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Spiral valve shark Stock Photos and Images
Anatomy of a shark Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/anatomy-of-a-shark-image446420632.htmlRF2GX8620–Anatomy of a shark
Shark's internal organs, illustration Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/sharks-internal-organs-illustration-image564153399.htmlRF2RNRBBK–Shark's internal organs, illustration
Hammerhead Shark Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/hammerhead-shark-image444592569.htmlRF2GR8XA1–Hammerhead Shark
. Natural history. Zoology. 460 PISCESSUB-CLASS L—DIPNOI.. Fig. 1.—Australian Lung-Fish. feature distinguishing these fishes from all other members of the class. , The small and compressed gills open externally by a single aperture which is pro- tected by an operculum, from beneath which may protrude stunted and rudimental external gills. The nerves supplying the eyes, where they cross one another, have an interlacing of their fibres, and the short digestive tract exhibits the shark-like feature of a spiral valve in the membrane of the intestine. Not only is the elongated and sacculated air-bl Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/natural-history-zoology-460-piscessub-class-ldipnoi-fig-1australian-lung-fish-feature-distinguishing-these-fishes-from-all-other-members-of-the-class-the-small-and-compressed-gills-open-externally-by-a-single-aperture-which-is-pro-tected-by-an-operculum-from-beneath-which-may-protrude-stunted-and-rudimental-external-gills-the-nerves-supplying-the-eyes-where-they-cross-one-another-have-an-interlacing-of-their-fibres-and-the-short-digestive-tract-exhibits-the-shark-like-feature-of-a-spiral-valve-in-the-membrane-of-the-intestine-not-only-is-the-elongated-and-sacculated-air-bl-image232302596.htmlRMRDX898–. Natural history. Zoology. 460 PISCESSUB-CLASS L—DIPNOI.. Fig. 1.—Australian Lung-Fish. feature distinguishing these fishes from all other members of the class. , The small and compressed gills open externally by a single aperture which is pro- tected by an operculum, from beneath which may protrude stunted and rudimental external gills. The nerves supplying the eyes, where they cross one another, have an interlacing of their fibres, and the short digestive tract exhibits the shark-like feature of a spiral valve in the membrane of the intestine. Not only is the elongated and sacculated air-bl
Shark's internal organs, illustration Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/sharks-internal-organs-illustration-image564153527.htmlRF2RNRBG7–Shark's internal organs, illustration
. Natural history. Zoology. Fig. 1.—Australian Lung-Fish. feature distinguishing these fishes from all other members of the class. , The small and compressed gills open externally by a single aperture which is pro- tected by an operculum, from beneath which may protrude stunted and rudimental external gills. The nerves supplying the eyes, where they cross one another, have an interlacing of their fibres, and the short digestive tract exhibits the shark-like feature of a spiral valve in the membrane of the intestine. Not only is the elongated and sacculated air-bladder provided with a duct, but Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/natural-history-zoology-fig-1australian-lung-fish-feature-distinguishing-these-fishes-from-all-other-members-of-the-class-the-small-and-compressed-gills-open-externally-by-a-single-aperture-which-is-pro-tected-by-an-operculum-from-beneath-which-may-protrude-stunted-and-rudimental-external-gills-the-nerves-supplying-the-eyes-where-they-cross-one-another-have-an-interlacing-of-their-fibres-and-the-short-digestive-tract-exhibits-the-shark-like-feature-of-a-spiral-valve-in-the-membrane-of-the-intestine-not-only-is-the-elongated-and-sacculated-air-bladder-provided-with-a-duct-but-image232302593.htmlRMRDX895–. Natural history. Zoology. Fig. 1.—Australian Lung-Fish. feature distinguishing these fishes from all other members of the class. , The small and compressed gills open externally by a single aperture which is pro- tected by an operculum, from beneath which may protrude stunted and rudimental external gills. The nerves supplying the eyes, where they cross one another, have an interlacing of their fibres, and the short digestive tract exhibits the shark-like feature of a spiral valve in the membrane of the intestine. Not only is the elongated and sacculated air-bladder provided with a duct, but
Shark's internal organs, illustration Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/sharks-internal-organs-illustration-image564153416.htmlRF2RNRBC8–Shark's internal organs, illustration
