The Cardiovascular System: Heart, Blood, And Urinary System

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Cardiovascular system
Our body is organized and connected with all different systems such as cardiovascular system, respiratory system and urinary system. They work together to maintain a healthy condition for normal activity. After one semester learning of physiology and anatomy, I do believe the cardiovascular system is the most unique and crucial system for animals because of its deliberate cooperation with other systems and variety usages for health check.
Cardiovascular system has three important components: heart, blood, and blood vessels. Heart is composed of atrium and ventricle on both sides. The right-hand side of heart forms pulmonary circulation, which pumps deoxygenated blood from body into lungs, and the left-hand side of heart …show more content…

It consists of red blood cells, white blood cells, platelet, plasma, and other components like proteins, glucose, mineral ions and hormones.3 The major component is plasma. It is mainly composed of water and may carry some mineral ions, and hormones. White blood cells are associated with immune response. When a region gets injury and inflammations, neutrophils would first reach the infected regions and more signals will be given. Therefore, the white blood cells would squeeze out of blood vessels and fight with foreign cells. Red blood cells contain hemoglobin. The iron ions in hemoglobin gives the red color for blood and each iron ion can bind to two oxygen molecules so a hemoglobin would bind to eight oxygen …show more content…

Infected mosquito acts as a vector that transfers microfilariae into host’s bloodstream. Microfilariae flows down the blood vessels to the heart through caudal or cranial vena cava and enter the heart. Some of them would further flows through right ventricle to pulmonary artery and finally lodge in lungs. It will develop into mature heartworm and grow in length. Heartworm occupies chambers and blocks pathways. So, dogs that are infected by heartworm may easily get tired after exercise because oxygen cannot flow to exercise body effectively and cells lack the reactant to undergo cell

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