But the symbolic height that has evolved over 7 million years the arteries above the heart are muscular and elastic, pumping blood against gravity
What is the adaptation of Kirin's heart strength?
The giraffe's heart has evolved so that the muscle walls are thick and the radius is small, giving great power. As the giraffe's neck gets longer, the walls of the blood vessels also get thicker, preventing them from rupturing due to increased pressure. 2009
How does a giraffe overcome the excessive hydrostatic pressure of the blood vessels that descend to the legs?
And to compensate for high blood pressure, blood vessels contract and dilate to maintain volume. Giraffes wear natural compression socks on the neck and legs in the form of very tight skin. This causes blood to continue to return to the heart instead of collecting in the feet.
Why is the giraffe's blood pressure so high?
Kirin has a high head and, in the case of an adult, rises about 6 m (19 feet) above the ground, resulting in high blood pressure. This is a long and long way for the heart to pump blood against gravity.
What is the uniqueness of the giraffe's heart?
The giraffe's heart has evolved to have a thick muscular wall and a small radius, giving it great power to overcome this pressure. The thickness of the muscle wall is almost directly related to the length of the neck. For every 15 cm of neck length, the left ventricular wall adds an additional 0.5 cm of thickness. 2019г.
Below you will find two helpful answers on a similar topic. 👇
What do ocelots look like?What can I write about a rabbit?