. Animal biology. Zoology; Biology. CLASS PISCES 357 open into the intestine and serve to increase its capacity, taking the place of the spiral valve of the dogfish shark. The circulatory system includes a heart which lies in a sac called the pericardium lying below the pharynx. The pericardial cavity represents a portion of the coelom. Olfactory lobes. Roof of cerebrum, poirf between removed Cerebrum Pineal body Optic lobe Cerebellum Spinal cord Fig. 252.—^Dorsal view of the brain of a teleost fish, a salmon. {From a Ziegler model, after Wiedersheim.) The cerebellum conceals the medulla in th Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/animal-biology-zoology-biology-class-pisces-357-open-into-the-intestine-and-serve-to-increase-its-capacity-taking-the-place-of-the-spiral-valve-of-the-dogfish-shark-the-circulatory-system-includes-a-heart-which-lies-in-a-sac-called-the-pericardium-lying-below-the-pharynx-the-pericardial-cavity-represents-a-portion-of-the-coelom-olfactory-lobes-roof-of-cerebrum-poirf-between-removed-cerebrum-pineal-body-optic-lobe-cerebellum-spinal-cord-fig-252dorsal-view-of-the-brain-of-a-teleost-fish-a-salmon-from-a-ziegler-model-after-wiedersheim-the-cerebellum-conceals-the-medulla-in-th-image236764068.htmlRMRN5EYG–. Animal biology. Zoology; Biology. CLASS PISCES 357 open into the intestine and serve to increase its capacity, taking the place of the spiral valve of the dogfish shark. The circulatory system includes a heart which lies in a sac called the pericardium lying below the pharynx. The pericardial cavity represents a portion of the coelom. Olfactory lobes. Roof of cerebrum, poirf between removed Cerebrum Pineal body Optic lobe Cerebellum Spinal cord Fig. 252.—^Dorsal view of the brain of a teleost fish, a salmon. {From a Ziegler model, after Wiedersheim.) The cerebellum conceals the medulla in th
Shark's internal organs, illustration Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/sharks-internal-organs-illustration-image564153516.htmlRF2RNRBFT–Shark's internal organs, illustration
. Animal biology. Zoology; Biology. CLASS PISCES 351 open into the intestine and serve to increase its capacity, taking the place of the spiral valve of the dogfish shark. The circulatory system includes a heart which lies in a sac called the pericardium lying below the pharynx. The pericardial cavity represents a portion of the coelom. Olfactory lobes. Roof of cerebrum, parf between removed Cerebrum Pineal body Optic lobe Cerebellurn Spinal cord Fig. 239.—Dorsal view of the brain of a teleost fish, a salmon. (From a Ziegler model, after Wiedersheim.) The cerebellum oonoeals the medulla in thi Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/animal-biology-zoology-biology-class-pisces-351-open-into-the-intestine-and-serve-to-increase-its-capacity-taking-the-place-of-the-spiral-valve-of-the-dogfish-shark-the-circulatory-system-includes-a-heart-which-lies-in-a-sac-called-the-pericardium-lying-below-the-pharynx-the-pericardial-cavity-represents-a-portion-of-the-coelom-olfactory-lobes-roof-of-cerebrum-parf-between-removed-cerebrum-pineal-body-optic-lobe-cerebellurn-spinal-cord-fig-239dorsal-view-of-the-brain-of-a-teleost-fish-a-salmon-from-a-ziegler-model-after-wiedersheim-the-cerebellum-oonoeals-the-medulla-in-thi-image236765184.htmlRMRN5GBC–. Animal biology. Zoology; Biology. CLASS PISCES 351 open into the intestine and serve to increase its capacity, taking the place of the spiral valve of the dogfish shark. The circulatory system includes a heart which lies in a sac called the pericardium lying below the pharynx. The pericardial cavity represents a portion of the coelom. Olfactory lobes. Roof of cerebrum, parf between removed Cerebrum Pineal body Optic lobe Cerebellurn Spinal cord Fig. 239.—Dorsal view of the brain of a teleost fish, a salmon. (From a Ziegler model, after Wiedersheim.) The cerebellum oonoeals the medulla in thi
Shark's internal organs, illustration Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/sharks-internal-organs-illustration-image564153505.htmlRF2RNRBFD–Shark's internal organs, illustration
. Chordate morphology. Morphology (Animals); Chordata. gall bladder liver yolk stalk liver ventral pancreas. dorsal pancreas gall bladder bile duct dorsal pancreas internal yolk sac- bile duct yolk stalk- pancreatic duct- STAGE 21 B STAGE 24 D STAGE 25 + Figure 9-24. Three stages in the development of the spiral valve of the shark Pristiurus. The stip- pled tissues represent the lining of the gut, and several cross sections of stage 24 show the relation- ships of this lining to the rest of the v/all of the gut and the subintestinal vein. (After Ruckert, 1897) creatic acini of higher forms. Th Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/chordate-morphology-morphology-animals-chordata-gall-bladder-liver-yolk-stalk-liver-ventral-pancreas-dorsal-pancreas-gall-bladder-bile-duct-dorsal-pancreas-internal-yolk-sac-bile-duct-yolk-stalk-pancreatic-duct-stage-21-b-stage-24-d-stage-25-figure-9-24-three-stages-in-the-development-of-the-spiral-valve-of-the-shark-pristiurus-the-stip-pled-tissues-represent-the-lining-of-the-gut-and-several-cross-sections-of-stage-24-show-the-relation-ships-of-this-lining-to-the-rest-of-the-vall-of-the-gut-and-the-subintestinal-vein-after-ruckert-1897-creatic-acini-of-higher-forms-th-image234950834.htmlRMRJ6X56–. Chordate