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17 results for “Intestinal Morphology”
FIGURE 2 in A new species of Auriculostoma (Trematoda: Allocreadiidae) from the intestine of Brycon guatemalensis (Characiformes: Bryconidae) from the Usumacinta River Basin, Mexico, based on morphology and 28 S rDNA sequences, with a key to species of the genus
FIGURE 2. Scanning electron micrographs of Auriculostoma lobata n. sp. (A) Anterior end with oral sucker bearing muscular lobe on either side, genital atrium and ventral sucker. (B) Pair of muscular lobes with a short posterior ‘‘ free’ ’ end, and 4 apical dome-like papillae (white arrows). (C) Lateral view of muscular lobe. (D) Distribution of dome-like papillae over oral sucker, 6 anterior (white arrows), 4 on the inner surface (white triangle), and 5 on the outer surface (white arrows).
FIGURE 4 in A new species of Auriculostoma (Trematoda: Allocreadiidae) from the intestine of Brycon guatemalensis (Characiformes: Bryconidae) from the Usumacinta River Basin, Mexico, based on morphology and 28 S rDNA sequences, with a key to species of the genus
FIGURE 4. Testes shape of the three species of Auriculostoma in Middle-American characiforms: A) A. totonacapanensis (holotype) from Astyanax mexicanus: testes oblique, with entire (smooth) margins. B) A. astyanace (holotype) from A. aeneus: testes in tandem, with entire (smooth) margins. C) A. lobata n. sp. from Brycon guatemalensis, Usumacinta River, Chiapas, Mexico, and D) A. lobata n. sp. from B. guatemalensis, Tenosique, Tabasco, Mexico: testes in tanden, with deeply lobated testes.
FIGURE 3. Phylogram representing a in A new species of Auriculostoma (Trematoda: Allocreadiidae) from the intestine of Brycon guatemalensis (Characiformes: Bryconidae) from the Usumacinta River Basin, Mexico, based on morphology and 28 S rDNA sequences, with a key to species of the genus
FIGURE 3. Phylogram representing a hypothesis for the relationships of Auriculostoma lobata n. sp. with other allocreadiids. The tree represents the single best tree obtained from maximum likelihood analysis based on 28S rDNA sequences from allocreadiids and rooted using species of Prosthenhystera (Callodistomidae). Numbers near internal nodes indicate bootstrap support values (*= values 100%).
FIGURE 1. Auriculostoma lobata n in A new species of Auriculostoma (Trematoda: Allocreadiidae) from the intestine of Brycon guatemalensis (Characiformes: Bryconidae) from the Usumacinta River Basin, Mexico, based on morphology and 28 S rDNA sequences, with a key to species of the genus
FIGURE 1. Auriculostoma lobata n. sp. (A) Ventral view of holotype. Scale bar = 500 µm. (B) Ventral view of ovarian complex of paratype. Scale bar = 100 µm. (C) Ventral view of terminal genitalia showing that the ejaculatory duct and the uterus open to the genital atrium (reconstruction made from the observation of several specimens). Scale bar = 500 µm. (D) Detail of the anterior and posterior testes of paratype. Scale bar = 500 µm. Abbreviations: AT= anterior testis, CS= cirrus sac, ED= ejaculatory duct, Eg= eggs, ES= esophagus, GA= genital atrium, GP= genital pore, MG= Mehlis´gland, OS= oral sucker, OU= opening of the uterus into genital atrium, Ov= ovary, PH= pharynx, PP= pars prostatica, PT= posterior testis, SR= seminal receptacle, SV= seminal vesicle, Ut= uterus, VF= vitelline follicles, VS= ventral sucker, VR= vitelline reservoir.
FIGURE 1 in Morphology and infraciliature of the oligotrich ciliate Strombidium rapulum (Yagiu, 1933) Kahl, 1934 (Protozoa, Ciliophora, Oligotrichida) from the intestine of sea urchin Hemicentrotus pulcherrimus Agassiz
FIGURE 1. Strombidium rapulum from live cells (A, B, D, E–G) and after protargol impregnation (C, E, H, I). (A) Ventral view of a representative specimen, arrowheads mark the cilia of ventral kinety. (B) To show the creeping state, note the cell attached to the substrate with its adoral membranelles. (C) To demonstrate variations in macronucleus shape. (D) Swimming trace. (E) Apical view of the buccal apparatus, arrowheads note argentophilic fibres. (F, G) Ventral view of specimens (from Yagiu 1933 and Poljansky 1951, respectively). (H,I) Ventral and dorsal view of same specimen, to show the infraciliature, arrowhead in H marks the pharyngeal fibres. AM = anterior membranelles; AP = apical protrusion; EM = endoral membrane; GK = girdle kinety; Ma = macronucleus; VK = ventral kinety; VM = ventral membranelles. Scale bars in (A, G–I) = 40 µm, in (F) = 50 µm.
FIGURE 2 in Morphology and infraciliature of the oligotrich ciliate Strombidium rapulum (Yagiu, 1933) Kahl, 1934 (Protozoa, Ciliophora, Oligotrichida) from the intestine of sea urchin Hemicentrotus pulcherrimus Agassiz
FIGURE 2. Microphotographs of Strombidium rapulum from live cells (A–D, F), after Methylgreen Pyronine staining and protargol impregnation (G–K). (A) A typical individual, arrowheads indicate lightreflecting granules in the cytoplasm while arrow marks the tail. (B) A slightly pressed specimens, to show lightreflecting granules in the cytoplasm (arrowheads). (C) Dorsal view, to show the protrusion between anterior membranelles (arrowheads). (D) To show details of the tail (arrow). (E) Ventral view, arrowhead marks the macronucleus. (F) Apical view, to show the apical protrusion (arrow). (G) Ventral view, to show the buccal apparatus. (H) Details of the anterior membranelles, arrowheads demonstrate the argentophilic fibres. (I) Ventral view, arrowheads indicate the girdle kinety, which is composed of monokinetids. (J) To show the ventral kinety (arrowheads). (K) Lateral view, to show the macronucleus. Scale bars = 60 µm.
