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Figure. Cross-sections of ovaries of Heliconia psittacorum (A,B) and Musa velutina (C,D). Polyethylene glycol–embedded ovaries are on the left (A,C). Paraffin-embedded ovaries are on the right (B,D). Scale bars: 1 mm. Images obtained by Anastasia Romanov (A and C) and Bruce Kirchoff (B and D). in USE OF POLYETHYLENE GLYCOL (PEG, CARBOWAX) AS AN EMBEDDING MEDIUM PRODUCES RESULTS COMPARABLE TO PARAFFIN

Figure. Cross-sections of ovaries of Heliconia psittacorum (A,B) and Musa velutina (C,D). Polyethylene glycol–embedded ovaries are on the left (A,C). Paraffin-embedded ovaries are on the right (B,D). Scale bars: 1 mm. Images obtained by Anastasia Romanov (A and C) and Bruce Kirchoff (B and D).

opencc-by-4.0Nov 2021View details →
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Fig. 1 in Characterization of the ovary fatty acids composition of Rhamdia quelen (Quoy & Gaimard) (Teleostei: Siluriformes), throughout their reproductive cycle

Fig. 1. Adult Rhamdia quelen sampling points location in the upper rio Uruguay. Geographical location of the points: rio Pelotinhas (PH: 28º09'41.1"S 50º26'34.3"W), mouth of rio Pelotinhas with rio Pelotas (MP: 28º30.0'32.1" S 50º56'40.9'' W), rio Pelotas BP: 28º12.0'49.7''S 50º45.0'22.6''W) and rio Vacas Gordas (VG: 28º1.0'15.5''S 46º57'1.0''W).

opencc-by-4.0Jun 2015View details →
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Fig.2. Relationship between unsaturated and saturated1 in Characterization of the ovary fatty acids composition of Rhamdia quelen (Quoy & Gaimard) (Teleostei: Siluriformes), throughout their reproductive cycle

Fig.2. Relationship between unsaturated and saturated1fatty acids in Rhamdia quelen ovaries collected from natural environment and grouped according to their gonadal maturation stage. UFA/SFA = (monounsaturated fatty acids + polyunsaturated fatty acids)/ saturated fatty acids.

opencc-by-4.0Jun 2015View details →
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Рис. 3. Teratocephalon hexahamus gen. n., sp. n.: A — трофико-сенсорный отΑеΛ теΛа; B — трофико-генитаΛьный отΑеΛ теΛа; C, D — переΑний конец теΛа. a — анус, am — амфиΑы, v — вуΛьва, cc — гоΛовная капсуΛа, ve — «жеΛуΑочек», pu — заΑняя матка, nr — нервное коΛьцо, rc — прямая кишка, au — переΑняя матка, r — ренетта, ep — экскреторная пора, o — яичник, e — яйцо Fig. 3. Teratocephalon hexahamus gen. n., sp. n.: A — trophic-sensory part of the body; B — trophic-reproductive part of the body; C, D — anterior end of the body. a — anus; am — amphids; v — vulva; cc — cephalic capsule; ve — "ventricle"; pu — posterior uterus; nr — nerve ring; pu — anterior uterus; r — renetta; rc — rectum; ep — excretory pore; o — ovary; e — egg in Recent data on soil nematodes of the families Teratocephalidae and Metateratocephalidae from Primorsky Region, Russia

Рис. 3. Teratocephalon hexahamus gen. n., sp. n.: A — трофико-сенсорный отΑеΛ теΛа; B — трофико-генитаΛьный отΑеΛ теΛа; C, D — переΑний конец теΛа. a — анус, am — амфиΑы, v — вуΛьва, cc — гоΛовная капсуΛа, ve — «жеΛуΑочек», pu — заΑняя матка, nr — нервное коΛьцо, rc — прямая кишка, au — переΑняя матка, r — ренетта, ep — экскреторная пора, o — яичник, e — яйцо Fig. 3. Teratocephalon hexahamus gen. n., sp. n.: A — trophic-sensory part of the body; B — trophic-reproductive part of the body; C, D — anterior end of the body. a — anus; am — amphids; v — vulva; cc — cephalic capsule; ve — "ventricle"; pu — posterior uterus; nr — nerve ring; pu — anterior uterus; r — renetta; rc — rectum; ep — excretory pore; o — ovary; e — egg

