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Comparative Vertebrate Anatomy - Coursework Example

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The author of this coursework "Comparative Vertebrate Anatomy " describes the anatomy of different animals. This paper outlines the maintenance of temperature, characteristics of the mammalian heart, the integumentary system, and the adaptation of animals. …
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Comparative Vertebrate Anatomy
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Download file to see previous pages The seal’s flippers are composed of living cells that need constant blood oxygen supply. The dilemma is that the circulation of blood to the flippers will bring back ice-cold venous blood to the interior of the seal's body. This dilemma is solved with the counter-current exchange system that is existent in these animals’ flippers. Venue companies are veins that surround the limb arteries of the seals to prevent the return of cold venous blood to the body of the seal(Koeslag, 1995).
Before the oxygenated blood enters the arteries of the flippers, the heat which is present that blood releases its heat through the venue companies to the cold venous blood. The oxygenated blood that enters the flipper arteries is cold as it circulates the flippers but when it enters the veins through the venue companies it is warmed near the body temperature (35°C) utilizing the heat that is released before its entry in the flipper artery. Thus, the counter-current exchange mechanism of the seals’ flippers prevents the alteration of the normal internal body temp of the animal which is 37°C even though blood is continuously circulating to the flippers(Koeslag, 1995).
Human beings also have a counter-current mechanism that is similar to that of the seals. Homo sapiens or humans belong to this taxonomic order: Kingdom- Animalia, Phylum Chordata, Subphylum Vertebrata, Class Mammalia, Subclass Eutheria, Order Primata, Suborder Arthropoidea, Family Hominidae, Genus Homo, and Species Sapiens(Goodman, 1999). The limbs of human beings are equipped with a counter-current system that maintains the normal temperature of the blood flows from the limbs during cold weather(Koeslag, 1995).
Closely at the deep center of the limbs, the arteries of humans are strategically located. These arteries are also surrounded by venue companies or deep veins that receive the blood that circulated the limb arteries for transportation to the center of the cardiovascular system.  ...Download file to see next pagesRead More
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