Write a note on Magnetoencephalography (MEG)?

Write a note on Magnetoencephalography (MEG)?
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MEG detects the tiny magnetic fields created as individual neurons "fire" within the brain. It can pinpoint the active region with a millimeter, and can follow the movement of brain activity as it travels from region to region within the brain. MEG is noninvasive requiring only that the subject's head lie within a helmet containing the magnetic sensors.
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Write a brief note on MEG?

Description : Write a brief note on MEG?

Last Answer : Apart from measuring the electric field around the skull it is possible to measure the magnetic field directly in a technique known asmagnetoencephalography (MEG). This technique has the same temporal ... dendrites oriented in a way that gives rise to detectable magnetic fields outside the skull.

Write a brief note on EEG?

Description : Write a brief note on EEG?

Last Answer : By placing electrodes on the scalp it is possible to record the summed electrical activity of the cortex, in a technique known aselectroencephalography (FEG). EEG measures mass changes in ... thousandths of a second. EEG recordings have good temporal resolution, but poor spatial resolution.

Write a short note on the damage and diseases of the brain?

Description : Write a short note on the damage and diseases of the brain?

Last Answer : The human brain is inclined to many types of damage and disease. The most common forms of physical damage are closed head injuries such as a blow to the head, a stroke, or poisoning by ... at least partially by brain dysfunctions, although the nature of such brain anomalies is not well understood.

Write a short note on hind brain?

Description : Write a short note on hind brain?

Last Answer : The hindbrain extends from the spinal cord and is composed of the metencephalcn andmyelencephalon. The metencephalon contains structures such as the pons and cerebellum. These regions assists in ... is responsible for controlling such autonomic functions as breathing, heart rate, and digestion.

Write a note on Peripheral Nervous System?

Description : Write a note on Peripheral Nervous System?

Last Answer : The Peripheral Nervous System consists of all the sensory nerves and the motor nerves (these carry messages to other parts of the body from the brain and spinal cord). Sensory nerves ... (sometimes called inter neurons). Sensory, intermediate and motor nerves have gaps between them called synapses

Write a brief note on Brain?

Description : Write a brief note on Brain?

Last Answer : The brain is traditionally divided into three parts, the hindbrain, the midbrain, and the forebrain. This drawing is roughly what it would look like if you sliced your brain straight down the middle, like a part in your hair. The front of the brain is on the left, the back on the right.

Write a short note on Spinal Cord?

Description : Write a short note on Spinal Cord?

Last Answer : The spinal cord runs from the base of the skull all the way down the spine to the "tail bone." The neurons are found in an H-shaped space within the spinal vertebrae. There are motor pathways coming ... movements! All that is needed is the muscle strength to Stanc and, of course, a lot of practice.

Write a note on The Electroencephalograph (EEG)?

Description : Write a note on The Electroencephalograph (EEG)?

Last Answer : This device measures electrical activity (brain "waves") that can be detected at the surface of the scalp. It can distinguish between, for example, sleep and excitement. It is also useful in diagnosing brain disorders such as a tendency to epileptic seizures.

Write a note on The Cerebral Hemispheres?

Description : Write a note on The Cerebral Hemispheres?

Last Answer : Each hemisphere of the cerebrum is subdivided into four lobes visible from the outside: •frontal • parietal • occipital • temporal

Write a short note on Forebrain?

Description : Write a short note on Forebrain?

Last Answer : The anterior most division of the developing vertebrate brain that contains the most complex neural network in the CNS. The forebrain has two major divisions, the lower diencephalon, which contains the thalamus and the hypofhalmus, and the upper telencephalon, which contains the cerebrum.

Write a short note on Midbrain?

Description : Write a short note on Midbrain?

Last Answer : This part of the brain is located between the hindbrain and the forebrain making up part of the brain stem. All sensory and motor information going to and from the fore brain and the spinal cord must pass through the midbrain, it can also be refered to as the relay station.

Write a note on the glandular systems?

Description : Write a note on the glandular systems?

Last Answer : The body has two types of glandular systems, the endocrine, which generally secrete hormones through the bloodstream, and the exocrene which secrete fluids to the outer surfaces of the body, such as sweating.

Write a short note on nervous system?

Description : Write a short note on nervous system?

Last Answer : The physical structure of the body plays an important role in the behavior of an individual. The most important physical structure for psychologists is the nervous system. The nervous system carries orders ... a: muscles; it also carries signals from stimuli receptors to the spinal cord and brain.

Write a short note on Hindbrain?

Description : Write a short note on Hindbrain?

Last Answer : The hindbrain is a well protected central core of the brain and includes the cerebellum, reticular formation, and the brain stem. The cerebellum plays an important role in the integration of sensory ... the brain which is involved in stereotypical actions, such as walking, sleeping, and lying down.

Is it normal that using a site such as this one for about 4-5 hours, uses up about 100 meg of internet allotment?

Description : Is it normal that using a site such as this one for about 4-5 hours, uses up about 100 meg of internet allotment?

