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Brain
The center of our nervous system and daily thoughts, the brain is a complex, magnificent organ. Ask questions about parts of the brain and their functions here.
2,537 Questions
About 10% of your brain ---------------------------------- Actually you use just about all of your brain
How does a jellyfish survive when it does not have a brain or heart?
A jellyfish is made up of mostly of water. 95% of water to be exact.
They survive without blood, a spine, a heart or a brain. Instead they have a nerve 'net' which they use to detect danger, find food, etc.
I believe jellyfish can survive without a heart because it is supported by homeostasis and metabolism. Some animals don't need a heart.
Jelly fish dont have hearts because they dont need them they have no blood and no control over themselves
They live by relying on nerve cells. They use that information to help them move about their surroundings and they sense food or predators. Other sensing organs help them figure out if they are moving up or down, towards light or away from it.
Gold has several uses. It is a popular decorative material used in jewelry (rings, earrings, necklaces, etc.). It is used as a means of storing wealth (gold bullion). It is also a very good electrical conductor which, despite its high cost, is sometimes used in special situations when extremely thin, highly conductive wires are needed. It is very useful in dentistry as well, used for crowns primarily.
What was the role of militarism as a cause of ww1?
The countries were building up their armies and navies to prove they were the most powerful. Because the countries thought that their armies were the best, they felt they did not have to be as careful when dealing with other countries, because they had something to back them up. This led to a lot of disputes which contributed towards WW1.
Why do men like overweight women?
Attractiveness is subjective and dependent on the perception of an individual. People of different ethnicity's, heights, weights and ages are found attractive. There's no such thing as universal beauty.
And don't forget pheromone's!
well, most people think that men only like beer, football and girls with rockin bods and theyd be rite most of the time. but sum men r a lot more deep and like tthings like literature and art and stuff.
One answer from our community:
Demon possession is a very real thing: if a person doesn't believe in demons and therefore demon-possession in the first place then they are a prime candidate for it. You cannot be initially possessed if you don't allow it. You get possessed by inviting demons into your mind in the first place, through things such as ouija boards and (believe it or not) halloween,
Matthew 12
45 Then he goes and takes with him seven other spirits more wicked than himself, and they enter and dwell there; and the last state of that man is worse than the first. So shall it also be with this wicked generation."
Another answer:
You probably do not want to be possessed, but may want to know what could cause you to be possessed so that you can avoid it. Or maybe you are a little fascinated by the unknown.
To get possessed by a demon, or at least to believe that you are possessed by a demon, you must first be a Christian or a Muslim. There is no evidence of an atheist or, for example, a Hindu ever becoming possessed. There are no clear rules for getting possessed, just as there are no clear rules for exorcism, as each denomination that believes in demon possession has its own ideas.
What is certain is that spooky forms of entertainment are just that - entertainment. For example, no one has ever become possessed because of Halloween. In fact there has probably never been a genuine case of possession at all.
You first follow the First and most important commandment of: Love God with your whole heart, mind, spirit and soul. Then you follow through with trust, prayer, and commitment. When you have this in place; you will find that the Holy Spirit will then start providing you with guidance. And as a result of that guidance, you will find the Holy Spirit giving a vision of your future in survive to God. A overall vision of the future will be provided and the specific guidance will be provided through the "still small voice" guidance. But you must be careful to avoid the "powerful voice" which is usually from the ruller of the earth Satan". If you can achieve the proper ballance of listening, reading the Bible and checking things out with a good Christian friend; you will have all the vision you need.
What is the difference between the liquidated damages and the delay penalty?
Liquidated damages as used in the construction industry are damages (monetary) to the owner of the building charged to the builder for delay in completion of the structure in the alloted time.
The opposite of this is the delay clause, which is where the contractor would claim damages against the owner or architect for delaying the construction process by not processing paperwork in a timely manner, or by not answering questions in a timely manner, or by failing to process change order requests.
The Acheley (sp) Formula is used for calculation of the damages due, based on a complicated formula which includes variables such as monthly volume, projected profits, length of delay and other items. I believe the current AIA documents have excluded this by inserting a No Damage for Delay clause.
What part of the brain region is damaged during a hemmorhage?
A haemorrhage can happen anywhere in the brain!
Brain stem which controls breathing and heart rate.
The lower the parts in the brain the more basic the functions the higher in the brain the more complex and evolved the function.
When your brain cells die will it go back to life again?
No. Your brain can create new synapses, but the cells don't regrow. When a sick brain is viewed on a MIR the areas with dead cells show as holes in the brain, but a healthy brain is shown as a healthy blue and whole.
