explain exturnal struvture of heart?
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The heart is four chamber organ.
CHAMBERS OF THE HEART -
RIGHT ATRIUM- Right atrium is chamber that is used to carry deoxygenated blood to the right ventricle.RIGHT VENTRICLE- Right ventricle is a chamber that pumps blood to the lung to pick up oxygen and release carbon-dioxyde.LEFT ATRIUM- Left atrium is a chamber that is used to carry oxygenated blood to the left ventricle.LEFT VENTRICLE - Left ventricle is a chamber used to pump oxygenated blood to the whole body.
PULMONARY ARTERY-
Pulmonary artery carries dyoxygenated blood to the lung to make the blood oxygenated .
PULMONARY VEIN - Pulmonary vein carries oxygenated blood to the heart into the left atrium to the left ventricle.
AORTA- Aorta carries oxygenated blood to the whole body.
VALVE-
TRICUSPID VALVE- Sit like door between right atrium and the left atrium when the blood flows from right atrium to the right ventricle it opens when the heart pumps blood the tricuspid valve closes and prevent the blood flowing back right atrium and makes it go through the pulmonary arteryMITRAL VALVE- Sit like door between left atrium and the left ventricle when the blood flows from left atrium to the left ventricle it opens when the heart pumps blood the mitral valve closes and prevent the blood flowing back left atrium and makes it go through the aortaAORTIC VALVE- When the left ventricle pumps blood through the aorta some of it will fall down due to gravity aortic valve closes and prevent that from happeningPULMONARY VALVE - When the right ventricle pumps blood through the pulmonary artery some of it will fall down due to gravity pulmonary valve closes and prevent that from happening.
IN SHORT- THE BLOOD FLOWS FROM THE RIGHT ATRIUM AND FLOWS IN RIGHT VENTRICLE AND THE TRICUSPID VALVE CLOSES AND THE PULMONARY VALVE OPENS AND LET THE BLOOD FLOW THROUGH THE PULMONARY ARTERY AND PICK UP OXYGEN AND RELEASE CARBON DIOXYDE AND GET BACK TO THE HEART THROUGH THE PULMONARY VEIN AND GET INTO THE LEFT ATRIUM AND MITRAL VALVE OPEN AND ALLOW THE BLOOD TO GET INTO LEFT VENTRICLE AND THE MITRAL VALVE CLOSES AND THE AORTIC VALVE OPENS AND ALLOWS THE BLOOD GO TO THE BODY AND AGAIN AND AGAIN TILL YOU DIE.
CHAMBERS OF THE HEART -
RIGHT ATRIUM- Right atrium is chamber that is used to carry deoxygenated blood to the right ventricle.RIGHT VENTRICLE- Right ventricle is a chamber that pumps blood to the lung to pick up oxygen and release carbon-dioxyde.LEFT ATRIUM- Left atrium is a chamber that is used to carry oxygenated blood to the left ventricle.LEFT VENTRICLE - Left ventricle is a chamber used to pump oxygenated blood to the whole body.
PULMONARY ARTERY-
Pulmonary artery carries dyoxygenated blood to the lung to make the blood oxygenated .
PULMONARY VEIN - Pulmonary vein carries oxygenated blood to the heart into the left atrium to the left ventricle.
AORTA- Aorta carries oxygenated blood to the whole body.
VALVE-
TRICUSPID VALVE- Sit like door between right atrium and the left atrium when the blood flows from right atrium to the right ventricle it opens when the heart pumps blood the tricuspid valve closes and prevent the blood flowing back right atrium and makes it go through the pulmonary arteryMITRAL VALVE- Sit like door between left atrium and the left ventricle when the blood flows from left atrium to the left ventricle it opens when the heart pumps blood the mitral valve closes and prevent the blood flowing back left atrium and makes it go through the aortaAORTIC VALVE- When the left ventricle pumps blood through the aorta some of it will fall down due to gravity aortic valve closes and prevent that from happeningPULMONARY VALVE - When the right ventricle pumps blood through the pulmonary artery some of it will fall down due to gravity pulmonary valve closes and prevent that from happening.
IN SHORT- THE BLOOD FLOWS FROM THE RIGHT ATRIUM AND FLOWS IN RIGHT VENTRICLE AND THE TRICUSPID VALVE CLOSES AND THE PULMONARY VALVE OPENS AND LET THE BLOOD FLOW THROUGH THE PULMONARY ARTERY AND PICK UP OXYGEN AND RELEASE CARBON DIOXYDE AND GET BACK TO THE HEART THROUGH THE PULMONARY VEIN AND GET INTO THE LEFT ATRIUM AND MITRAL VALVE OPEN AND ALLOW THE BLOOD TO GET INTO LEFT VENTRICLE AND THE MITRAL VALVE CLOSES AND THE AORTIC VALVE OPENS AND ALLOWS THE BLOOD GO TO THE BODY AND AGAIN AND AGAIN TILL YOU DIE.
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