Last Answer : Whoa, certainly not. Even if you are refreshing a lot, it should load stuff from your cache. I'd be hard pressed to push 10MB in an entire day of refreshing. Something else is using up your internet. ... the way, the term you want is bandwidth , not internet space which doesn't really exist :)

Share $200 between sharon and meg so Sharon get $22 more .What's is Sharon's amount What is meg's amount?

Description : Share $200 between sharon and meg so Sharon get $22 more .What's is Sharon's amount What is meg's amount?

Last Answer : Sharon gets $89, Meg gets $111.

Is John Cabot related to Meg Cabot?

Description : Is John Cabot related to Meg Cabot?

Last Answer : No. Meg Cabot is not related to John Cabot because John didn'thave a known mother had no sisters so they are not related. Look itup if you don't believe this.

Why does Charles Wallace want to take mrs. Who is spectacles from meg?

Description : Why does Charles Wallace want to take mrs. Who is spectacles from meg?

Last Answer : Need answer

What does the cache(8 meg) mean or do for a for a hard drive?

Description : What does the cache(8 meg) mean or do for a for a hard drive?

Last Answer : The cache size is refers to the size of buffer on the hard drive. The bigger the the buffer, the less the hard drive has to access the drive. Also it improves the time that the computer needs to access data from the drive.

The reading at 'M' on the megger scale illustrated, is ____. EL-0044 A. 7.1 meg ohms B. 71 meg ohms C. .71 meg ohms D. 200,000,000 ohms

Description : The reading at 'M' on the megger scale illustrated, is ____. EL-0044 A. 7.1 meg ohms B. 71 meg ohms C. .71 meg ohms D. 200,000,000 ohms

Last Answer : Answer: A

The reading at 'M' on the megger scale shown in the illustration, is __________. EL-0044 A. 7.1 meg ohms B. .71 meg ohms C. 71 meg ohms D. 200,000,000 ohms

Description : The reading at 'M' on the megger scale shown in the illustration, is __________. EL-0044 A. 7.1 meg ohms B. .71 meg ohms C. 71 meg ohms D. 200,000,000 ohms

Last Answer : Answer: A

The reading at 'V' on the megger scale shown in the illustration, is __________. EL-0044 A. 40 meg ohms B. 0.40 meg ohms C. 4.0 kilo ohms D. 40,000 ohms

Description : The reading at 'V' on the megger scale shown in the illustration, is __________. EL-0044 A. 40 meg ohms B. 0.40 meg ohms C. 4.0 kilo ohms D. 40,000 ohms

Last Answer : Answer: D

The reading at 'P' on the megger scale shown in the illustration, is __________. EL-0044 A. 15 meg ohms B. 1.5 meg ohms C. 1.5 kilo ohms D. 150,000 ohms

Description : The reading at 'P' on the megger scale shown in the illustration, is __________. EL-0044 A. 15 meg ohms B. 1.5 meg ohms C. 1.5 kilo ohms D. 150,000 ohms

Last Answer : Answer: B

Write the names of Cerebral Cortex Lobes?

Description : Write the names of Cerebral Cortex Lobes?

Last Answer : •Frontal Lobes • Occipital Lobes •Parietal Lobes • Temporal Lobes

Write down the role of Hypothalamus?

Description : Write down the role of Hypothalamus?

Last Answer : The seat of the autonomic nervous system. Damage to the hypothalamus is quickly fatal as the normal homeostasis of body temperature, blood chemistry, etc. goes out of control. The source of 8 hormones, two of which pass into the posterior lobe of the pituitary gland.

Write down the role of Exocrine glands?

Description : Write down the role of Exocrine glands?

Last Answer : Exocrine glands release their secretions into ducts which in turn release them onto the surface of organs. Examples of exocrine glands are sweat glands, salivary glands, mammary glands, etc. ... digestive system while it also contains the Islets of Langerhans which secrete insulin into the blood.

Write down the role of an amygdale?

Description : Write down the role of an amygdale?

Last Answer : The amygdala appears to be a center of emotions. It sends signals to the hypothalamus and medulla which can activate the flight or fight response of the autonomic nervous system.

Write down the role of axons?

Description : Write down the role of axons?

Last Answer : Axons are organelles that carry information away from the cell body. Axons may be as small as several microns or as long as several meters in giraffes and whales. The axons main job is to send a ... only one axon, but the axon may have branches with what are called terminal buttons at its end.

Write down the role of dendrites?

Description : Write down the role of dendrites?

Last Answer : Dendrites are organelles that sense the neurotransmitter secreted by the axon of another neuron. Most neurons have more than one dendrite. Dendrites and axons do not directly touch each other; there is a gap, called a synapse.

Explain the left hemisphere area related to language?

Description : Explain the left hemisphere area related to language?

Last Answer : The first language area within the left hemisphere to be discovered is Broca's area, named after Paul Broca, who discovered the area while studying patients with aphasia, a language disorder. Broca's area doesn't ... the difference between "The boy was hit by the girl" and "The girl hit the boy."

Define the treatment of Muscular Dystrophy ?

Description : Define the treatment of Muscular Dystrophy ?

