk originate the subclavian nerve; the medium-cranial originate the suprascapular, subscapular, part of radial and in some cases the axillary, musculocutaneous and median nerves; the medium-caudal trunk originate part of radial nerve and in some cases the axillary, musculocutaneous, median, thoracodorsal, ulnar and medial cutaneous of forearm nerves, the last two nerves also originate from the caudal trunk.
    Pesquisa Veterinária Brasileira 12/2012; 32(12):1351-1354. · 0.54 Impact Factor
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    ABSTRACT: Primate order includes around 180 species. Morphological aspects of New World non-human primates (NHP) have been extensively investigated since last century. General commonsense describes oral cavity adaptations according to diet and feeding, dentition, tongue projection and head shape. Morphological appearance and dimension of the hard palate have been outstanding as interest in many species including man. Six young Saimiri sciureus hard palate were investigated. We measured the hard palate distance (HL), intercanine distance (ICD), intermolar distance (IMD), and interpremolar distance (IPD). Complete and incomplete palatine crests were quantified. We believe that better understanding of the mouth roof morphology will contribute to improve the management of captive animal's diet in order to re-introduce the animals in its habitat.
    Pesquisa Veterinária Brasileira 05/2012; 32(5):459-462. · 0.54 Impact Factor
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    ABSTRACT: The Pacu, Piaractus mesopotamicus, is a teleostei of the Characidae family, intensively cultivated in Brazil due to its rusticity, fast growth and easy adaptation. Morphological knowledge of the body systems including the lymphoid organs is necessary to improve fish production and supply subsidies for the maintenance of stocks. This study aimed to describe morphologically kidney and head kidney of Piaractus mesopotamicus, analyzing the cellular profile of each organ with the use of light microscopy and electronic transmission microscopy. The result of the macroscopic analysis showed that the localization of the kidney and head kidney is the same as found in the majority of the teleostei. The kidney presented a form in "H", where the medium region is expanded on the natatorium bladder. The head kidney presented a dilatation in the cranial region of the kidney. In the transmission electronic microscopy we found ultrastructural similarities with other teleostei fish. It can be concluded that the lymphoid organs (kidney and head kidney) of Piaractus mesopotamicus are histologically and ultra-structurally similar to the other teleostei.
    Pesquisa Veterinária Brasileira 05/2012; 32(5):453-458. · 0.54 Impact Factor
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    ABSTRACT: In this article, the reproductive system's morphology of three young animals of the species Saguinus midas, from the bauxite mine in Paragominas, is described. The specimens were fixed and preserved in a solution of 10% aqueous formaldehyde, followed by dissection, measurement of the genital organs (uterus, vagina, ovaries, and uterine tubes), and histological processing. The vulva is delimited by the labia, with a clitoris. It is lined by keratinized stratified squamous epithelium with sebaceous glands of holocrine secretion. The vagina is an elongated tube with an average length of 26 mm and diameter of 1 mm, presenting a non-keratinized squamous epithelium, disposed between the vestibule of the vagina and cervix, the latter being relatively short. The uterus is simple, has globular shape and is located in the caudal portion of the abdominal cavity, with an average length of 14 mm and average width of 7 mm. It is formed by vascular and serous layers of muscles, and undergoes a bifurcation to form two structures on the bottom of blind sac. The uterine tubes are long and convoluted with an average length of 35 mm (right) and 36 mm (left), consisting of loose connective tissue and muscle layer lined by simple ciliated columnar epithelium. The ovaries are large and ellipsoid with smooth surface. Histologically, one animal showed ovulation fosse.
    Microscopy Research and Technique 12/2011; 75(6):720-6. · 1.59 Impact Factor
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    ABSTRACT: Saimiri sciureus is a small New World primate (NHP) commonly called macaco-de-cheiro that inhabits the tropical forests of the Amazon basin. Anatomical features are not well studied in most primates, and the encephalic morphology and related structures are still quite unknown. Comparative anatomy of the meninges in South American primates is still scarce. Dura mater, arachnoid and pia mater are a group of stratified layers that surrounds and promotes protection to the medulla spinalis. This study aimed to shed light on the anatomy of dura mater in Samiri sciureus in order to contribute to the neuroscience in primates. We investigated three young females and two males of S. sciureus. Specimens were fixed through perfusion with a 10% formaldehyde aqueous solution. In S. sciureus encephalus few gyrus and circunvolutions, and a very delicate system consisting of eight sinus venosus was found between the dura mater layers. Based on our findings, we can conclude that the Saimiri sciureus dura mater is quite similar to other mammals, however we detected a new sinus venosus formation at the level of parietal bone, named sinus parietalis, what appears to be its first description.
    Pesquisa Veterinária Brasileira 12/2011; 31:7-10. · 0.54 Impact Factor
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    ABSTRACT: Saimiri sciureus is a New World non-human primate (NHP) that inhabits Brazilian rain forests. Surgical interventions in wild NHPs can be considered common both for experimental studies procedures and corrective procedures for endangered species. Among various anesthetic procedures, the epidural anesthesia or blockades, depending on the surgical procedure, might be considered elective for wild monkeys, mostly based on its safeness, efficiency and non-time consuming characteristics. However its safeness would be limiting because of the spinal cord arrangement. Notwithstanding the available former studies on New World NHP anatomy, the description of the medullar cone of Saimiri sciureus is still scarce. Therefore, we believe that the better understanding the medullar cone of Saimiri sciureus would contribute to improve the applicability of epidural procedures in the species. Vertebrae architecture of Saimiri sciureus was composed by 9 lumbar, 3 sacral and 18 coccygeal vertebrae, and the medullar cone measured about 3.3 cm. We can conclude that the conus medullaris in Saimiri sciureus is situated more caudally in comparison to other species.