morphology. Morphology (Animals); Chordata. gall bladder liver yolk stalk liver ventral pancreas. dorsal pancreas gall bladder bile duct dorsal pancreas internal yolk sac- bile duct yolk stalk- pancreatic duct- STAGE 21 B STAGE 24 D STAGE 25 + Figure 9-24. Three stages in the development of the spiral valve of the shark Pristiurus. The stip- pled tissues represent the lining of the gut, and several cross sections of stage 24 show the relation- ships of this lining to the rest of the v/all of the gut and the subintestinal vein. (After Ruckert, 1897) creatic acini of higher forms. Th
Shark's internal organs, illustration Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/sharks-internal-organs-illustration-image564153441.htmlRF2RNRBD5–Shark's internal organs, illustration
. Elements of biology, with special reference to their rôle in the lives of animals. Biology; Zoology. 158 ELEMENTS OF BIOLOGY of the dorsal wall o£ the digestive canal, extending downward into the cavity of the stomach-intestine throughout its entire length. In the shark the food during digestion in the intestine passes around a SPIRAL VALVE (Fig. 105), which is a modified typhlosole and which TYPHLOSOLE BODY WALL. SEGMENT INTESTINE COELOM Fig. 104.—A portion of the intestine of the earthworm diagrammed to show the position of the typhlosole. thus serves to increase the area for food absorpti Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/elements-of-biology-with-special-reference-to-their-rle-in-the-lives-of-animals-biology-zoology-158-elements-of-biology-of-the-dorsal-wall-o-the-digestive-canal-extending-downward-into-the-cavity-of-the-stomach-intestine-throughout-its-entire-length-in-the-shark-the-food-during-digestion-in-the-intestine-passes-around-a-spiral-valve-fig-105-which-is-a-modified-typhlosole-and-which-typhlosole-body-wall-segment-intestine-coelom-fig-104a-portion-of-the-intestine-of-the-earthworm-diagrammed-to-show-the-position-of-the-typhlosole-thus-serves-to-increase-the-area-for-food-absorpti-image231664040.htmlRMRCW5RM–. Elements of biology, with special reference to their rôle in the lives of animals. Biology; Zoology. 158 ELEMENTS OF BIOLOGY of the dorsal wall o£ the digestive canal, extending downward into the cavity of the stomach-intestine throughout its entire length. In the shark the food during digestion in the intestine passes around a SPIRAL VALVE (Fig. 105), which is a modified typhlosole and which TYPHLOSOLE BODY WALL. SEGMENT INTESTINE COELOM Fig. 104.—A portion of the intestine of the earthworm diagrammed to show the position of the typhlosole. thus serves to increase the area for food absorpti
. Elements of biology, with special reference to their rôle in the lives of animals. Biology; Zoology. SEGMENT INTESTINE COELOM Fig. 104.—A portion of the intestine of the earthworm diagrammed to show the position of the typhlosole. thus serves to increase the area for food absorption. In the human digestive canal the lining of the intestine, in which most of the food absorption takes place, is thrown into transverse folds, termed. Fig. 105.—Diagram of the opened small intestine of a dogfish shark to show the relations of the spiral valve. PLiCiE (Fig. 106) covered with smaller folds known as Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/elements-of-biology-with-special-reference-to-their-rle-in-the-lives-of-animals-biology-zoology-segment-intestine-coelom-fig-104a-portion-of-the-intestine-of-the-earthworm-diagrammed-to-show-the-position-of-the-typhlosole-thus-serves-to-increase-the-area-for-food-absorption-in-the-human-digestive-canal-the-lining-of-the-intestine-in-which-most-of-the-food-absorption-takes-place-is-thrown-into-transverse-folds-termed-fig-105diagram-of-the-opened-small-intestine-of-a-dogfish-shark-to-show-the-relations-of-the-spiral-valve-plicie-fig-106-covered-with-smaller-folds-known-as-image231664038.htmlRMRCW5RJ–. Elements of biology, with special reference to their rôle in the lives of animals. Biology; Zoology. SEGMENT INTESTINE COELOM Fig. 104.—A portion of the intestine of the earthworm diagrammed to show the position of the typhlosole. thus serves to increase the area for food absorption. In the human digestive canal the lining of the intestine, in which most of the food absorption takes place, is thrown into transverse folds, termed. Fig. 105.—Diagram of the opened small intestine of a dogfish shark to show the relations of the spiral valve. PLiCiE (Fig. 106) covered with smaller folds known as
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