Question

Refer the above attachment and please help !!

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Answer 1

Answer:

1) left ventricle and right ventricle

Answer 2

$\bold{Answer\;:-}$

i. The two parts which carry :-

Oxygenated blood :-

› Left ventricle - it is thicker than the right ventricle because it has to push oxygenated blood to all the body parts at a much greater pressure.

› Pulmonary vein - it carries oxygenated blood from the lungs to the left atrium of the heart.

› Aorta - artery carries oxygenated blood from the left ventricle to the parts of the body.

› Left auricle - it receives oxygenated blood from the lungs by pulmonary veins.

Deoxygenated blood :-

› Right ventricle - the blood flows from right auricle to the right ventricle why a tricuspid valve which is the deoxygenated.

› Pulmonary artery - it is the only artery which carries deoxygenated blood.

› Vena cava - the superior vena cava brings deoxygenated blood from the head and upper region of the body and the inferior vena cava brings deoxygenated blood from the lower region of the body.

› Right auricle - deoxygenated blood from the body reaches here.

ii. Double circulation : The blood pumped by the right ventricle enters the pulmonary artery, whereas the left ventricle pumps blood into aorta.

The deoxygenated blood pumped into the pulmonary artery is passed on to the lungs from where oxygenated blood is carried by the pulmonary veins into the left atrium. This is pulmonary circulation. The oxygenated blood within the aorta is carried by a network of arteries, capillaries, etc. to the tissues from where the deoxygenated blood is collected by a network of veins, vena cava, etc. and emptied into the right atrium. This is systematic circulation. Thus this is known as the double circulation.

Extra : Heart :-

Mammalian heart is four-chambered, which is enclosed in a pericardium. In between the two layers of pericardium, pericardial cavity is present filled with pericardial fluid. heart has right and left atria divided by a interatrial or interauricular septum and right and left ventricle separated by a interventricular septum. The valve which separates the left atrium from the left ventricle is called the bicuspid valve or mitral valve. The valve which separates the right atrium and the right ventricle is known as tricuspid valve.

$\bold{Hope\;it \; helps\;!}$