opencc-by-4.0Dec 2021View details →
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Рис. 1. Teratocephalus lirellus Andrassy, 1969: A — трофико-сенсорный отΑеΛ теΛа; B — поΛовая система; C — фрагмент теΛа с боковым поΛем; D — хвост; E — фрагмент поΛовой системы и среΑней кишки; F, G — переΑний конец теΛа. am — амфиΑы, lf — боковое поΛе, v — вуΛьва, cc — гоΛовная капсуΛа, pu — заΑняя матка, au — переΑняя матка, r — ренетта, ep — экскреторная пора, o — яичник Fig. 1. Teratocephalus lirellus Andrassy, 1969: A — trophic-sensory part of the body; B — reproductive system; C — fragment of the body with a lateral field; D — tail; E — fragment reproductive system and intestine; F, H — anterior end of the body. am — amphid; lf — lateral field; v — vulva; cc — cephalic capsule; pu — posterior uterus; au — anterior uterus; r — renetta; ep — excretory pore; o — ovary in Recent data on soil nematodes of the families Teratocephalidae and Metateratocephalidae from Primorsky Region, Russia

Рис. 1. Teratocephalus lirellus Andrassy, 1969: A — трофико-сенсорный отΑеΛ теΛа; B — поΛовая система; C — фрагмент теΛа с боковым поΛем; D — хвост; E — фрагмент поΛовой системы и среΑней кишки; F, G — переΑний конец теΛа. am — амфиΑы, lf — боковое поΛе, v — вуΛьва, cc — гоΛовная капсуΛа, pu — заΑняя матка, au — переΑняя матка, r — ренетта, ep — экскреторная пора, o — яичник Fig. 1. Teratocephalus lirellus Andrassy, 1969: A — trophic-sensory part of the body; B — reproductive system; C — fragment of the body with a lateral field; D — tail; E — fragment reproductive system and intestine; F, H — anterior end of the body. am — amphid; lf — lateral field; v — vulva; cc — cephalic capsule; pu — posterior uterus; au — anterior uterus; r — renetta; ep — excretory pore; o — ovary

opencc-by-4.0Dec 2021View details →
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Рис. 2. Euteratocephalus montanus sp. n.: A — трофико-сенсорый и трофико-генитаΛьный отΑеΛы теΛа; B — хвост; C — трофико-генитаΛьный отΑеΛ теΛа; D — фрагмент теΛа с боковым поΛем; E, F — переΑний конец теΛа. am — амфиΑы, lf — боковое поΛе, v — вуΛьва, va — вагина, g — гемизониΑ, cc — гоΛовная капсуΛа, ve — «жеΛуΑочек», pr — преректум,r — ренетта, f — фазмиΑа,ep — экскреторная пора, o — яичник, e — яйцо Fig. 2. Euteratocephalus montanus sp. n.: A — trophic-sensory and trophic-reproductive parts of the body; B — tail; C — trophic-reproductive part of the body; D — fragment of the body with a side field; E, F — anterior end of the body. am — amphid, lf — lateral field; v — vulva; va — vagina; g — gemizonid; cc — cephalic capsule; ve — "ventricle"; pr — prerectum; r — renetta; f — phasmids, ep — excretory pore; o — ovary; e — egg in Recent data on soil nematodes of the families Teratocephalidae and Metateratocephalidae from Primorsky Region, Russia

Рис. 2. Euteratocephalus montanus sp. n.: A — трофико-сенсорый и трофико-генитаΛьный отΑеΛы теΛа; B — хвост; C — трофико-генитаΛьный отΑеΛ теΛа; D — фрагмент теΛа с боковым поΛем; E, F — переΑний конец теΛа. am — амфиΑы, lf — боковое поΛе, v — вуΛьва, va — вагина, g — гемизониΑ, cc — гоΛовная капсуΛа, ve — «жеΛуΑочек», pr — преректум,r — ренетта, f — фазмиΑа,ep — экскреторная пора, o — яичник, e — яйцо Fig. 2. Euteratocephalus montanus sp. n.: A — trophic-sensory and trophic-reproductive parts of the body; B — tail; C — trophic-reproductive part of the body; D — fragment of the body with a side field; E, F — anterior end of the body. am — amphid, lf — lateral field; v — vulva; va — vagina; g — gemizonid; cc — cephalic capsule; ve — "ventricle"; pr — prerectum; r — renetta; f — phasmids, ep — excretory pore; o — ovary; e — egg

opencc-by-4.0Dec 2021View details →
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Figure 7 in Biochemical composition of the hemolymph, hepatopancreas, ovary, and muscle during ovarian maturation in the penaeid shrimps Fenneropenaeus merguiensis and F. penicillatus (Crustacea: Decapoda)