How is the neurotransmitter removed from a synaptic cleft?
Most neurotransmitters are removed by being taken up by the presynaptic or postsynaptic neurones however acetylcholine is the prime exeption to this as is actually destroyed in the synaptic cleft by the enzyme acetylcholinesterase. The reason this must happen is that otherwise the neurotransmitter would be left in the cleft where it would continue to evoke a response in the postsynaptic cell for longer than it should. For this reason reuptake and catabolic enzymes are often the targets of drugs gieven to treat neurological disorders. Another possible problem is wastage, if the neurotransmitter is left in the cleft it may difuse away and be wasted giving the presynaptic neurone more work to do creating more.
Which section of the brain is concerned with reasoning?
The frontal lobe involves the ability to recognize future consequences resulting from current actions, the choice between good and bad actions, the override and suppression of socially unacceptable responses.
It also is not fully developed until the age of around 25.
Is your tonsils connected to your ear?
i cannot fully answer this question however i feel i can perhaps contribute...
I've had one of my tonsils removed, i was about 7 years old when i was slowly un able to hear. i did not completely go deaf but i was definitely having a lot of trouble hearing.
doctors perfomed a lot of tests on me before finally realizing it was somehow due to my tonsils. they removed my left tonsil and sure enough, i was able to hear again.
i don't really know why they didn't remove both tonsils and i really wish they had because my right one has given me BIG problems ever since.
I've had tonsilitis about 8-9 times, the most severe case was when i was completely un able to open my mouth and had to eat through a very small straw. this lasted about 2 weeks.
the strange thing is when my tonsil acts up, i am again un able to hear... but only from my right side... which is the side with the left over tonsil.
when i get sick, even a common flu will hit my right ear and i will get an ear infection.
i get ear infections maybe 1-2 times a year since i was 8.
i do not really know the relationship between tonsils and hearing, but i definitely know they have to coinside.
good luck.
Next person...
Hey, I'm someone else. Although that story above was pretty true, I would have to say that it did not really provide enough information for people that might be trying to get the answer. As for me, I think it is because of the Eustachian tube that connected your inner ear to your throat, which a tonsil can have an affect on since it's in the throat.
The tonsils are two masses of tissue that lie at the back of the throat. So when it gets infected, the infection also spreads to your ear by the tube and it causes hearing problems. Although people might be wondering why I know about this, just to let you know, I do not have this problem with my ears, but I am studying for a test, and since I did not participate well in class, I have to do a good research tonight :( I am one of those people looking for the right information but have not found what I am truly looking for in here, so I decided to improve the answer, because at least I remember this from my class. Yeah, I won't do the same mistake the next time. You can see to it that I don't :)
Neuroglial cells that helps form the blood brain barrier?
The blood-brain barrier (BBB) is a diffusion barrier, which impedes influx of most compounds from blood to brain. Three cellular elements of the brain microvasculature compose the BBB-endothelial cells, astrocyte end-feet, and pericytes (PCs). Tight junctions (TJs), present between the cerebral endothelial cells, form a diffusion barrier, which selectively excludes most blood-borne substances from entering the brain. Astrocytic end-feet tightly ensheath the vessel wall and appear to be critical for the induction and maintenance of the TJ barrier, but astrocytes are not believed to have a barrier function in the mammalian brain.
Read more: What_is_the_structure_of_blood_brain_barrier
How is the brain informed that a receptor is adapting to a stimulus?
When a receptor adapts to a stimulus, it sends progressively reduced signals to the brain. The brain interprets this decrease in signals as adaptation, resulting in reduced sensitivity to that specific stimulus over time.
Why is the amygdala important?
It is a roughly almond-shaped mass of grey matter inside each cerebral hemisphere, involved with the experiencing of emotions. The amygdala is a section of the brain that is responsible for detecting fear and preparing for emergency events.
What are the differences between human brain and sheep brain?
The human brain is larger.
The positioning of the hind brain is different, due to the erect position of humans.
Convolutions are increased in humans (increases surface area).
The sheep's brain has a smaller cerebellum (lesser motor control/less complex learned motor behaviors).
There is a larger pineal gland in sheep (related to circadian rhythms/seasonal reproduction).
What happens when the brain is starved of oxygen on a regular basis?
Anoxia is damaging to brain cells. Without O2, cellular respiration will not function, which means that brain cells must use up what little reserves they have in the way of cellular energy (called ATP) to maintain their membrane potentials. Without restoration of O2 cells will become necrotic (i.e., their membrane potential will run down, they will lyse and die). Often this will be accompanied by neighbouring cells becomming apoptotic (programmed cell death).
