Question

Heart structure and its function

Answer 1

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Here is ur answer
The Heart is pumping organ of our body. Human heart has four chambers. TOP TWO chambers are called ATRIUM. BOTTOM TWO chambers are called ventricles .
Atriums are further divide into left and right atirum and ventricles also further divide into left and right ventricle.
Septum is a wall which divide the left and right part of heart.
Valves ensures that the blood does not flows backwards.
Throgh the lungs oxygenated blood comes to heart to pump in the whole body. Oxygenated blood enters in the left atrium through pulmonary veins. After left atrium the oxygenated blood enters in the left ventricle. The blood exit from left ventricle and enters to the body cells through aorta. There is diffusion in the body cells between O2 and CO2. The body cells absorb oxygen from blood. CO2 gets diffuse from from the body cells and enters in the blood stream. Now the blood is deoxygenated. The deoxygenated blood enters in the heart from body through VenaCava. Then this deoxygenated blood enters in the right atrium to right ventricle and exit the heart through pulmonary artery.
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Answer 2

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     HEART STRUCTURE AND FUNCTION
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 STRUCTURE OF HEART:-

      Internally the heart is divided into four parts by grooves.

  there are two parts,1.Upper part 
                                 2.lower part
   upper parts are called --->atria 
   lower part is called ------->ventricles 
the two atrias are separated from each other by inter-atriolar septum and the right and the left ventricles are separated fro each other by inter - ventricular septum.
the inter-atriolar septum and inter-ventricularseptum prevent the mixing of deoxygenated blood in the right side of the heart with oxygenated blood in the left side of the heart.
the walls of the ventricles are relatevelyy thicker than atrial walls.the largest artery is the arota and the pulmonary artery that rises from theright ventricle carries the deoxygenated blood to lungs
the right atrium and the right ventricle are connected to each other by right atrioventricular and the left atruim and ventricle are connected to each other by left atrioventricular.

          blood from the lower portion is carried by the inferior venacava and blood from upper parts is carried by superior venacava.

          

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