Figure 7. Comparison of protein, carbohydrate, and lipid in hepatopancreas, hemolymph, and ovary of immature, maturing, and fully mature females of two species.

opencc-by-4.0Apr 2013View details →
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Figure 6 in Biochemical composition of the hemolymph, hepatopancreas, ovary, and muscle during ovarian maturation in the penaeid shrimps Fenneropenaeus merguiensis and F. penicillatus (Crustacea: Decapoda)

Figure 6. Mean ± standard deviation of proteins, lipids, and carbohydrates in the hepatopancreas of F. penicillatus in different stages of maturation. Logarithmic hepatopancreas protein, lipid, and carbohydrate regressed against logarithmic GSI. Means with different letters are significantly different at P <0.05.

opencc-by-4.0Apr 2013View details →
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Figure 3 in Biochemical composition of the hemolymph, hepatopancreas, ovary, and muscle during ovarian maturation in the penaeid shrimps Fenneropenaeus merguiensis and F. penicillatus (Crustacea: Decapoda)

Figure 3. Mean ± standard deviation of proteins, lipids, and carbohydrates in the ovaries of F. merguiensis in different stages of maturation. Logarithmic ovary protein, lipid, and carbohydrate regressed against logarithmic GSI. Means with different letters are significantly different at P <0.05.

opencc-by-4.0Apr 2013View details →
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Fig. 3 in Morphology of the ovary and spermatheca of the leafcutter ant Acromyrmex rugosus queens (Hymenoptera: Formicidae)

Fig. 3. Light micrographs of an Acromyrmex rugosus spermatheca: (A) General appearance of the spermatheca with regions of columnar (Ce) and flat (Fe) epithelia in the reservoir and spermathecal gland (Gl) containing cells with a well-developed nucleus (black arrow). Scale bar: 30 μm. (B) The reservoir epithelium and transition between columnar (Ce) and flat epithelia (Fe). Scale bar: 10 μm. (C) The spermathecal gland (Gl) containing cells with a well-developed nucleus (black arrow) and cytoplasm with granules. Scale bar: 10 μm. (D) The spermathecal pump with muscles (Mu) associated with the spermathecal duct (D). Scale bar: 10 μm. Lu, lumen; Mu, muscles.

opencc-by-4.0Sep 2019View details →
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Fig. 2 in Morphology of the ovary and spermatheca of the leafcutter ant Acromyrmex rugosus queens (Hymenoptera: Formicidae)

Fig. 2. Light micrographs of an Acromyrmex rugosus ovariole. (A) Terminal filament (Tf) and germarium (Ge). Scale bar: 30 μm. (B) The vitellarium region with the egg chamber (Oc) and nurse chamber (Nc) at various stages of development, covered by follicular cells (Fc). Scale bar: 30 μm. (C) A follicle at the early stage of development with a small egg chamber (Oc) enveloped by cuboidal follicular cells (Fc) and a well-developed nurse chamber (Nc). N, nurse cell nucleus. Scale bar: 20 μm. (D) Flat follicular cells (Fc) covering the nurse chamber (Nc). Scale bar: 20 μm. (E) A follicle with an oocyte (Oc) with multiple accessory nuclei (black arrowhead). A disruption in the follicular epithelium that allows communication between the egg and nurse chambers (black arrow). Scale bar: 20 μm. (F) Oocytes (Oc) in the late maturation stages with a large number of yolk granules in the cytoplasm (black arrow), enveloped by cuboidal follicular (Fc) cells. The nurse chamber (Nc) is smaller than the egg chamber (Oc). Scale bar: 30 μm. (G) Cuboidal follicular epithelium (Fc) covering the oocyte (Oc). Scale bar: 20 μm. (H) A follicle at the final stage of development with degenerating nurse cells (Nc). Yolk granules in the ooplasm (black arrow). Oc, oocyte; Fc, follicular cells. Scale bar: 10 µm.

opencc-by-4.0Sep 2019View details →
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Fig. 1 in Morphology of the ovary and spermatheca of the leafcutter ant Acromyrmex rugosus queens (Hymenoptera: Formicidae)

Fig. 1. General appearance of the Acromyrmex rugosus reproductive system. Ovariole (Ov); lateral oviduct (Lo); spermatheca (Sp); trachea associated with the ovarioles (white arrow). Scale bar: 500 μm.

opencc-by-4.0Sep 2019View details →
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Fig. 1 in Morphological analysis and description of the ovaries of female silky sharks, Carcharhinus falciformis (Müller & Henle, 1839)

