Circulatory System
"Cheetahs are specifically built the way that they are built, having a narrow waist and deep chest along with large nostrils that allow oxygen to enter, which contributes to their status of being the fastest animal on earth." Cheetahs have outsized lungs and hearts connected to a vascular system with muscular arteries and adrenals functions in tandem to circulate oxygen through their blood very efficiently. The main components of the circulatory system are the lungs and the heart. The mammalian heart has four chambers. the right and left ventricles function synchronized pimps which eject blood to the pulmonary and also the systemic arterial trees and down arterioles to capillaries. during this manner, vital organs and their vascular beds are perfused. Small venules and veins return blood to the left and right atria (Li, 1996).
Mammalian hearts have two ventricles. In this respect, they differ from, for instance, amphibian hearts, which have only 1 ventricle called a univentricular pump. What are the benefits of dual ventricular pumps? it's been suggested that evolutionary processes are involved within the functional demand of oxygenation by warm-blooded mammals. it's interesting to notice that even at this stage, structure-function complement is a vital section of the natural design features. The 2 ventricles are
synchronized during cardiac pumping. Although blood pressures are different within the pulmonary and also the systemic arteries, the degree ejected during each contraction, or the stroke volume is the same for the 2 ventricles since the identical amount of blood is circulated. There are two specific things that the cheetah have mastered which made it the sensei of sprinting that it is today. The first adaptation that they have mastered is the ability to obtain extra oxygen than required. The website called "The Functional Athletic Rehabilitation and Movement" aka The Farm, has stated that cheetahs have well adapted to be able to take in in organs to receive oxygen. Cheetahs use this advancement as their way of cooling down due to them not being able to lower body their body temp via sweating. The second adaptation that the cheetah has mastered is their way of using their body functions for taking in oxygen. If you look closely at the cheetah in the video listed above, you'll witness how the thorax undergoes maximum flexion and expansion. Furthermore, you will witness how steady its head is and how panting is irrelevant when sprinting.
To go in-depth in regards to the cheetah's circulatory system, deoxygenated blood first enters the right atrium from the superior vena cava. The superior vena cava basically drains blood from the jugular vein, blood that comes from the brain and the arms. The inferior vena cava basically drains blood from the lower organs and legs.
Additionally, the deoxygenated blood from the heart is drained by the coronary sinus which then enters the right atrium. The deoxygenated blood then enters the right ventricle through a valve called the tricuspid valve. The tricuspid valve, which consists of connective tissue, plays a crucial role in the circulatory system and that is to restrict blood flowing backward. Once the right ventricle is filled, it pumps
the deoxygenated blood through the pulmonary arteries by moving through the pulmonic valve to the lungs where it is oxidized. After the blood leaves the pulmonary arteries, the pulmonic valve closes so that blood doesn't flow back. The oxygenated blood then enters the left atrium via the pulmonary veins. The oxygenated blood then passes along the bicuspid valve to the left ventricle where the oxygenated blood is pumped out through the aorta, which has a critical of delivering blood to the muscles and organs. The semilunar valve then closes so that the blood in the aorta doesn't flow backward. This system of pumping, double circulation, is very efficient when it comes to organs and muscle receiving the right nutrition in order to perform the function that it does, and so because of that, cheetahs have adopted this closed circulatory system rather than open circulatory system which have been depected as a badly designed system due to the need of sufficient tissue perfusion (McMahon, Burnett, 1990).