Last Answer : There is no specific treatment to stop or reverse any form of MD. Treatment may include physical therapy, respiratory therapy, speech therapy, orthopedic appliances used for support, and ... may need assisted ventilation to treat respiratory muscle weakness and a pacemaker for cardiac abnormalities.

Which area of the brain is related to language?

Description : Which area of the brain is related to language?

Last Answer : The two hemispheres are thought to contribute to the processing and understanding of language: the left hemisphere processes the linguistic meaning of prosody (or, the rhythm, stress, and intonation ... brains are capable of adapting to difficult circumstances, if the df.mage occurs early enough.

What are the Effects of brain damage?

Description : What are the Effects of brain damage?

Last Answer : A key source of information about the function of brain regions is the effects of damage to them. In humans, strokes have long provided a "natural laboratory" for studying the effects of brain ... often crosses into multiple regions of the brain, not along clear-cut borders, making it difficult to

Explain the Functional divisions of cortex?

Description : Explain the Functional divisions of cortex?

Last Answer : Researchers who study the functions of the cortex divide it into three functional categories of regions, or areas. One consists of the primary sensory areas, which receive signals from the sensory ... and are involved in the complex process that we call perception, thought, and decision making.

Explain the structure of cerebral cortex?

Description : Explain the structure of cerebral cortex?

Last Answer : The cerebral cortex is essentially a sheet of neural tissue, folded in a way that allows a large surface area to fit within the confines of the skull. Each cerebral hemisphere, in fact, has a ... .3 square feet. Anatomists call each cortical fold asulcus, and the smooth area between folds a gyrus.

What is the dominant feature of human brain?

Description : What is the dominant feature of human brain?

Last Answer : The dominant feature of the human brain is corticalization. The cerebral cortex in humans is so large that it overshadows every other part of the brain. A few subcortical structures show alterations reflecting this ... the rat and the cat, to more complex ones, such as the chimpanzee and the human.

What are the major tasks of brain?

Description : What are the major tasks of brain?

Last Answer : The brain performs an incredible number of tasks: It controls body temperature, blood pressure, heart rate and breathing. It accepts a flood of information about the world around you from ... skull, suspended in cerebrospinal fluid, and isolated from the bloodstream by the blood-brain barrier.

What is Cerebral Cortex?

Description : What is Cerebral Cortex?

Last Answer : •Outer portion (1.5mm to 5mm) of the cerebrum •Receives and processes sensory information •Divided into cerebral cortex lobes

What is Cerebellum?

Description : What is Cerebellum?

Last Answer : •Controls movement coordination •Maintains balance and equilibrium

What is Central Sulcus (Fissure of Rolando)?

Description : What is Central Sulcus (Fissure of Rolando)?

Last Answer : Central sulcus is a Deep grove that separates the parietal and frontal lobes

Explain the Broca's Area?

Description : Explain the Broca's Area?

Last Answer : Broca's area is related to Speech production and Understanding language

What are the functions of Basal Ganglia?

Description : What are the functions of Basal Ganglia?

Last Answer : Basal ganglia is Involved in cognition and voluntary movement and Diseases related to damages of this area are Parkinson's and Huntington's

Explain the mid brain?

Description : Explain the mid brain?

Last Answer : The midbrain and the hindbrain together make up the brainstem. The midbrain is the portion of the brainstem that connects the hindbrain and the forebrain. This region of the brain is involved in auditory and visual responses as well as motor function.

What is telencephalon?

Description : What is telencephalon?

Last Answer : The telencephalon contains the largest part of the brain, the cerebral cortex. Most of the actual information processing in the train takes place in the cerebral cortex.

What is diencephaion?

Description : What is diencephaion?

Last Answer : The diencephaion contains structures such as the thalamus and hypothalamus which are responsible for such functions as motor control, relaying sensory information, and controlling autonomic functions.

Describe the causes of Cerebral Palsy?

Description : Describe the causes of Cerebral Palsy?

Last Answer : Neural tube defects (NTDs) are one of the most common birth defects, occurring in approximately one in 1,000 live births in the United States. An NTD is an opening in the spinal cord or brain that ... to fuse and form the neural tube. When the neural tube does not close completely, an NTD develops.

What is temporal lobe?

Description : What is temporal lobe?

Last Answer : There are two temporal lobes, one on each side of the brain located at about the level of the ears. These lobes allow a person to tell one smell from another and one sound from another. They also help ... and faces). Left Lobe: Mainly involved in verbal memory (i.e., memory for words and names).

What is parital lobe?

Description : What is parital lobe?

Last Answer : One of the two parietal lobes of the brain located behind the frontal lobe at the top of the brain. The parietal lobes contain the primary sensory cortex which controls sensation (touch, pressure) ... a large association area that controls fine sensation (judgment of texture, weight, size, shape).

Explain occipital lobe?

Description : Explain occipital lobe?

Last Answer : Region in the back of the brain which processes visual information. Not only is the occipital lobe mainly responsible for visual reception, it also contains association areas that help in the visual recognition of shapes and colors. Damage to this lobe can cause visual deficits.