Fig. 1. Microphotograph of a mature ovary of silky shark. A - mature oocyte (yolk-rich) Staining: HE. B - epithelium (ep) and vitelline membrane (vm) Staining: HE. C - connective fibers (fc), Staining: Trichrome Gomori, D - epithelium (ep) and vitelline membrane (vm) and basal membrane (bm) Colour: HE Increase Gomori trichrome staining. E - vitelline membrane (vm), fat cells (cf), follicular cells (fc) and yolk (yk) Staining: Gomori Trichrome. F -simple epithelium (se) with cuboidal cells, albuginea composed of dense connective tissue (al) and muscle fibers regions (mf) Staining: Gomori Trichrome.

opencc-by-4.0Dec 2013View details →
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Macroscopic, histological and stereological image dataset of Four-Spot megrim (Lepidorhombus boscii) ovaries from the ICES Celtic Seas and Bay of Biscay Ecoregions

<p><strong>Contents:&nbsp;</strong></p> <p>This dataset contains the macroscopic and histological images of the ovaries of 68 Four-spot megrim (female, <em>Lepidorhombus boscii</em> (Risso, 1810)) collected from the ICES Celtic Seas or Bay of Biscay Ecoregions (Eco) in November 2019 (n=25; Eco=7j), November 2020 (n=16, Eco=7h &amp; 7j), October 2021 (n=12, Eco=8a,b,c) and November 2021 (n=15, Eco=7j) during the annual scientific campaign EVHOE (Evaluation Halieutique Ouest de l'Europe).</p> <p>&nbsp;</p> <p><strong>Images:</strong></p> <ul> <li><strong>Macroscopic_pictures.zip:&nbsp;</strong>archive in zip format of 139 pictures (.JPG; 2Mo-6Mo; JPG; 350pp) from 51 female Four-spot megrim dissected during this study. Each photo was taken with a digital camera (no flash). For each individual, up to three pictures were taken when possible (Le Meleder <em>et al.</em>, 2022) with :&nbsp;</li> <ul> <li>one picture of the entire fish with its abdominal cavity open with the ovaries in view</li> <li>one picture of the whole fish with the ovaries outside of the abdominal cavity</li> <li>one picture of the ovaries</li> <li>the name of the picture is the same as the fish's ID number.</li> </ul> <li><strong>Histology_slides.zip :</strong> archive in zip format containing the ovarian histological slides digitized using an Aperio CS (Scan Scope Console software, v.10.2.0.2352), x20 lens. The whole slide images (.svs) are of the 218 histological slides acquired during this study.&nbsp;</li> </ul> <p>&nbsp;</p> <p><strong>Data:</strong></p> <ul> <li><strong>QuPath.zip :</strong> archive in zip format containing the reading grids for the stereology readings of the histological cross sections of the ovaries under QuPath. For more information on QuPath stereology readings, see Dubroca <em>et al.</em> (2023) in <strong>References</strong>.</li> <ul> <li><strong>Stereo_BOS_read_me.txt</strong> : a text file (.txt) listing the acronyms used in the stereology reading grids under QuPath, as well as their meaning</li> </ul> <li><strong>Macro_BOS_read_me.txt</strong> : a text file (.txt) listing the acronyms used in the <strong>Macro_BOS.xlsx</strong> file, as well as their meaning.</li> <li><strong>Macro_BOS.csv</strong> : Data file (.csv) containing measurements of macroscopic parameters for all 68 fish sampled during this study. The information contained in this table is as follows:&nbsp;</li> <ul> <li>Fish_id: identification of the fish. This id is identical to the name given to the pictures of the full ovaries (<strong>Macroscopic_pictures_Data</strong>)</li> <li>ICES _Division: International Council for the Exploration of the Sea (ICES) division where the fish was sampled in the Food and agricultural Organization of the United nations (FAO) fishing area 27</li> <li>ICES_statistical_rectangle : Statistical rectangle where the fish was sampled within the FAO fishing area 27</li> <li>Date: date the fish was caught (dd/mm/yyyy)</li> <li>Total_fish_length: total length of the fish (cm)</li> <li>Ungutted_fish_weight: total weight of the fish (g)</li> <li>Otolith_ID: unique identification number given to each sampled fish through the Imagine (Ellebode <em>et al.</em>, 2022) software used by IFREMER</li> <li>Parasite: presence (Y) or absence (N) of parasite in or on the fish</li> <li>age: age (in years) of the fish after analysis of the fish's otolith. The IFREMER laboratory of Boulogne-sur-Mer (FRANCE) executed this analysis</li> <li>Visual_maturity : visually estimated maturity, after observation macroscopic criteria of the fish's gonad with the naked eye, following the WKASMSF (ICES, 2018) scale</li> <li>Liver_weight: liver weight (g)</li> <li>Droite_gonad_weight : gonad weight (g) of right ovary</li> <li>Gauche_gonad_weight : gonad weight (g) of left ovary</li> <li>Sections: number of cross sections sampled for the individual</li> </ul> </ul> <p>&nbsp;</p> <p><strong>Contact :</strong></p> <p>This dataset was established under the MATO (MATurit&eacute; Objectif des poissons par l'histologie quantitative) project, during the PhD of Carine Sauger (October 2021-2023), financed by France Filli&egrave;re P&ecirc;che (FFP/2020/AM/MF/109), under the supervision of IFREMER (Institut Fran&ccedil;ais de Recherche pour l'Exploitation de la Mer) and BOREA (Biologie des Organismes et Ecosyst&egrave;mes Aquatiques), and with the collaboration of a research facility from the University of Caen-Normandie : CMABIO3 (Centre de Microscopie Appliqu&eacute;e &agrave; la Biologie). For any enquiries, please contact: carine.sauger@gmail.com or laurent.dubroca@ifremer.fr</p>

