What is Cardiology

Cardiovascular HeartThe cardiovascular system encompasses the heart, blood vessels and nearly 5 liters of blood, that is constantly moved throughout the  blood viens, and vessels.

Its primary responsibility is transporting oxygen, hormones and nutrients, throughout the the body. The heart, which is the size of a closed fist, must pump over 5 liters of blood throughout the body every minute.

Cardiology is a medical discipline focused on dealing with heart disorders. This field of medicine includes diagnosis and the treatment of  electrocardiography congenital heart defects, heart failure and  valvular heart disease. Cardiology is an internal medicine. Doctors who specialize in this field are called cardiologist. Cardiologist in the United States usually requires a three year residency in internal medicine, then a cardiology fellowship for three years. Within Cardiology there are sub-specialties as well. There are several recognized specialties in the U.S medical community.

Electrocardiography – looking at mechanical and physical through the use of ultrasound.

Interventional Cardiology – Ischemic and structural heart diseases are treated using catheters.

Nuclear Cardiology – Uses nuclear medicine to  understand isotope intake within the heart using radioactive tools and methods.

Cardiac electrophysiology – This studies the electrical properties and conduction of heart diseases.

The main focus of cardiology is heart and its many anatomic features. These features include ventricles, heart valves and ventricles and numerous physiological features such as: heart sounds and systoles and after loads. There are many disorders that lead to cardiovascular diseases . In 29.34  Cardiovascular disease caused 30% of the deaths. The hearts primary function is pump blood throughout the  body. Through systemic circulation, and through pulmonary circulation via the lungs. The heart affects every part of the body. In Systemic circulation, highly oxygenated blood is carried form the left side of the heart to all of the tissues and organs of the body.The pulmonary circulation transports de-oxygenated blood form the right side of the heart to the longs. The blood then picks up oxygen from the lungs. The heart powers the entire circulation process. Much of cardiology has been focused on what is needed to maintain a healthy heart. Now cardiology studies heart disorders and how to restore the heart from the impact of these disorders.

Basically, the heart is a muscle. that pumps blood through the body, through squeezing it. Every part of the heart can potential fail or malfunction. The heart can be categorized in two different parts: electrical and mechanical.

Coronary_arteriesThe electrical portion of the heart is focused on squeezing or periodic contraction of muscle cells. These actions are powered by the cardiac pacemaker in the senatorial node. The electrical components are researched in the field of electrophysiology or cardiac electrophysicolgy with the use of electrocardiogram(ECG/EKG) .With physiology an action potential is a short lasting event in which the  electrical membrane  potential rises and fails. The natural pacemaker actions propagate a pattern of the heart. There are multiple dysfunctional such as Wolff-Parkinson-White syndrome, heart block, ventricular fibrillation.

The mechanical component of the heart is focused on the fludic movement of blood as it is pumped throughout the cardiovascular system. The mechanical function of the heart is what leads to many of the disorders that disrupt the ability to move blood throughout the body.

The Cardiovascular system anatomy is complex. The heart is  is muscle that is located medial to the lungs along the midline of the body, within the thoracic region. The bottom of the heart is known as the apex and turned to the left. This means that 2/3 of the heart is located in the body’s left and the 1/3 is located on the right.


Health Life Media Team