Histologia do sistema reprodutor masculino. LabMeM UFSLag; 3 videos; No views; Updated today. Play all. Share. Loading Save. Veja grátis o arquivo Sistema reprodutor masculino enviado para a disciplina de Histologia Categoria: Anotações – Cuestionario histologia aparato reproductor femenino masculino free download as word Nesse video, mostramos a histologia do sistema reprodutor masculino .
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In the msculino paper, the female genital system of this tick has been considered as a whole and morphological and functional interrelations between different structures and also some other related items has been presented.
Next transversal cuts Fig.
It has been suggested 9 that fertilization takes place in the internal cylinder which extends from the uterus to the ovary itself. Morphological description of the ovary and of vitellogenesis. The lobular accessory gland is also shown in Fig 12 ; it is an enlargement of the vestibular vaginal epithelium which produces a secretion for the initial waterproofing layer for the eggs and also it is the most likely source of the genital sex pheromone 4, Coloration was done with hematoxylin-eosine.
There are some anatomical particularities in B.
A detail study of mating and sexual tick behavior could be read in Kiszewski et al. In these images, all structures seem to be surrounded by circulatory sinus in fact they were never shown in images of B. Histological and dissection Techniques: Vitellogenesis in the tick Amblyomma triste Koch, Acari: How to cite this article. Also, the degenerative stage VI has been described 5, Some serial slicing were performed histlogia and other longitudinally in horizontal or in sagittal sense, this procedure permits a better comprehension of three-dimensional disposition of organs inside the arthropod.
In the cervical vagina Fig.
Services on Demand Journal. Ixodidae and its potential significance for fertilization. The knowledge of these subjects is very important as a basic tool in all species in relation to morphological sciences and evolution, physiological events like ovulation, sexual behavior, maturation and mating, and also to research the interrelation tick-hemoparasite. When oviposition begins, the swollen structure is projected forward by hydrostatic pressure, the finger-like processes are everted from the body 4.
Surrounding the vestibular histoloiga there is a glandular epithelium, the lobular accessory gland, found only in ixodid ticks 4.
On the contrary, in B.
Figure 2 represents the same scheme 1 with vertical lines demarcating zones, in order to guide readers on the approximate location of a number of serial cuts. Central structures of female genital system Oviducts: Male introduces its chelicerae inside the female genital pore and then ejaculates into a sac, named ectospermatophore; inside itthere is another sac the endospermatophore full of inmature seminal cells named spermatids.
Spermatids suffer a capacitation inside the seminal receptacle in order to complete maturation; already mature cells are called spermiophores Fig. The penis has a conjunctive muscular sheath that can be seen in van Gieson’s coloured preparations. The ovary is composed by a layer of small epithelial cells with rounded nuclei surrounding the lumen, and oocytes in different developmental stages: Feldman-Musham B, Borut S.
Histologically, the testis of immature males shows seminiferous ducts with round egg-shaped forms. In the present paper, the general objective is to consider the female genital system of this tick as a whole and to hietologia the morphological and functional interrelations between different structures.
IV Reproduction in ticks Ixodoidea. Unfed and partially engorged females of B. Full text available only in PDF format. Oxford, ; pp. Ixodidae Role for pedicel cells. Morphological characterization of the ovary and oocytes vitellogenesis of the tick Rhipicephalus sanguineus Latreille, Acari: Cells very similar to the epithelial ones form the pedicels.
It is a paired structure formed by globular or finger like sacs sometimes called horns sistwma glandular tissue. When not in use, the organ is retracted within the anterior region of the body near the capitulum.
Anatomia e histologia do aparelho reprodutor masculino de Pomacea canaliculata Lamarck, Mollusca, Gastropoda, Pilidae. In their lumens we could notice masses of cells that will originate spermatozoids. Morphological, histological, and ultrastructural studies of the ovary of the cattle-tick Boophilus microplus Canestrini, Acari: Schneider I, Rudinsky JA. Assuring paternity in a promiscuous world: