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The Platypus

Organ Systems
by

Kelsey Spears

on 24 April 2013

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Transcript of The Platypus

A platypus has a closed circulatory system, consisting of the blood vessels, veins, blood, and a four-chambered heart. The Circulatory System The Digestive System WHAT ARE THE ORGANS AND STRUCTURES? The nervous system is responsible for transmitting signals throughout the body, using stimuli and nerve receptors to communicate from system to system. Platypodes have the typical five senses of humans, as well as heightened smell brought on from the chemoreception of the Jacobson's organ. They are the only mammals known to have electro-receptors on their bill to help find and sort through their prey. By Kelsey Spears and Sophie Rose, Period 7 The Platypus The Nervous System WHAT ORGANS AND STRUCTURES ARE INVOLVED? The Respiratory System WHAT ORGANS AND STRUCTURES ARE INCLUDED? Homeostasis The platypus's endocrine system and nervous system are able to maintain homeostasis within the body, communicating with all the systems and letting them know when a certain internal condition must be changed. They are able to alert the circulatory system to keep the platypus's body temperature constant by controlling the heat produced from metabolism (all the chemical reactions that occur in the body). It can reduce blood flow to areas of its body that have no fur - particularly its tail, rear feet and bill. Its fur is waterproof and traps an insulating layer of air next to its skin. The heart rate of the platypus can even drop down from 140-230 beats per minute to almost 0 beats per minute in order to survive in colder waters. The Reproductive System The Excretory System Development stages of the Platypus References AKA: Ornithorhynchus anatinus WHAT ORGANS AND OTHER STRUCTURES ARE INVOLVED? WHAT IS ITS FUNCTION? The function of the circulatory system is to transport blood, gases and dissolved substances throughout the organism to all cells. WHAT ORGANS
AND STRUCTURES
ARE INVOLVED? The digestive system of the platypus is not able to be studied by scientists because a platypus's food becomes too finely ground to be traced throughout the organism. Any information found regarding the analysis of its food has been retrieved from their cheek pouches. A platypus has a small, thin-lined stomach and a considerably short digestive-intestinal tract. WHAT IS ITS FUNCTION? Ironically... Did you know? Platipodes don't even have teeth! They use rocks that become mixed in with their prey to grind up their food for them. Watch out though... they are still venomous! WHAT IS ITS FUNCTION? WHICH ORGANS AND STRUCTURES ARE INVOLVED? Unlike most mammals, the female platypus has a cloaca (one exit hole for waste and eggs). The platypus uses internal sexual reproduction. The baby develops inside the female in an egg. The egg(s) are laid in a burrow. The male reproductive system includes the cloaca also, which is where the reproductive organ is. Semen is carried from the testes by the urethra. The testes of the male are located within the platypus' body (called a testicond). WHAT IS THE FUNCTION? The function of the reproductive system is to produce offspring. This ensures the continuity of the platypus species. Being mammals, we actually have the same respiratory organs as a platypus- the lungs being the main organ in which the platypus breathes. WHAT IS THE FUNCTION? The platypus breathes by using its lungs, and breathes out of its nostrils. Their respiratory system allows for the regulation of and exchange of gases throughout the body. This function serves the sure survival of the species. Without this system, the animal would surely die. DID YOU KNOW: Did you know that the platypus is able to hold its breath for up to two minutes underwater when diving for food, and because of this, may make hundreds of dives in order to find enough food for a single feeding? They may also hold their breath underwater for 5-6 minutes if they are threatened. The platypus' method of excreting waste products is the same in both sexes. The bladder and ureters enter a urinogenital sinus, which is connected to the cloaca, and through which urine is passed. Faeces enter the cloaca at an opening behind the urinogenital sinus and are then excreted. WHAT IS THE FUNCTION? The excretory system is responsible for removing wastes produced by the body. These wastes must be removed, or excreted, in order for the body to remain healthy. The nervous system involves major organs like the brain and the spinal cord. Smaller structures include electro-recpetors beneath the skin and a vomeronasal organ, or the Jacobson's organ within their bill. Although this organ is a part of the olfactory system, many parts of the two systems overlap. THE MUTANT ANIMAL!!!
THE PLATYPUS STARTLED SCIENTISTS WHEN IT WAS DISCOVERED IN EASTERN AUSTRALIA WITH ITS DUCK BILL, BEAVER TAIL AND OTTER FEET. THEY ARE ALSO ONE OF ONLY THREE MAMMALS KNOWN TO LAY EGGS! When platypodes are born (after they hatch!), they are hairless, have a full set of teeth and venomous spur buds, and are deaf and blind. They drink the mother's milk just as most mammals do, except the milk is merely excreted out the abdomen. After four months, the young platypodes are able to leave their homes in search of solid food and find their own home to live in isolation. By now, the venomous buds will have fallen off the females and all of the teeth of the organisms will have fallen out. The platypus becomes sexually mature at age two and can begin mating. While the female prepares extensively for the new babies, the male takes no part in raising them. Most platypodes live until the age of 11 in the wild and 17 in captivity. Description and Behavior. Bernstein, D.A., Roy, E.J., Srull, T.K., & Wickens, C.D., 1991. Psychology. Boston: Houghton Mifflin Company.
http://www.platypus.org.uk/facts-descrip.htm Animal Corner. 15 April 2013.
http://www.animalcorner.co.uk/venanimals/ven%20mammalsPlat.html Sheppard Software. 15 April 2013.
http://www.sheppardsoftware.com/content/animals/animals/mammals/platypus.htm Platypus Project by Yang. 15 April 2013.
http://local.brookings.k12.sd.us/krscience/zoology/webpage%20projects/sp10webprojects/platypus/platypus.htm http://www.google.com Platypodes are one of three known mammals to lay eggs. One to three eggs are laid and they usually hatch within 10 days.
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