Blood Flow Through the Heart | Electrocardiogram | Heart Sounds

Blood Flow Through the Heart 

 

Blood Flow Through the Heart is Deoxygenated blood returning from the body first enters the heart from the superior and inferior vena cava through which Blood Flow Through the Heart. The blood enters the right atrium and is pumped through the  tricuspid valve into the right ventricle. From the right ventricle, the blood is pumped through the pulmonary semilunar valve into the pulmonary arteries. The pulmonary artery carries blood to the lungs where it releases carbon dioxide and absorbs oxygen. The blood in the lungs returns to the heart through the pulmonary veins. From the pulmonary veins, blood enters the heart again in the left atrium. The left atrium contracts to pump blood through the bicuspid (mitral) valve into the left ventricle. The left ventricle pumps blood through the aortic semilunar valve into the aorta. From the aorta, blood enters into systemic circulation throughout the body tissues until it returns to the heart via the vena cava and the cycle repeats.

What Is Electrocardiogram ?

The electrocardiogram (also known as an EKG or ECG) is a non-invasive device that measures and monitors the electrical activity of the heart through the skin. The ECG produces a distinctive waveform in response to the electrical changes taking place within
the heart. The first part of the wave, called the P wave, is a small increase in voltage of about 0.1 mV that corresponds to the depolarization of the atria during atrial systole. The next part of the EKG wave is the QRS complex which features a small drop in voltage (Q) a large voltage peak (R) and another small drop in voltage (S). The QRS
complex corresponds to the depolarization of the ventricles during ventricular systole.
The atria also repolarize during the QRS complex, but have almost no effect on the
EKG because they are so much smaller than the ventricles The final part of the EKG wave is the T wave, a small peak that follows the QRS complex. The T wave represents the ventricular repolarization during the relaxation phase of the cardiac cycle.
Variations in the waveform and distance between the waves of the EKG can be used clinically to diagnose the effects of heart attacks, congenital heart problems, and electrolyte imbalances.

What Does Heart Sounds ?

The sounds of a normal heartbeat are known as “lubb” and “dupp” and are caused by blood pushing on the valves of the heart. The “lubb” sound comes first in the
heartbeat and is the longer of the two heart sounds. The “lubb” sound is produced by
the closing of the AV valves at the beginning of ventricular systole. During a normal heartbeat, these sounds repeat in a regular pattern of lubb-dupp-pause. Any
additional sounds such as liquid rushing or gurgling indicate a structure problem in the
heart. The most likely causes of these extraneous sounds are defects in the atrial
or ventricular septum or leakage in the valves.

 

Anatomy Of Heart🫀 FAQ

The Tricuspid Valve (Between Right Atrium And Right Ventricle ) and Mitral valve (Between Left Atrium And Left Ventricle ) Aortic Valve In The Aorta And Pulmonic valve in Pulmonary artery prevent the blood flow backwards . See heart diagram For Better Understanding Cardiovascular System | Anatomy of the Heart
The Heart consist of blood which is purified, as the blood reaches the heart through Arteries And Veins under high pressure ,thus inorder to maintain the pressure inside the heart so that it beats with normal proper rhythum and pump and supply blood to the entire body thus human cardiovascular system is considered closed.
The sounds of a normal heartbeat are known as “lubb” and “dupp” and are caused by blood pushing on the valves of the heart. The “lubb” sound comes first in the heartbeat and is the longer of the two heart sounds. The “lubb” sound is produced by the closing of the AV valves at the beginning of ventricular systole.
Capillaries consist of thin walls that allow oxygen, nutrients, waste products and carbon dioxide to pass through and from in the cardiovascular (heart) system of humans
The main function of the cardiovascular system is to purify Impure blood (carbon dioxide ) to Rich Pure Oxygenated Blood And To Supply the oxygenated rich blood to the tissues ,organs ,brain and whole body for normal body functioning.
By performing any exercising or workout the level of oxygen demand increases in the body so inorder to meet the required demand of oxygen the breathing level increases thus making the heart beat faster inorder to pump more and more pure oxygenated blood to meet the oxygen demand in the body
The electrocardiogram (also known as an EKG or ECG) is a non-invasive device that measures and monitors the electrical activity of the heart through the skin. The ECG produces a distinctive waveform in response to the electrical changes taking place within the heart.
The sounds of a normal heartbeat are known as “lubb” and “dupp” and are caused by blood pushing on the valves of the heart. The “lubb” sound comes first in the heartbeat and is the longer of the two heart sounds. The “lubb” sound is produced by the closing of the AV valves at the beginning of ventricular systole.
It Represents the electrical depolarization of the atria ,this originates from the sinoatrial node (SA node) in heart

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