The heart...
begins beating 4 weeks after conception
is a large muscular organ
consists of 4 chambers and 4 valves
contracts at least once a second to pump blood throughout our bodies
pumps 50 MILLION gallons of blood in an average lifetime
is part of a system so intricate that the slightest variation can lead to death
Excerpt from textbook:
On a molecular level, an elegant and intricate system allows the heart to contract tirelessly, approximately 100,000 times each day. The electrical impulse from the SA node changes the permeability of the myocardial cell membrane.... Potassium ions leave the cell, but sodium ions in the extracellular fluid rush into the cell, followed more slowly by the calcium ions. This gives the intracellular fluid a positive charge, which triggers the release of calcium ions stored inside the cell. The calcium cause the myocardial cell to contract. As one myocardial cell depolarizes, it triggers the next myocardial cell to do the same. So that the contraction does not continue indefinitely , tiny molecular pumps move potassium and sodium back to where they were before. This restores the the normal electrical state , and the myocardial cell returns to resting state...The myocardial cell cannot respond to another electrical impulse from the SA node until the full cycle of depolarization and depolarization is complete..... The refractory period is very, very short, and technically the heart could contract again instantly , but this would not allow the enough time for the chambers of the heart to completely fill with blood and eventually the heart would tire. The optimum heart rate allows the heart chambers to completely fill with blood and allows the heart some time to rest between beats. This is the rate set by the SA node...
is a large muscular organ
consists of 4 chambers and 4 valves
contracts at least once a second to pump blood throughout our bodies
pumps 50 MILLION gallons of blood in an average lifetime
is part of a system so intricate that the slightest variation can lead to death
Excerpt from textbook:
On a molecular level, an elegant and intricate system allows the heart to contract tirelessly, approximately 100,000 times each day. The electrical impulse from the SA node changes the permeability of the myocardial cell membrane.... Potassium ions leave the cell, but sodium ions in the extracellular fluid rush into the cell, followed more slowly by the calcium ions. This gives the intracellular fluid a positive charge, which triggers the release of calcium ions stored inside the cell. The calcium cause the myocardial cell to contract. As one myocardial cell depolarizes, it triggers the next myocardial cell to do the same. So that the contraction does not continue indefinitely , tiny molecular pumps move potassium and sodium back to where they were before. This restores the the normal electrical state , and the myocardial cell returns to resting state...The myocardial cell cannot respond to another electrical impulse from the SA node until the full cycle of depolarization and depolarization is complete..... The refractory period is very, very short, and technically the heart could contract again instantly , but this would not allow the enough time for the chambers of the heart to completely fill with blood and eventually the heart would tire. The optimum heart rate allows the heart chambers to completely fill with blood and allows the heart some time to rest between beats. This is the rate set by the SA node...
Whew, are you still with me?
As I was reading over this today, I was struck by the complexity of a process we never think about, but one that is vital for life. Minute actions~~electrical impulses, myocardial contractions, filling of blood and rest periods~~all working together to create ONE heartbeat. A series of actions that repeat over and over, 100,000 times a day, sustaining the entire body.
As I thought about the complexity of this system, as well as all the systems it sustains, I was amazed at the power of God; God who created our bodies to be maintained by systems that work together with such intricate details. Systems that can be devastatingly altered with the slightest deviation.
As I considered the complexity of each aspect of our body, I tried to understand how anyone could NOT believe in the presence of ONE who is greater than ourselves; of an omnipotent God. How some do not have the belief in a God that created us in HIS own image.
Evolutionist portray the creation of man as no more than accidental, random atomic collisions resulting in the formation of some simple form of life with the simple life evolving over the next 3 plus billion years into the plants, animals, and humans we see today.
Random explosions of atoms resulted in ONE LIFE FORM????
Why are there not random explosions of atoms now? Since there are still atoms, should there not still be random explosions? And, if there are atoms exploding, where is an example of the life form created by these explosions? Where is the proof of this?
This single life form than evolved into plants, animals, and humans????
Where are the new species of plants and animals evolving? Where is a new and improved version of man? Why have mothers not evolved to have multiple sets of arms to accomplish all they need to accomplish? Why have we not evolved into a species that does not have disease? Why did evolution stop with man as he is now?
How did ONE life form become an African Violet, a Newfoundland, AND a human? How did the ONE life form know that I needed a heart that beats 100,000 times a day to sustain life, but that a plant needed roots and chlorophyll to thrive? Where did the knowledge of the intricate workings of all living things come from in that ONE life form?
The premises that evolution is based on are riddled with inconsistencies and unproven ideas. It just does not make logical sense.
In the beginning GOD created the heavens and earth....and He saw that it was good.
And GOD said, Let the waters bring forth abundantly the moving creature that hath life, and fowl that may fly above the earth in the open firmament of heaven and God saw that it was good.
And GOD created great whales, and every living creature that moveth, which the waters brought forth abundantly, after their kind, and every winged fowl after his kind: and God saw that it was good.
And GOD made the beast of the earth after his kind, and cattle after their kind, and every thing that creepeth upon the earth after his kind: and God saw that it was good.
So GOD created man in his own image, in the image of God created he him; male and female created he them.
And GOD saw every thing that he had made, and behold, it was very good.
GOD created the heart to bring life sustaining blood to all parts of the body.
And He saw it was good.
The heart consists of a muscle (myocardium) that pumps blood, arteries that supply blood to the heart muscle, and valves to ensure that the blood is pumped in the correct direction. At any point in the pumping process, or in any part of the heart, something can go awry. {chinese-school.netfirms.com/heart-disease-information} ....
Lubb-dupp
Lubb-dupp
Lubb-dupp
An intricate system that could only have been designed by deity; by an all~powerful, all knowing God.
