Question

what is structure of heart​

Answer 1

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=> Heart is present between the lungs in thoracic cavity slightly tilted to left.

=> Human heart is four-chambered ,i.e.

=> two Auricles and two ventricles each separated by septum.

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=> Human heart is four-chambered,i.e.

=> it has four different chambers which are meant to prevent the mixing of oxygenated and deoxygenated blood.

The different chambers of the hearts are as follows :

▪AURICLES ( upper chamber) : There are 2 AURICLES or atria, i.e. left and right , separated by an interauricular septum.

▪ VENTRICLES (lower chamber ) The two inferior chambers of the heart are right and left ventricle separated by an interventricular septum.

Membranes in heart:-

The peracardium is a thin membrane that encloses the heart and the Base of the great vessels of the heart(aorta,vena cava, pulmonary artery and pulmonary vein).

There are 4 valves present in heart -

▪The mitral valve and tricuspid valve which controls the blood from atria to the ventricles.

▪The aortic valve and pulmonary valve which controls blood flow out of the ventricles .

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Answer 2

Answer:

The heart is divided into four chambers consisting of two atria and two ventricles; the atria receive blood, while the ventricles pump blood. ... The heart is composed of three layers: the epicardium (outer layer), the myocardium (middle layer), and the endocardium (inner layer).