all of them are pretty vital, i would say the brain is the most vital because you cant get a brain transplant and its damages are irreversible, its also the most sensitive to oxygen deprivation.
most doctors say that its the size of your clenched fist
The word heart is a noun, a singular, common noun; a concrete noun as a word for an organ of the body; an abstract noun as a word for the central, most important part or the center of a person's thoughts and emotions.
The importance of the heart to the human body, is, simply saying: life maintaining organ which pumps and circulate the oxygented blood through out our body. main function is homeostasis, that maintenance of internal environment with the help of certain hormones like adrenalin. it provides both central and peripheral circulation by which it provides nutrition to all the cells of the body.
the 2 chambers of the heart are: 1. atrium 2. ventricle
The term most often used is infarction for a complete lack of blood flow to a particular organ (most often used when referring to a muscle such as the heart or skeletal muscle), or ischaemia for severely reduced blood flow. If you are simply referring to a reduced amount of oxygen then tissue hypoxia may apply.
Heart
your heart the most major organ
heart
It helps protect some of our most vital organs such as our heart and lungs.
The brain is the most important organ in the body as there is no device/implant that can replicate the tasks it performs. There is no way as of yet to even successfully transplant a brain The heart and lungs are also vital, if they don't work you die in minutes. Many other organs are also vital, for instance the liver and kidneys. We are complex organisms and all our body parts work together to keep us functioning.
The human heart provides a continuous blood circulation through the cardiac cycle and is one of the most vital organs in the human body.
The brain is the organ in the human body that uses the most energy.
The vital cavity refers to the main body cavity where most vital organs are housed, such as the heart, lungs, and digestive organs. It is also known as the thoracic and abdominal cavities. These cavities protect and support organ function within the body.
The liver is the most heaviest organ in the human body; It is also the largest internal organ.
The largest organ in the human body is the skin.
The most vital is the central nervous system and the axial skeleton. After that the heart in lungs would also be important. This can be deduced from the fact that they are the most protected parts of the body, surrounded by bone and bony structures.
The Heart