The main function of the heart is to pump blood throughout the body. Both giraffes and humans have two cardiovascular systems. The pulmonary circulation is a short loop from the heart to the lungs and back again, and the systemic circulation sends blood from the heart to all other parts of our body and back again.
What's special about the giraffe's heart?
The giraffe's heart weighs about 11 kg, which is the largest among land mammals. It can pump 60 liters of blood per minute around the body at twice the blood pressure of the average human.
Why do giraffes have a stronger heart than humans?
This problem is overcome by a series of one-way valves that push blood toward the head. .. The blood pressure of giraffes is very high (280/180 mm Hg), which is twice that of humans, as mentioned above. In addition, the heart beats up to 170 times per minute. It is twice the human heart rate. 13 сент. 2019
What is the giraffe's heart?
The giraffe's heart weighs an average of 11 kilograms and is composed of two halves, right and left (like all mammals), each of which is responsible for moving blood around the body. I will do it. The right ventricle of the heart only needs to pump blood at a relatively short distance to the lungs.
How big is the giraffe's heart compared to humans?
According to the San Diego Zoo, the giraffe's heart is 2 feet (0.6 m) long and weighs about 25 pounds. (11kg). Their lungs can hold 12 gallons (55 liters) of air. By comparison, the average total lung volume in humans is 1.59 gallons (6 liters).