The heart, which is the main organ of the cardiovascular system, is responsible for the life of every person. Know how it works and why it is important to be cared for.
The Cardiovascular System
The heart is one of the most important organs that transport oxygen, nutrients, hormones and heat to every cell in the body. The heart also removes CO2, metabolic wastes and excess heat from every cell of the body. Using pumps as a way of doing the said processes, the heart has 4 chambers that contain the blood. The other 2 chambers are called the left and right Atrium. The left and right ventricle is divided by a wall called the septum. This wall has an opening called the foramen ovalis, which enables the blood to pass through from the right ventricle to the left without the need of passing through the lungs. Above the two chambers, we can find the right and left atrium which is divided by valves. The right contains the tricuspid valve and the left chamber holds the mitral valve. The entering blood passes through the pulmonary veins, and the superior and inferior vena cavae.
The pulmonary vein brings blood from the lungs, as the name implies. The superior and inferior vena cavae drain the blood from the arms, head, neck, and thorax. When the atrium receives the blood, it forces the blood to go to the ventricles. The valves remain open to ensure a continuous flow or movement of blood from the veins through the atria into the ventricles. As the ventricles fill with blood, the tricuspid and the mitral valves begin to close. The muscles of the atria begin to contract to force all the blood in it into the ventricles. For a brief or short time the atria has no blood, since the pressure within them is greater than the pressure in the veins delivering the blood. As the Ventricles are filled with blood, they begin to expand or swell, and then a wave of contraction begins to take place.
Beginning from the lower or apex of the heart, it moves its way to the atria. In the process, the contraction forces the atrioventricular valves to close, and then forces the blood out of the ventricles into either the aorta or the pulmonary artery. The blood from the right ventricle goes to the pulmonary artery and exchanges its CO2 into Oxygen.
The blood which has fresh oxygen in it returns to the heart entering the left ventricle. When it finds it way inside the left atria, it then goes to the left ventricle, passing through the mitral valve and now forced to enter the aorta. The aorta then delivers blood all over the body except the lungs, which has its own job of replenishing the oxygen content of the blood before circulation. In order to contain the blood without swelling to a great degree, the lower edges of the valves anchor to the chorda tendinea, a tendon.
The lower edges of the said tendons are attached to the papillary muscles found in the walls of the ventricles. The atrioventricular valves are then prevented from bulging to any great degree as the ventricles contract. When the blood leaves the ventricle, passes through the semilunar valve in to the pulmonary artery. These valves are fixed on to the side of the artery which closes when pressure in the ventricles is lowered to prevent blood from the pulmonary artery to find its way back to the ventricles. A similar valve is also mounted on to the sides of the aorta, which has basically the same job.
The Relation of the Cardiovascular System to the Nervous System
Your heart and blood vessels are connected to the brain, the central nervous system. The vagus nerve and the autonomic nervous system are major attachments. The vagus nerve, one of the twelve cranial nerves, extends from the brainstem to the abdomen via the different organs including the heart, lungs and esophagus. The vagus is part of the involuntary nervous system, one of the important functions of which, is to command unconscious body procedures, including keeping the heart rate constant. The autonomic nervous system regulates the functions of our internal organs such as the heart, stomach and intestines. It is responsible for involuntary and reflexive functions such as changing the size of the blood vessels or making the heart beat faster. These nerves control heat rate and blood pressure, two essential factors for a healthy heart.
The goal of chiropractic care goal is to have a healthy nervous system. The positive impact of chiropractic care to the heart is tremendous and obvious. Chiropractic care benefits not just your heart, but practically all your systems and organs since the nervous system where chiropractic is anchored in, touches every cell in your body. The nerves travel through the spine, which is why it is described as the communication pathway of the nervous system. An abnormality in the bones in your spine can cause symptoms and disease to occur in your body.
A regular chiropractic check is highly recommended not just by doctors of chiropractic but by the millions who have received the benefits of chiropractic care. It is good for your heart and your health.