Digestive System Collection

Gastrointestinal nematodes
Illustration of a gastrointestinal nematodes

Muskrat -Ondatra zibethicus-, adult sitting on the shore of a pond eating grass, Illmitz, Lake Neusiedl, Burgenland, Austria, Europe

Little Grebe -Tachybaptus ruficollis-, Tyrol, Austria

Marbled White -Melanargia galathea-, Germany

Human digestive system

Two cowpats on meadow

Ringlet -Aphantopus hyperantus- sucking nectar, Lower Saxony, Germany

European Pied Flycatcher -Ficedula hypoleuca-, male with an insect in its beak perched on a branch, Altenseelbach, Neunkirchen, North Rhine-Westphalia, Germany

Hamster -Cricetus cricetus- taking a rosehip for its hoard, Austria

Copper engraving, angora goat

Emperor Swallowtail -Papilio ophidicephalus-

Bohemian Waxwing -Bombycilla garrulus- eating an overripe frozen apple in winter, Swabian Alb biosphere reserve, Baden-Wurttemberg, Germany

Peristalsis
Illustration showing the process of Peristalsis. Peristalsis is the process of involuntary wave-like successive muscular contractions by which food is moved through the digestive tract

Bonnet macaque -Macaca radiata-, baby monkey in captivity, Laos, Southeast Asia

Illustration of Ivan Pavlov's Dog Digestive System Studies
(Original Caption) Pavlov's famous dog with experimental set up demonstration condition reflex phenomenon. Undated illustration

Illustration of Dr. William Beaumont Inserting Tube In Alexis St. Martin's Torso
(Original Caption) Illustration depicting Dr. William Beaumont (1785-1853) experimenting with digestive juice by tapping a fistule into the stomach of Alexis St. Martin. Undated colored drawing

Black Pug lying on the grass and eating an apple

Human digestive system, illustration

Diagram of the abdominal cavity in the human body with the liver removed

Illustration of abdominal cavity including liver, pancreas, stomach, small intestine, colon and bladder

Diagram showing human liver, stomach, gallbladder and pancreas

Internal anatomy of domestic cat (Felis catus), showing organs

Salt marsh nature reserve with the Neuland Lighthouse, Hohwacht Bay, Behrensdorf, Schleswig-Holstein, Germany, Europe

Texel sheep, mouflons -Ovis orientalis aries-, silhouette of ewe and lamb at dusk, Oudeschild, Texel, West Frisian Islands, province of North Holland, The Netherlands

Nutria, Coypu or River Rat -Myocastor coypus-, Wiesbaden, Hesse, Germany

Goats -Capra- feeding on Argan fruits or Argan nuts on an Argan tree -Argania spinosa-, Chouaker, Essaouira Province, Marrakech-Tensift-Al Haouz, Morocco Goats have the ability to climb trees

Stomach digestive system engraving 1895
Meyers Konversations-Lexikon. Ein Nachschlagewerk des allgemeinen Wissens, 5th edition 17 volumes Bibliographisches Institut - Leipzig 1895-1897

Common sundew, Round-leaved sundew -Drosera rotundifolia-, glandular tentacles

Scottish Highland Cattle or Kyloe grazing on thistle flowers, northern Scotland, Scotland, United Kingdom, Europe

Elephants standing in the water drinking and feeding, African Elephants -Loxodonta africana-, Koinachas waterhole, Etosha National Park, Namibia

Marmot -Marmota marmota- nibbling on a peanut, Salzburger Land, Austria

Caterpillar of a Grey Dagger Moth -Acronista psi- feeding on an Eared Sallow Bush -Salicetum auritae-, Baden-Wurttemberg, Germany

Fieldfare -Turdus pilaris-

Larva of a glass wing butterfly -Methona spec. possibly Methona confusa-, Tambopata Nature Reserve, Madre de Dios region, Peru

Healthy small intestines, artwork
Healthy small intestines, computer artwork

Cross section of human stomach

Cross section biomedical illustration of chemical breakdown in the digestive system

Copper engraving, beaver

Brown hare -Lepus europaeus- sitting in grass, Burgenland, Austria, Europe

Grey Heron -Ardea cinerea- standing in shallow water, with a captured fish in its beak, Camargue, France, Europe

Two Camargue Horses -Equus caballus- eating in a protected area, Camargue, France, Europe

African elephants -Loxodonta africana- at the Addo Elephant Park, South Africa

Grey Heron -Ardea cinerea- with prey, fish, North Hesse, Hesse, Germany

Song Thrush -Turdus philomelos- with earthworm in beak, Lake Neusiedl, Burgenland, Austria, Europe

