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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

What does no asymmetric hyperdense vessel mean on brain ct?

In brain CT imaging, "no asymmetric hyperdense vessel" indicates that there are no blood vessels appearing unusually dense on one side compared to the other. This can suggest the absence of significant vascular abnormalities, such as hemorrhage or thrombosis, which might alter vessel density. Overall, this finding is generally reassuring, indicating normal vascular structure and function.

What are the differences between concrete thinkers and abstract thinkers?

Concrete here reefers to "things", physical objects (which can be touched). And "abstract" refers to concepts.

How do opiates affect the brain?

  • it has anti-depressant and anxiolytic effect
  • drowsiness and confusion
  • might cause euphoria or dysphoria
  • can relieve your stress
  • has relaxation and sedation properties

What is the difference between an ischemic and hemorrhagic stroke?

The ischemic stroke means that there is lack of blood flow (due to a clot) to part of the brain causing that part to lose cells. The hemorrhagic stroke occurs when a blood vessel breaks and it causes bleeding. About 90% are ischemic strokes.
In the second type, oxygen- and nutrient-rich blood is prevented from reaching the brain cells beyond the point of rupture. In addition, leaked blood can irritate and harm the brain cells in the areas where it accumulates. This can make this type more deadly.

Do You Know How Meth addiction impact human brain!?

It's harmful for health and brain.Get rid of Drug and Alcohol Addiction abuse by contacting professional experts from Drug Addict Support.

Why is a patient who is pronounced clinically brain dead given a syringe shot when removed from life support?

People are NOT given a shot with a syringe after being pronounced clinically brain dead. There are several instances I can think of that you could think a nurse was giving an injection to someone who is dead.


Let me explain:

If a person is on a ventilator, the tube in their mouth/throat is held in place with a balloon that is inflated. The only way to remove the tube is by deflating the balloon. A syringe--without a needle--is inserted into a special valve that allows the balloon to deflate.


The same process deflates the balloon that holds a urinary catheter in the bladder; the nurse draws back on the syringe to remove the normal saline in the balloon.


IVs in arms would just be removed without flushing the site with Normal Saline (NS).


Even when your loved one is pronounced dead, the family can still ask a nurse to explain what she is doing, whether it is removing a trach, an IV, or catheter. ASK.

What is the study of brains called?

Neuropsychology is the study of the brain's structure and function. Neurobiology or Neuroscience is the study of the nervous system, which includes the brain.

Where is the Bloomingdale Area Historical Association in Bloomingdale Michigan located?

The address of the Bloomingdale Area Historical Association is: Po Box 12, Bloomingdale, MI 49026-0012

Why do women always seem to beat men in mixed wrestling videos?

Because the audience likes to see that more than the other way around.

Why do you pass out if your brain loses oxygen?

