2006-10-08 21:25:06 · 22 answers · asked by eniyan 1 in Science & Mathematics ➔ Medicine
brain
constant activity, gathering information, giving out commands ... to every part of our body . . .
quoting from wikipedia,
The human brain is believed to be the source of the conscious, cognitive mind. The mind is the set of cognitive processes related to perception, interpretation, imagination, and memories, of which a person may or may not be aware. Beyond cognitive functions, the brain regulates autonomic processes related to essential body functions such as respiration and heartbeat.
Extended neocortical capacity allows humans some control over emotional behavior, but neural pathways between emotive centers of the brain stem and cerebral motor control areas are shorter than those connecting complex cognitive areas in the neocortex with incoming sensory information from the brain stem. Powerful emotional pathways can modulate spontaneous emotive expression regardless of attempts at cerebral self-control. Emotive stability in humans is associated with planning, experience, and an environment that is both stable and stimulating.
>> no other organ is so damn complex, so so damn busy & yet so little understood !
2006-10-08 21:26:08 · answer #1 · answered by sεαη 7 · 2⤊ 1⤋
This question is nonsense unless you indicate what you mean by active. Most organs function continuously at varying levels throughout our lives, in particular:-
Brain
Heart
Lungs
Guts
Kidneys
Liver
If you mean by the amount of energy used relative to mass then the brain is the most active, followed by the liver and the heart.
The level of activity (however defined) varies enormously depending on what we are doing at the time:-
During a marathon race the heart, lungs and leg muscles would be very active whilst the guts would virtually stop as the blood is channelled to the actively-respiring organs.
After a heavy meal the guts and liver would be more active while the heart, lungs and limb muscles would be just ticking over.
2006-10-08 21:27:54 · answer #2 · answered by Anonymous · 2⤊ 1⤋
Brain. You're giving me a headache with this question. My poor brain not only has to be a battery, but a processor as well.
Second to that, my heart. It really can't miss a beat.
When I was younger, there was another organ just as active. It competed with my brain. Fortunately it lost. Kinda, sort-of.
So I'll call it for the brain. An amazing parallel processor, that is, for humans, still mis-underestimated.
2006-10-08 21:34:35 · answer #3 · answered by Boomer Wisdom 7 · 0⤊ 0⤋
Its not pre programmed at some point in the distant past there may have been a set of neanderthals who developed earlier. but they were not strong enough to protect thier offspring so they all died out. many people make the mistake of thinking human development is too perfect and must have therefore been designed. But remember there were many species of neanderthal whos development cycles or some other body function worked differently and for somreason we (homo erectus) had the best bodies for survival. Survival of the fittest For the one strain of a species whos bodies and brains survived There were hundreds who were not fit for survival to simplify we are the giraffe with the long neck which could reach the food while the other giraffes couldnt so we carried on the lline. in one sentance we develop in this way because if we didnt we wuld have all been killed thousands of years ago. oh also our DNA has the programme for when this happens to us
2016-03-18 06:57:42 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Depends on what does "most active" mean, for you.
Mechanically: Heart starts pumping while we're still in uterus.
Goverment: Brain has to coordinate our body functions, all the time. Has to think for us. But he sleeps occasionally.
Creation: Our skin and mucous surfaces are regenerating all the time. They create new cells over, and over, and over again.
2006-10-08 21:34:51 · answer #5 · answered by dragonfly140 3 · 1⤊ 0⤋
brain first, heart next
The brain requires a significant proportion of the oxygen we breath to survive. Proof of how active it is.
2006-10-09 02:03:22 · answer #6 · answered by MrSandman 5 · 0⤊ 0⤋
Please clarify the use of the word Active.
The brain or Heart would have to be up there in the top 3.
2006-10-08 21:26:37 · answer #7 · answered by stephens_75 2 · 0⤊ 0⤋
Except for the Brain I would say the skin its the largest organ.
2006-10-08 21:28:03 · answer #8 · answered by timex846 3 · 0⤊ 1⤋
its actually the brain. its not the heart, because in during every heartbeat, the heart gets about 0.5 seconds rest, so if u totalled the amount of work and rest of the heart , they would be proportionate. so the heart takes rest whereas the brain does not, it only slows down its work during sleep, but never takes rest.
2006-10-08 21:34:25 · answer #9 · answered by muradak_1 2 · 1⤊ 0⤋
Brain, even active during sleep.
2006-10-08 21:26:57 · answer #10 · answered by Anonymous · 1⤊ 1⤋