opencc-by-4.0Aug 2024View details →
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FIG. 1 in neglectum (Dichapetalaceae), a second new species from Gabon with 4-5-locular ovaries, with an adapted key to the Central African species

FIG. 1. — Dichapetalum neglectum Breteler: A, flowering branch; B, detail of leaf base beneath; C, compound inflorescence of sessile, 1-3 flowered cymes; D, flower with bracteole at base of pedicel; E, base of calyx with impressed scar of pedicel; F, flower, one sepal, two petals and one stamen removed, showing staminodes (disc glands) and developing fruit with style; G, immature fruit. A-F, A.M. Louis et al. 370; G, Issembe 763. Drawing by H. de Vries. Scale bars: A, B, 1 cm; C-G, 3 mm.

opencc-by-4.0Dec 2006View details →
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Figure 9 in Position and development of oocytes in velvet worms shed light on the evolution of the ovary in Onychophora and Arthropoda

Figure 9. Development of the endogenous ovary in Epiperipatus biolleyi. Transmission electron micrographs. A, position of the ovarian anlage beneath the presumptive heart and attached to the pericardial floor (pe) in an embryo with a full number of somites. Cross-section of the dorsal body. B, cross-section of an ovarian tube. Note the distinct separation into a germinal epithelium (ge), which contains the primordial germ cells (pgc), and a sterile epithelium (se). C, detail of the sterile epithelium. D, detail of the germinal epithelium. Arrowheads indicate apical junctions. Abbreviations: bl, basal lamina; ec, ectoderm; ge, germinal ovarian epithelium; hc, haemocoel; hl, lumen of the presumptive heart; lu, lumen of the ovarian anlage; me, outer layer of mesodermal cells that will later form the ovarian musculature; nu, nucleus; pe, presumptive pericardial floor; pgc, primordial germ cells; se, sterile ovarian epithelium.

opencc-by-4.0Sep 2009View details →
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Figure 7 in Position and development of oocytes in velvet worms shed light on the evolution of the ovary in Onychophora and Arthropoda

Figure 7. Internal organization of the endogenous ovary in Epiperipatus biolleyi. Light micrograph (A) and transmission electron micrographs (B–F). A, cross-section of the ovary (dorsal is up). Note the central position of ovarian lumen (lu) surrounded by germinal epithelium (ge) and the lack of a sterile epithelium. B, maturating oocyte (oc) from the germinal epithelium lying within a spherical chamber (ch), which is formed by specific cells (ce) of the germinal epithelium. C, detail of epithelial cells and an oocyte. Arrowheads indicate apical junctions. D, detail of the basal portion of the germinal epithelium with surrounding connective tissue containing muscle cells (mc). E, lower magnification of connective tissue showing numerous tracheal tubes (arrows). F, peripheral region of connective tissue containing tracheal tubes (tr) and flattened cells with an electron-dense content (fc). Abbreviations: bl, basal lamina; ce, cells of germinal epithelium that form the oocyte chamber; ch, oocyte chamber; ct, connective tissue; fc, flattened cell; ge, germinal epithelium; hc, haemocoel; lu, ovarian lumen; mc, muscle cells; mv, microvilli; nl, nucleolus; nu, nucleus; oc, maturating oocytes; tr, tracheal tubes.

