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In birds with webbed feet, a rete mirabile in the legs and feet transfers heat from outgoing blood in arteries to the incoming blood from the veins, with the net effect that the internal temperature of the feet is much closer to the ambient temperature, thus preventing heat loss. A similar structure is seen in other vertebrate extremities, including mammalian testes, which are more productive at lower temperatures, and in fishes such as tuna, whose core temperature is higher than that of the cold deep waters they inhabit.
In some fish, a rete mirabile fills the swim bladder with oxygen, using a countercurrent exchange system where varying pH levels causes oxygen to unbind from blood hemoglobin and then come out of solution when the blood is supersaturated.
In giraffeThe Giraffe Giraffa camelopardalis is an even-toed ungulate mammal and the tallest of all land living animal species. Males can be 4. 5 metres tall and weigh up to 900 kilograms. Females are generally slightly shorter and weigh less. Native to Africa, thes, a rete mirabile in the neck equalizes blood pressure when the animal bends down to drink.
The ancient physician GalenClaudius Galenus of Pergamum ( 131- 201 AD), better known as Galen was an ancient Greek physician. His views dominated European medicine for over a thousand years. Life Galen was born in Pergamum (modern-day Bergama, Turkey) to an architect's family. mistakenly thought that humanHuman beings are defined variously in biological, spiritual, and cultural terms, or in combinations thereof. Biologically, they are classified as Homo sapiens ( Latin for knowing man , a primate species of mammal with a highly developed brain. In spirituas also have a rete mirabile in the neck, apparently based on dissection of sheepThis article is about the animal; for other meanings of Sheep see Sheep (disambiguation). A sheep is any of several woolly ruminant quadrupeds, but most commonly the Domestic Sheep Ovis aries , which probably descends from the wild urial of south-central, and ascribed important properties to it; it fell to VesaliusAndreas Vesalius ( 1514 1564) was a Belgian anatomist and the author of the first complete textbook on human anatomy: De Humanis Corporis Fabrica (On the workings of the Human Body) (Basel, 1543). The French anatomy of the 16th century was distinguished b to demonstrate the error.