Autism is a debilitating disease. The fact that it affects children makes the impact even more heartbreaking. As we have seen, there is a considerable controversy as to isolating what the root cause is and how to address the problem. Some professionals claim it is merely a genetic propensity and while we can identify genes that might be the cause, we do not have the ability to alter those genes and stop them from manifesting the disease.
Others believe strongly that there is nutritional component, or rather, a lack of nutrition component. Malnutrition due to poor eating habits certainly appears to play a major role in many of today's childhood diseases including diabetes and ADHD. None should wonder that eating foods rich in carbohydrates, preservatives and other chemicals, and not eating adequate amounts of fresh vegetables and fruits containing natural vitamins, minerals, antioxidants, digestive enzymes, etc. will have a profound affect on a growing fetus.
With the rise of childhood obesity, and the lack of nutrition in most prepared foods that form the basis of a child's diet in the U.S. today, the brain, which requires a major share of nutrition consumed each day, will undoubtedly become starved of the very energy nutrients to maintain proper health.
As we have explained, at the root is efficient energy production. The brain's 100 billion brain cells (neurons), and about ten times that many, or one trillion, support cells (glia) all require oxygen on a second-by-second basis. Poor nutrition affects the body's ability to process oxygen as well as to control the natural by-product of energy production we call R.O.S. or "reactive oxygen species". (Another term for R.O.S. is "free radicals".) Free radicals, it is believed, can damage DNA. Therefore, poor nutrition, and the body's increased inability to deal with free radicals, may also have an adverse affect on the brain and exacerbate autism's symptoms.
As we have explained, early childhood immunizations are not, in themselves, possible coconspirators in permitting this disease to establish a foothold in the brains of children. However, it is clear that the levels of mercury present in the vaccines is high enough to present a cytotoxic response that may temporarily or permanently damage brain cells. Why the F.D.A. and the medical community have not shown greater concern about this is a mystery. Conspiracy theorists can make all sorts of claims about profiteering from the pharmaceutical and medical community, though there is no proof that this is true. Yet, the manufacturers of these vaccines are aware of the toxic side effects of mercury.
Here is what the Centers for Disease Control (CDC) has published about the dangers of mercury poisoning:
"The nervous system is very sensitive to all forms of mercury. Methylmercury and metallic mercury vapors are more harmful than other forms, because more mercury in these forms reaches the brain. Exposure to high levels of metallic, inorganic, or organic mercury will permanently damage the brain, kidneys, and developing fetus. Effects on brain functioning may result in irritability, shyness, tremors, changes in vision or hearing, and memory problems. Short-term exposure to high levels of metallic mercury vapors may cause effects including lung damage, nausea, vomiting, diarrhea, increases in blood pressure or heart rate, skin rashes, and eye irritation.
"How does mercury affect children? Very young children are more sensitive to mercury than adults. Mercury in the mother's body passes to the fetus and may accumulate there. It can also pass to a nursing infant through breast milk. However, the benefits of breast feeding may be greater than the possible adverse effects of mercury in breast milk. Mercury's harmful effects that may be passed from the mother to the fetus include brain damage, mental retardation, incoordination, blindness, seizures, and inability to speak. Children poisoned by mercury may develop problems of their nervous and digestive systems, and kidney damage." (Agency for Toxic Substances and Disease Registry, 1825 Century Blvd, Atlanta, GA 30345 CDC Contact Center: 800-CDC-INFO)
It only seems logical that if infants are going to be immunized with vaccines laden with mercury to prevent possible future diseases, that every effort should be made to help detoxify the infants brain of this mercury.
Many "experts" argue vehemently that oxygen will cause more damage to the brain. This is a silly argument. The brain requires more than one forth of the oxygen we breathe. It is the body's inability to efficiently neutralize metabolic wastes that may cause problems. Supplementing a child's diet with plant vitamins, plant minerals, essential amino acids, natural enzymes and healthy foods will minimize any possible damage. In fact, nutritional supplementation in combination with oxygen therapies may become the catalysts for substantial positive outcomes. Certainly the initial clinical research bears some truth to this combined approach.
Dr. Gary W. Goldstein, president and CEO of the Kennedy Krieger Institute in Baltimore, which specializes in children's developmental problems, agrees: "Here there is no scientific rationale, and there's actually a school of thought developing that ... breathing in too much oxygen can actually damage brain tissue."
Kirsten Scharnberg, writing in the Baltimore Sun, added: "In the case of children with autism, considered the fastest-growing developmental disability in the U.S. today, advocates claim some stunning results: transforming nonverbal children into fluent speakers; helping children hypersensitive to outside stimuli become calm enough to attend public schools; changing kids once adverse to any personal interaction or touching into affectionate toddlers." ('Oxygen therapy for kids with autism debated'. Originally published April 27, 2007 ")
"Oxygen is needed in the body. We can be without food and water for a lengthy time.
We can be without oxygen only for a few seconds...it is the spark of life."
Dr. Charles H. Farr, M.D., Ph.D.: O2 Therapies
"Oxidation is the source of life.
Its lack causes impaired health or disease; its cessation, death."
Dr. Eugene Blass, Ph.D.: Oxygen Therapy: Its Foundation, Aim & Result
"All chronic pain, suffering and diseases are caused from a lack of oxygen at the cell level."
Dr. Arthur C. Guyton, M.D.: The Textbook on Medical Physiology
"Oxygen plays a pivotal role in the proper functioning of the immune system."
Dr. Parris M. Kidd, Ph.D.: Antioxidant Adaptation
Oxygen plays a vital role in proper metabolic functions, blood circulation, the assimilation of nutrients, digestion and the elimination of cellular and metabolic wastes.
Sufficient oxygen helps the body in its ability to rebuild itself and maintain a strong and healthy immune system. You know how important water, vitamins, minerals and enzymes are to your health and vitality. Although you can actually exist without food for about 40 days, and water for about seven days, without oxygen, life ceases to exist in only minutes.

What is the mean for alpha delta mind?

Well, Our brain uses 13Hz (high alpha or low beta) for "active" intelligence. Often we find individuals who exhibit learning disabilities and attention problems having a deficiency of 13Hz activity in certain brain regions that affects the ability to easily perform sequencing tasks and math calculations.

The lowest frequencies are delta. These are less than 4 Hz and occur in deep sleep and in some abnormal processes. It is the dominant rhythm in infants up to one year of age and it is present in stages 3 and 4 of sleep. It tends to be the highest in amplitude and the slowest waves. We increase Delta waves in order to decrease our awareness of the physical world. We also access information in our unconscious mind through Delta. Peak performers decrease Delta waves when high focus and peak performance are required. However, most individuals diagnosed with Attention Deficit Disorder, naturally increase rather than decrease Delta activity when trying to focus. The inappropriate Delta response often severely restricts the ability to focus and maintain attention. It is as if the brain is locked into a perpetual drowsy state.Another way to look at Delta is to imagine you are driving in a car and you shift into 1st gear....you're not going to get anywhere very fast. So Delta would represent 1st gear.

Why in restaurants small plate kept at left side and large plate on right side?

The one on the left is called as quarter plae and on right is called as full plate (Army Ettiquettes). Smaller plate is for bread and larger is known as dinner plate. Smaller plae is placed just above the tip of fork.

Why is it that not many people can remember being born?

It is due to the fact that the brain is not fully developed. Actually it is not fully developed until around the age of 30.

Where can you find a labeled diagram of a brain?


The brain's structures are shown in this video.


When a stroke affects your vision which part of the brain is involved?

The lobes in the back of the brain called the occipital lobes.

How many categories of cerebral hypoxia are there?

There are four categories of cerebral hypoxia; in order of severity they are: diffuse cerebral hypoxia (DCH), focal cerebral ischemia, cerebral infarction, and global cerebral ischemia.