In this stage, the pleon unfolds and the gonopods interact with the female copulatory organs. The second pair of gonopods can either be shorter or longer than the first gonopod (Guinot, 1979; Brandis et al., 1999; Ewers-Saucedo et al., 2015), which is referred to hereafter as short or long second gonopods.

What is a copulatory organ? An organ utilized by the male animal for insemination, that is, to deposit spermatozoa directly into the female reproductive tract. Various types of copulatory organs are found among the vertebrates, whereas cloacal apposition occurs in most other vertebrates which lack these structures.

Neurites encircle the organ equatorially, either as a ring-shaped circumpenial fibre mass or as dorsal and ventral commissures, which are connected to the ventrolateral nerve cords. Learn term:penis = the male copulatory organ with free interactive flashcards. Choose from 65 different sets of term:penis = the male copulatory organ flashcards on Quizlet. competition. Male organ characters exaggerated through mate choice can influence the receptiveness of a female {Brooks, 1995 #7; Rosenthal, 1998 #27}. However, increased copulatory organ size can reduce survival rate and increase energetic cost of the male {Langerhans, 2005 #23}. The copulatory organ of male fish in the family Poeciliidae is a Promesostoma convloutum Fig. 11 copulatory organ (a), live specimen; (b) copulatory organ with stylet (c) from Armonies W (2020) Analysing long-term change in small benthos: geomorphological dynamics affects method selection.

Copulatory organ

Drosophila. copulation. genitalia. hypandrium. sex comb.

Copulatory organs of eight species of the monophyletic taxon Childia were investigated in detail, using phalloidin fluorescence method and confocal microscopy.

In spiders, the paired male copulatory organs are situated on the pedipalps, which are paired body appendages anterior to the four pairs of walking legs. The use of pedipalps as intromittent organs in males is a synapomorphy for the Araneae [16]. At the tip of the male pedipalp, the so-called palpal organ (syns.

1, 2). The stylet apparatus contains a central tubular stylet sur- rounded by four The most familiar examples of erectile tissue are the genitalia of mammals, notably the penis and clitoris.

1. copulatory organ/penetrating device 2. site of sperm/androgen production 3. muscular passageway conveying sperm to the ejaculatory duct; in the spermatic cord 4. transports both sperm and urine 5. sperm maturation site 6. location of the testis in adult males 7. loose fold of skin encircling the glans penis 8. portion of the urethra between the prostate gland and the penis 9. empties a secretion into the prostatic urethra 10. empties a secretion into the membranous urethra

Images: 5; Videos: 0; No results found for . Did you mean ? Sort by: Relevance, Best Sellers, Date Apr 11, 2013 An art museum dedicated to the reproductive organs of fruit flies, spiders, snails and more. Jun 1, 2016 These intromittent organs are typically found in males and transfer sperm during copulation, although rare examples of protrusible structures The midventral copulatory organ is in all species composed of an outer muscular penis sheath and an inner penis cone.

Male copulatory organ composed of long copulatory tube with thick wall, slightly curved where associated to irregularly shaped bulb, linked to accessory piece with thin filament: MCO = 53–58 (56; n = 12); Ct = 52–57 (54; n = 10). Heel reduced to inconspicuous, He = 0–2 (1; n = 12). The copulatory organ consists of a posterior prostatic vesicle and an anterior stylet apparatus (Figs. 1, 2).
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site of sperm/androgen production 3. muscular passageway conveying sperm to the ejaculatory duct; in the spermatic cord 4.

empties a secretion into the membranous urethra 1. To engage in sexual intercourse in which the penis is inserted into the vagina. 2. To transfer male reproductive cells from one individual to another, usually into an internal organ or cavity, such as a cloaca.
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Jun 1, 2016 These intromittent organs are typically found in males and transfer sperm during copulation, although rare examples of protrusible structures

However, when given a choice, males of L. geometricus preferred to mate with adult females with whom they perform the somersault and are cannibalized [11, 13]. Since males recognize late-subadult The form of the male copulatory organ and the accessory piece varied considerably between 15-day-old specimens. From the Cambridge English Corpus They may, for example, inhibit the stimulating effect of endogenous growth factors on mitotic divisions of the myoblasts in the copulatory organ. From the Cambridge English Corpus

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Copulatory organ breakage, in which a portion of the male's genitalia breaks off during copulation is relatively common in spiders (Wiehle 1967; Breene & Sweet

loose fold of skin encircling the glans penis 8.

Define Copulatory organ. Copulatory organ synonyms, Copulatory organ pronunciation, Copulatory organ translation, English dictionary definition of Copulatory organ. Noun 1. sex organ - any organ involved in sexual reproduction reproductive organ organ - a fully differentiated structural and functional unit in an animal

location of the testis in adult males 7.

Various types of copulatory organs are found among the vertebrates, whereas cloacal apposition occurs in most other vertebrates which lack these structures. Learn more about the woman´s copulatory organs and go optimally prepared into the anatomy examination – here you find the most important information on the woman's sexual organs. Internal and external genitalia , female urethra , function and position of the ovaries . Read more! Copulatory organs of eight species of the monophyletic taxon Childia were investigated in detail, using phalloidin fluorescence method and confocal microscopy.Childia species were shown to have one, two or several tubular stylets, conical to cylindrical in shape, composed of few to numerous needles.