human hart video with all useful information
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https://youtu.be/UEGQhC-yYCI
Human heart is made up of cardiac muscles.. it's a muscular organ which pumps the blood throughout the border through Aorta i.em largest artery in the body. It is covered by pericardial membrane and it's weight is about 360 grams. It has size about our fist. It has four chambers to avoid mixing of deoxygenated blood and oxygenated blood in the heart. Upper chamber is called atrium (plural atria) and lower chamber is called ventricle (plural ventricles).
Heart also has nervous system but it is automatic. It doesn't need any external signal to activate. It starts from SA node.
Plzz watch that video
Human heart is made up of cardiac muscles.. it's a muscular organ which pumps the blood throughout the border through Aorta i.em largest artery in the body. It is covered by pericardial membrane and it's weight is about 360 grams. It has size about our fist. It has four chambers to avoid mixing of deoxygenated blood and oxygenated blood in the heart. Upper chamber is called atrium (plural atria) and lower chamber is called ventricle (plural ventricles).
Heart also has nervous system but it is automatic. It doesn't need any external signal to activate. It starts from SA node.
Plzz watch that video
mangeshraje:
a good help is given by you thanks
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