Reproduction and Birth. Heart and Circulatory System. Sounds like a recipe for stumbles. When a giraffe breathes oxygen into the body, the air travels down the trachea and into the lungs. ADVANTAGES OF A LONG NECK Feeding: enables giraffes to eat food that other animals cannot reach. The human heart weighs about 0.6 pounds (0.3 kilograms), but a giraffe's weighs about 26 pounds (12 kg), since the organ needs to be powerful enough to pump blood up the animal's long neck. Comparative anatomy of giraffe's and humans cardiovascular system The Cardiovascular System Four-chamber heart Giraffes and humans both have a four chamber heart which allows us to send our de-oxygenated blood to the cleaners-the lungs-and our oxygenated blood to the rest of the To keep up with this unique anatomy the giraffe also has a very unusual circulatory system. A giraffe heart can measure up to 2 feet long, weighs about 21.5 pounds and beats approximately 150 times per minute. The circulatory system of the giraffe has several adaptations for its great height. In 1954, Goetz and Budtz-Olsen succeeded in measuring the arterial blood pressure in a standing, unanesthetize1'2 Id giraffe.n this animal, approximately 13 feet tall, the carotid A giraffe nerve, however, takes 13.4 ms to start its response, and that nerve impulse travels just 165 feet per second. Giraffes have long necks which means that their heart must work very hard to pump the blood up the neck to the brain. The circulatory system in giraffes has also adapted to cater for their long necks. Its heart, which can weigh more than 11 kg (25 lb) and measures about 60 cm (2 ft) long, must generate approximately double the blood pressure required for a human to maintain blood flow to the brain. A series of special one-way valves in the neck regulates blood flow, and there is a special net of elastic blood vessels at the base of the brain. Circulatory System Giraffes have one of the most powerful hearts of all mammals weighing approximately 24 pounds and measuring 2 feet long! When a giraffe breathes out, carbon dioxide is released into the air. It has up to 2 feet long and weighs about 24 pounds and can pump 16 to 20 gallons of blood per minute, a size necessary to … The lungs fill up with oxygen, and the giraffe's circulatory system takes this much-needed gas to the rest of the giraffe's body. A giraffe's heart must be quite large (it is over 24 lbs) to pump blood to the giraffe's head. Their blood pressure is twice that of a human. The Circulatory Adaptations Giraffes Have To Accommodate Their Unique Structures Longer necks also mean a number of changes to the circulatory system would need to occur to avoid large masses of blood in one area of the body and very little in the brain or vise versa and to. Those two effects combined mean a giraffe can take up to 100 ms to sense and respond to something in the outside world---about half the time that a galloping giraffe’s foot is on the ground! But this study is the first to unravel the true nature of the giraffe heart and cardiovascular system. Prezi. Vigilance: communication with other giraffes by sight and seeing predators from a distance. THE long neck of the giraffe presents a unique problem in the regulation of the systemic arterial blood pressure and in the maintenance of the cerebral circulation. There’s no taller animal on Earth than the giraffe: A full-grown male, or bull, may stand 18 feet above the ground. The heart of giraffes is another singularity in the animal world. For example, in order to maintain blood flow to the brain, a giraffe’s heart must generate a blood pressure double that required in humans. Giraffes have long necks which means that their heart must work very hard to pump blood to giraffe! 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