THE HEART WORKS AS A WHOLE. One part cannot be more important than another.
The pulmonary vein is the most important vein found in the heart because it brings oxygenated blood from the lungs into the left atrium.
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.
It is most common that a persons FIRST heart attack is a fatal heart attack! Only a small minority of people who have a heart attack survive to have another, and a very few will have multiple heart attacks before they have a fatal one. As such, it is very important that we make lifestyle choices while we are young that will reduce the lilihood of a heart attack when we are older.
Heart rate to burn the most fat
Mitochondrion
The organelle carries out most jobs needed in the cell. Often, the nucleus is the biggest organelle in a cell.
It is not most important. But it is vital
The nucleus is typically the structure in an animal cell with the largest volume. It houses the genetic material of the cell and is responsible for regulating gene expression and controlling cell functions.
Endoplasmic reticulum is most important passageway throughout cell from plasma membrane to nuclear envelop and vice versa .
The most important cells are the cardiac muscles cells that do the pumping.
The Nucleus
the nucleolus
The cell membrane.
The neucleus and neucleolus because it's where DNA is retained and is where DNA undergoes the first steps of protien synthesis which is essential for life. As well as this without this organelle there'd be no-where to 'house' our DNA and without the genes in the DNA you, me and everyone wouldn't exist and neither would this question.
The organelle most important for respiration is the mitochondria. Mitochondria are often referred to as the powerhouse of the cell because they are responsible for producing the energy currency of the cell, ATP, through the process of cellular respiration.
The nucleus is the most obvious organelle in any eukaryotic cell.