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An Educational Series to Learn about Heart Health and Heart Diseases by Dr. Vijaiganesh Nagarajan (VJ)
As a cardiologist, I believe the heart is the most important organ in our body and my goal is to spread the basic knowledge about heart diseases to our people. Before we discuss common cardiac diseases, it is essential to have basic knowledge about our heart.
The heart is a muscular organ located in the middle of the chest, more towards the left side. Its major role is to pump blood to all the organs in the body. The heart has 4 chambers, two on the right and two on the left. The top chambers are called ‘atrium’ and bottom chambers are called ‘ventricles’.
Left sided heart chambers do the critical part of pumping blood all over the body, through the largest blood vessel in the body called ‘Aorta’. Blood takes oxygen and nutrients to the tissues and comes back to the heart through ‘veins’. When blood comes back to right side of the heart, it lacks oxygen, as it got absorbed. To regain oxygen, right side of heart pumps blood into the lungs where it gets oxygenated before it reaches the left side. Then the cycle continues…… for life.
The heart is also a muscle that needs oxygen and nutrients. It gets them through small arteries called ‘coronary arteries’ which supply blood to the heart. There are three major coronary arteries on all our hearts. When any one of these arteries gets blocked, people develop a ‘heart attack’. There are also ‘valves’ within the heart to direct the blood, but which will be discussed in detail in another section.
For the heart to beat constantly throughout life it needs a generator which can never fail; this is called the ‘SA Node’. Then electricity spreads through different circuits to reach all parts of the heart. These electric signals are picked and amplified by the ‘electrocardiogram’ which is commonly called as ‘EKG or ECG’.
Dr. Vijaiganesh Nagarajan is currently accepting patients.
Call today to schedule an appointment
1601 Main Street Ste. 502
Richmond, TX 77469
Posted by Dr. James Pearce, M.D.
We all dream of the perfect night sleep and waking up fully restored and ready to face the following day. Sleep is as important to your health as a balanced diet and regular exercise. It can affect you both physically and mentally. However, as many as 40% of adults experience insomnia each year with the direct cost of treatment as well as indirect cost (including lost productivity) adding up to $30-$35 billion annually. One in ten American adults experience chronic or persistent insomnia.
Posted by Dr. Margaret Umah, M.D.- Family Physician
Vaccination programs for children have a proven track record. Few of us can remember epidemics of polio, measles, and other often fatal diseases. The overwhelming majority of young children receive the CDC recommended immunizations. However, the adult population often remains under-immunized. This may occur because many adults do not know that they would benefit from vaccines. While the adult vaccine schedule does not have as many immunizations as the child schedule, there are several vaccines that adults can benefit from to optimize their health.