Mountain pasture with a dairy cow and flowers, after a thunderstorm, Zanser Alm alp, Santa Maddalena, Villnoess or Funes Valley, Geisler Group, Odle Mountains, Dolomites, South Tyrol, Italy, Europe

Red Kite -Milvus milvus- feeding on hare, Allgaeu, Bavaria, Germany, Europe

African Buffalo -Syncerus caffer- and White Pelicans -Pelecanus onocrotalus-, Lake Nakuru National Park, Kenya, East Africa, Africa, PublicGround

Lioness -Panthera leo- feeding on wildebeest -Connochaetes taurinus- observed by two young lions, Masai Mara National Reserve, Kenya, East Africa, Africa, PublicGround

Golden Eagle -Aquila chrysaetos- with bait and a Hooded Crow -Corvus corone cornix- during a blizzard, Kainuu, Utajarvi, Nordfinnland, Finland

Glasswinged butterfly -Greta oto-, food intake, Mainau island, Baden-Wuerttemberg, Germany, Europe

Asian Elephant -Elephas maximus-, Kerala, India

Chital -Axis axis-, Tamil Nadu, India

African Elephant -Loxodonta africana- feeding on high reeds on the river banks of the Zambezi, Lower Zambezi, Zambia

Bumblebee -Bombus sp. -, feeding on a Dandelion flower -Taraxacum sp. -, detail view
Bumblebee -Bombus sp.-, feeding on a Dandelion flower -Taraxacum sp.-, detail view

Sheep -Ovis orientalis aries- with lamb feeding in dandelion meadow, Texel, The Netherlands

Wood mouse -Apodemus sylvaticus- feeding on seed, Sauerland, North Rhine-Westphalia, Germany

European Mouflon -Ovis ammon musimon-, female and two lambs eating grass, Thuringia, Germany

Llama -Llama gLlama- grazing in front of a typical Incan wall, UNESCO World Heritage Site, Machu Picchu, Peru

Llamas -Lama glama- in front of a typical Incan wall, UNESCO World Heritage Site, Machu Picchu, Peru

Kirks dik-dik -Madoqua kirki-, Etosha National Park, Namibia, Africa

Blue Tit -Cyanistes caeruleus, Syn. Parus caeruleus-, with caught insect at the hole of a nesting box, Poel Island, Mecklenburg-Western Pomerania, Germany, Europe

Scarce Swallowtail butterfly -Iphiclides podalirius- on Shrub Verbena, Stalida, Stalis, Crete, Greece, Europe

Marmalade Hoverfly -Episyrphus balteatus- feeding on pollen, Untergroeningen, Baden-Wuerttemberg, Germany, Europe

Pasture in the salt marsh nature reserve, Hohwacht Bay, Behrensdorf, Schleswig-Holstein, Germany, Europe

Lomestic sheep, with the Westerheversand Lighthouse in the distance, Westerhever, North Frisia, Schleswig-Holstein, northern Germany, Germany, Europe

Lion -Panthera leo-, feeding, Namibia

Lions -Panthera leo- feeding, Namibia

Wiekopolska, gelding, skewbald horse, grazing, portrait

Black Aberdeen Angus cattle grazing on a pasture on the north coast of Scotland, Caithness, Scotland, United Kingdom, Europe

Young Burchells Zebra -Equus burchellii-, Etosha National Park, Namibia

Common Hoverfly -Spaerophoria scripta-, female sucking nectar, Untergroeningen, Baden-Wuerttemberg, Germany, Europe

Greater Kudu -Tragelaphus strepsiceros-, Etosha National Park, Namibia

Black Rhino -Diceros bicornis- grazing at the edge of the Etosha Pan, Etosha National Park, Namibia

Giraffe -Giraffa camelopardalis- feeding on camelthorn-bush, Etosha National Park, Namibia

Grey Thuringian Warmblood mare, with backlighting

Burchells Zebra -Equus burchellii-, dung, Etosha National Park, Namibia

Plains Zebra -Equus quagga-, Etosha National Park, Namibia

Bull elephant feeding at the edge of the Etosha Pan, African Elephant -Loxodonta africana-, Etosha National Park, Namibia

European Garden Spider or Cross Orbweaver -Araneus diadematus- with prey in its web, Hesse, Germany, Europe, PublicGround

Elephants standing in the water drinking, African Elephants -Loxodonta africana-, Koinachas waterhole, Etosha National Park, Namibia

African Elephant -Loxodonta africana- feeding, Etosha National Park, Namibia

Eurasian Red Squirrel -Sciurus vulgaris- sitting on a branch, Germany

Short-tongued Hoverfly -Villa spec.- drinking from a flower of the Western Strawberry Tree -Arbutus unedo-, Europa, Switzerland

cowpat on meadow

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