FIGURE 2 in A new species of Auriculostoma (Trematoda: Allocreadiidae) from the intestine of Brycon guatemalensis (Characiformes: Bryconidae) from the Usumacinta River Basin, Mexico, based on morphology and 28 S rDNA sequences, with a key to species of the genus
FIGURE 2. Scanning electron micrographs of Auriculostoma lobata n. sp. (A) Anterior end with oral sucker bearing muscular lobe on either side, genital atrium and ventral sucker. (B) Pair of muscular lobes with a short posterior ''free'' end, and 4 apical dome-like papillae (white arrows). (C) Lateral view of muscular lobe. (D) Distribution of dome-like papillae over oral sucker, 6 anterior (white arrows), 4 on the inner surface (white triangle), and 5 on the outer surface (white arrows).
Fig. 4 in Rediscovery of an internal organ in heart urchins (Echinoidea: Spatangoida): morphology and evolution of the intestinal caecum
Fig. 4 Homology of selected accessory structures associated with the digestive tract of heart urchins (Echinoidea: Spatangoida). a Dissected specimen of Brisaster latifrons (left) and schematic drawing of the general digestive tract morphology found within all species of the genera Brisaster and Tripylaster, as well as some species of the genus Abatus (right). b Dissected specimen of Heterobrissus niasicus (left) and
Fig. 3 in Rediscovery of an internal organ in heart urchins (Echinoidea: Spatangoida): morphology and evolution of the intestinal caecum
Fig. 3 Absence and presence of the intestinal caecum in selected paleopneustine heart urchins (Spatangoida: Paleopneustina). Aboral views of partially dissected specimens. Ambulacrum III facing upwards. a–c Representatives of three outgroup taxa, i.e., Prenasteridae (a),
INFANT AND ADULT HUMAN INTESTINAL ENTEROIDS ARE MORPHOLOGICALLY AND FUNCTIONALLY DISTINCT
GEO Series GSE227205. Homo sapiens. 6 samples. Type: Expression profiling by high throughput sequencing.
Association Between Ultrasound Morphology of Intestinal Endometriosis Nodules and Symptom Severity
ClinicalTrials.gov study NCT06720688. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Morphological and molecular evidence that the zebrafish intestine is organized into a small and large intestine
GEO Series GSE20884. Danio rerio. 30 samples. Type: Expression profiling by array.
Fig. 5 in Rediscovery of an internal organ in heart urchins (Echinoidea: Spatangoida): morphology and evolution of the intestinal caecum
Fig. 5 Occurrence of the intestinal caecum in heart urchins (Echinoidea: Spatangoida). a An intestinal caecum is found only in the Schizasteridae (Spatangoida: Paleopneustina). b Distribution of the intestinal caecum among schizasterids. Both phylogenetic trees show the results of an analysis based on morphological characters (Stockley et al. 2005). The three genera mentioned as incertae sedis were not part of the cited phylogenetic study. Black-framed box genus analyzed in the present study, black square hypothetical evolutionary event, black star intestinal caecum present in all species analyzed, black-framed star intestinal caecum present only in some of the analyzed species, cross fossil taxon, R! loss of structure
Fig. 2 in Rediscovery of an internal organ in heart urchins (Echinoidea: Spatangoida): morphology and evolution of the intestinal caecum
Fig. 2 Gross morphology and histology of the digestive tract of Brisaster. a Schematic frontodorsal view of the digestive tract of B. latifrons, modified after De Ridder et al. (1985). b Oral view of the digestive tract of B. antarcticus. Part of the stomach removed (stippled line) to expose the intestinal caecum. Ambulacrum III facing upwards. c–h Histological sections through the posterior digestive tract of B. latifrons, their approximate locations indicated in (b). c Intestine. d Intestinal caecum. e Vacuoles inside the simple columnar epithelium of the intestinal caecum. f Part of the canal connecting intestinal caecum and intestine. g Mesenterial suspension of the intestinal caecum. h Rectum. Table 2 provides additional specimen information. ae anterior esophagus, bc buccal cavity, ca canal, ct connective tissue, ep epithelium, gc gastric caecum, ic intestinal caecum, in intestine, lu lumen of the digestive tract, me mesentery, nu nucleus, pe posterior esophagus, re rectum, si primary siphon, so somatocoel, va vacuole
Correlation Between Intestinal Microbiota, Inflamatory Biomarkers, Intestinal Morphology, Hepatic Fibrosis Degree and Vascular Reactivity.
ClinicalTrials.gov study NCT03178006. IPD Sharing: NO. Countries: 0. Publications: 0.
Effects of short distance transportation on physiological indexes, intestinal morphology, microbial community and transcriptome of jejunum in Weaned Piglets
GEO Series GSE225156. Sus scrofa. 6 samples. Type: Expression profiling by high throughput sequencing.
Caliban regulates mitochondrial morphology and redox state in enterocytes to maintain intestinal homeostasis in Drosophila
GEO Series GSE125032. Drosophila melanogaster. 6 samples. Type: Expression profiling by array.
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International Brain Laboratory public data
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OpenNeuro
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