    Anais da Academia Brasileira de Ciências 12/2011; 83(4):1339-44. · 0.85 Impact Factor
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    ABSTRACT: Callithrix penicillata belongs to the family Callitrichidae, Callithrix genus. They are basically insectivorous, but they consume fruits. The mucosa of the tongue is composed of some papillary types, revealing different levels of expertise. The present study attempted to describe the morphological and ultrastructural aspects of the dorsal surface of the C. penicillata, describing the characteristics and distribution of papillae found. Five tongues of C. penicillata (two females and three males), obtained from breeding colonies of CENP-Ananindeua-PA, died from natural causes. The material was fixed partly in a buffer solution paraformaldehyde 10% and partly in modified Karnovsky solution, divided into apex, body, and root, and then the fragments were used in light microscopy and scanning electron microscopy. The average length of the tongue of the females was 22 mm and for males 20.5 mm. Three types of papillae were described: filiform (along all tissue extension with 154 μm of diameter), fungiform (along all tissue extension with 275 μm of diameter), and vallate (just three units in caudal (dorsal) portion with 672 μm of diameter). Data analysis indicates that the distribution and ultrastructural morphology of the C. penicillata lingual papillae are some similar to other primates.
    Microscopy Research and Technique 09/2011; 75(3):282-4. · 1.59 Impact Factor
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    ABSTRACT: Caudal anaesthesia was initially proposed in 1926, since when techniques have been evolved for lumbar and sacral anaesthesia. Essentially, epidural anaesthesia demands regional anatomy knowledge. We aimed to determine medullar conus topography in sloth (Bradipus variegatus), in order to supply information for epidural anaesthesia in this species. Four adult sloths were investigated, two males and two females, that died from natural causes and were donated by the Zoobotanic Park of Emilio Goeldi Museum, Belém/Pará. It was observed that the medullar conus lies between L3 and S1vertebrae, average length measuring 2.7cm, and that the lumbar swelling is located between L1 and L3 with an average length of 1.0cm. We concluded that the most appropriate site to perform epidural anesthesia in sloths is from L1 to L3 vertebral spaces.
    Pesquisa Veterinária Brasileira 07/2011; 31(7):627-630. · 0.54 Impact Factor
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    ABSTRACT: Recently, superior cervical ganglionectomy has been performed to investigate a variety of scientific topics from regulation of intraocular pressure to suppression of lingual tumour growth. Despite these recent advances in our understanding of the functional mechanisms underlying superior cervical ganglion (SCG) growth and development after surgical ablation, there still exists a need for information concerning the quantitative nature of the relationships between the removed SCG and its remaining contralateral ganglion and between the remaining SCG and its modified innervation territory. To this end, using design-based stereological methods, we have investigated the structural changes induced by unilateral ganglionectomy in sheep at three distinct timepoints (2, 7 and 12 weeks) after surgery. The effects of time, and lateral (left-right) differences, were examined by two-way analyses of variance and paired t-tests. Following removal of the left SCG, the main findings were: (i) the remaining right SCG was bigger at shorter survival times, i.e. 74% at 2 weeks, 55% at 7 weeks and no increase by 12 weeks, (ii) by 7 weeks after surgery, the right SCG contained fewer neurons (no decrease at 2 weeks, 6% fewer by 7 weeks and 17% fewer by 12 weeks) and (iii) by 7 weeks, right SCG neurons were also larger and the magnitude of this increase grew substantially with time (no rise at 2 weeks, 77% by 7 weeks and 215% by 12 weeks). Interaction effects between time and ganglionectomy-induced changes were significant for SCG volume and mean perikaryal volume. These findings show that unilateral superior cervical ganglionectomy has profound effects on the contralateral ganglion. For future investigations, it would be interesting to examine the interaction between SCGs and their innervation targets after ganglionectomy. Is the ganglionectomy-induced imbalance between the sizes of innervation territories the milieu in which morphoquantitative changes, particularly changes in perikaryal volume and neuron number, occur? Mechanistically, how would those changes arise? Are there any grounds for believing in a ganglionectomy-triggered SCG cross-innervation and neuroplasticity?
    International journal of developmental neuroscience: the official journal of the International Society for Developmental Neuroscience 02/2011; 29(4):475-81. · 2.03 Impact Factor
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    ABSTRACT: The fluoroscopy-guided renal arteriography was evaluated in order to be used as an auxiliary method in investigations and as a way to experimentally induce kidney diseases in swine. The technique was effective to obtain sharp images as well as to determine the area of renal irrigation. Despite its easiness, trained professionals are required to perform it.
    Arquivo Brasileiro de Medicina Veterinária e Zootecnia 02/2011; 63(1):250-253. · 0.27 Impact Factor

Publication Stats

48 Citations
30.00 Total Impact Points

Institutions

  • 2010–2014
    • Universidade Federal Rural da Amazônia (UFRA)
      Pará, Pará, Brazil
    • Amazonian Federal Rural University
      Pará, Pará, Brazil
  • 2004–2011
    • University of São Paulo
      • Department of Surgery
      San Paulo, São Paulo, Brazil