"Circulatory system" Essays and Research Papers

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    upper and lower extremities then back to the center (heart) again. I. CIRCULATORY SYSTEM  the main transportation and cooling system of the body.  responsible for transporting materials throughout the entire body. It transports nutrients‚ water‚ and oxygen to your billions of body cells and carries away wastes such as carbon dioxide that body cells produce.  fluid distribution network PARTS OF THE CIRCULATORY SYSTEM:  The Heart‚ The Blood‚ and The Blood vessels. HEART  Heart weighs

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    Fish: Fish Niche - Fishes ecological niches that work in with their respiratory systems and gas exchange posess live in water eg. sea‚ rivers‚ streams and ponds. Fish such as cod live near the sea floor with competitors such as red cod‚ spotty and kahawai challenge them. There are predators such as dolphins‚ sharks and also people. Their gas exchange system has to be efficient for them to be able to compete with those fish and escape from predators. Fish live in an acquatic environment. Water

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    in that it is elongate and nearly cylindrical in cross section. The abdomen is well developed and its segmentation is easily noted. The crayfish has bilateral symmetry‚ anterior‚ posterior‚ dorsal‚ ventral‚ right‚ and left. Nervous System The crayfish nervous system

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    Frogs: Blood and Frog

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    respiratory and circulatory systems? The frog’s heart is in front and above the liver while the lungs are under the liver and off to the sides.  The locations of these two organs affect interactions between the frogs’s respiratory and circulatory systems because a frog’s heart needs oxygen which is required from the lungs therefore the circulatory system which is the blood and the heart needs oxygen from the respiratory system which is the lungs. Since they are so close together‚ both systems have easy

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    The Respiratory System

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    The human body requires many things to function. One of the most important requirements is oxygen. Oxygen is used by the entire body to make energy. The Respiratory System collects and filters the air we breath to get that precious oxygen. The respiratory(breathing) process begins when you inhale and air is taken in through the mouth and/or nose. The air flows into the pharynx(throat) and enters the trachea(windpipe). The air then flows into one of two bronchi‚ left bronchus and right bronchus.

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    the surface waters there can be about 5 ml. of oxygen per litre of water. This is much less than the 210 ml. of oxygen per litre of air that we breath‚ so the fish must use a special system for concentrating the oxygen in the water to meet their physiological needs. Here it comes again‚ a counter current exchange system‚ similar to the one we found in the fish’s swim bladder and in the tuna’s muscles. The circulation of blood in fish is simple. The heart only has two chambers‚ in contrast to our heart

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    12 Biology Gas Exchange

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    called the humus. The worm increases the soil fertility by excreting the leaf litter. The worm has an external gas exchange system which is their skin‚ as they have no internal organs. The worm breathes through its skin as you can see in fig3 in the annotated diagram. The worm’s supply of gas is diffusion through the worms skin and the worm also has an open circulatory system which contains haemoglobin‚ haemoglobin carries oxygen around the body. Red haemoglobin present in worms which is used to transport

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    HISTORY OF THE CIRCULATORY SYSTEM: DISCOVERY OF THE BASICS The most basic principles of the Circulatory system took thousands of years to uncover. An Egyptian papyrus dating back to 1500BC correctly correlated the character and frequency of the pulse with the patient’s health status. Hippocrates (460-355BC) and his pupils also drew accurate conclusions regarding the nature of blood flow. The goal of this review is to examine the events that led to discovery of blood circulation. The Ancient Greeks

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    Long Lab Report Blackworm

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    Heart rate in black worms with and without added glucose Introduction: The circulatory system is important in circulating blood‚ nutrients‚ oxygen and chemicals to the body. A circulatory system commonly consists of the fluid it contains‚ such as blood‚ a pumping vessel such as a heart‚ and the vessels‚ which carry the fluid through the body. In a closed circulatory system‚ the fluid‚ blood‚ is contained within the vessels as it circulates through the body. The Lumbriculus variegates‚ or

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    Body Systems

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    Body Systems Intergumentary- The integumentary system consists of the skin‚ hair‚ nails‚ glands‚ and nerves. The main function is to act as a barrier to protect the body from the outside. It also retains body fluids‚ protects against disease‚ eliminate waste products‚ and regulates the body temperature. Cardio Vascular- The cardiovascular system carries blood‚ oxygen‚ and nutrients to organs and tissues of the body. It also carries waste and carbon dioxide from these tissues for removal from

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