opencc-by-4.0Sep 2009View details →
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Figure 5 in Position and development of oocytes in velvet worms shed light on the evolution of the ovary in Onychophora and Arthropoda

Figure 5. Internal organization of the exogenous ovary in Opisthopatus roseus (A–C, E, F) and Peripatopsis balfouri (D). Transmission electron micrographs. A, detail of ovarian epithelia and lumen. Arrowheads indicate apical junctions connecting epithelial cells. B, mitotically dividing oogonium (og) from the germinal epithelium. C, maturating oocyte (oc) with associated cells (ce) of modified germinal epithelium. Arrows point to the basal lamina which is strongly folded. D, maturating oc in the process of breaking through the connective tissue and growing out into the haemocoel. E, detail of dorsal ovarian wall showing the sterile epithelium (se) and the connective tissue (ct), which contains the musculature (mc). F, higher magnification of connective tissue showing muscle cells and collagen fibres. Abbreviations: bl, basal lamina; ce, cells associated with an oocyte (sometimes referred to as 'follicle cells' in the literature); cg, collagen fibres; ct, connective tissue; ge, germinal epithelium; hc, haemocoel; he, haemocyte; lu, ovarian lumen; mc, muscle cell; mt, mitochondria; mv, microvilli; nl, nucleolus; nu, nucleus; oc, maturating oocyte; og, oogonium; se, sterile epithelium; st, growing stalk.

opencc-by-4.0Sep 2009View details →
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Figure 4 in Position and development of oocytes in velvet worms shed light on the evolution of the ovary in Onychophora and Arthropoda

Figure 4. Internal organization of the exogenous ovary in Opisthopatus roseus (A, B) and Peripatopsis balfouri (C). Transmission electron micrographs. A, cross-section through the middle of the ovary. Dorsal is up. Note the unpaired lumen (lu) and the separation of the ovarian epithelium into a dorsal sterile epithelium (se) and a ventral germinal epithelium (ge). B, stalked oocytes enclosed by a vitelline membrane (= primary egg membrane). C, detail of a stalk. Arrows indicate intermediate filaments, arrowheads point to hemidesmosomes. Inset shows continuity of the basal lamina covering a stalk and a maturating oocyte that bulges into the haemocoel of the female. Abbreviations: bl, basal lamina; ct, connective tissue; ge, germinal epithelium; hc, haemocoel; lu, ovarian lumen; nl, nucleolus; nu, nucleus; oc, maturating oocytes; se, sterile epithelium; st, stalk; vm, vitelline membrane.

opencc-by-4.0Sep 2009View details →
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Figure 6 in Position and development of oocytes in velvet worms shed light on the evolution of the ovary in Onychophora and Arthropoda

Figure 6. Internal organization of the pseudoendogenous ovary in Metaperipatus inae (A–E) and Metaperipatus blainvillei (F). Light micrographs (A, B) and transmission electron micrographs (C–F). A, cross-section of the ovary (dorsal is up). Note the lateral position of the crescent-shaped ovarian lumen (lu) and the central position of the germinal epithelium (ge). B, detail of stalked oocytes (oc) from the germinal epithelium, which do not bulge into the haemocoel but retain their position within the ovary. C, detail of cells (ce) surrounding a maturating oocytes in the germinal epithelium. D, detail of a stalk. Arrows indicate the intermediate filaments. E, detail of the lumen and ovarian epithelia. The epithelial cells are connected by an apical junction (arrowhead). F, lateral ovarian wall consisting of the sterile epithelium (se) and connective tissue containing muscle cells (mc), a haemocyte (he), and sperm (sh). Abbreviations: bl, basal lamina; ce, cells associated with an oocyte; cg, collagen fibres; ct, connective tissue; ge, germinal epithelium; hc, haemocoel; he, haemocyte; lu, ovarian lumen; mc, muscle cell; mv, microvilli; nl, nucleolus; nu, nucleus; oc, maturating oocyte; se, sterile epithelium; sh, sperm head; st, stalk; sw, sterile ovarian wall.

opencc-by-4.0Sep 2009View details →

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Allen Brain Atlas

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Last verified 2026-04-30Open record

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Last verified 2026-04-29Open record

OpenNeuro

OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.

openneuro
neuroscienceopenPublished datasets are available on demand over the internet.
Last verified 2026-04-29Open record