Recent questions tagged doctor

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."

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.

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.

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

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.

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.

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.

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.

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.

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.

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.

Description : Write the names of Cerebral Cortex Lobes?

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

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

Description : What is Cerebellum?

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

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

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

Description : Explain the Broca's Area?

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

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

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.

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.

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.

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.

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.

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).

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).

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.

Description : What is frontal lobe.

Last Answer : Front part of the brain; involved in planning, organizing, problem solving, selective attention, personality and a variety of "higher cognitive functions" including behavior and emotions. The anterior ... produce movement are located in the motor areas. The premotor areas serve to modify movements.

Description : What causes of Tourette syndrome (TS)?

Last Answer : An abnormal metabolism of the neurotransmitters dopamine and serotonin are involved with the disorder. It is genetically transmitted; parents having a 50% chance of passing the gene on to their children. ... chance of displaying symptoms, boys with the gene have a 99% chance of displaying symptoms.

Description : What is brain stem?

Last Answer : The lower extension of the brain where it connects to the spinal cord. Neurological functions located in the brainstem include those necessary for survival (breathing, digestion, heart rate, blood pressure) ... up and down from peripheral nerves and spinal cord to the highest parts of the brain.

Description : What are the Diseases of the central nervous system?

Last Answer : There are many central nervous system diseases, including infections of the central nervous system such as encephalitis and poliomyelitis, neurodegenerative diseases such as Alzheimer's disease and amyotrophic ... can cause severe illness and, when malignant, can have very high mortality rates.

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

Description : What is thalamus?

Last Answer : The thalamus is like a switching station, conducting signals from the body up to the relevant parts of the higher brain, and down from the brain to the lower brain and spinal cord.

Description : What is cerebellum?

Last Answer : The cerebellum, which means "little brain" in Latin, is in fact shaped like a small brain and it is primarily responsible for coordinating involuntary movement. It is believed that when you learn complex motor tasks, the details are recorded in the cerebellum.

Description : What is the role of pons?

Last Answer : The second part is the pons, which means bridge in Latin. The pons sits in front of the medulla, and wraps around it to the back. It is primarily the pathways connecting the two halves of the next part, which is called the cerebellum.

Description : What is the prognosis of Tourette Syndrome ?

Last Answer : TS is a chronic condition with symptoms lasting a lifetime, most people with the condition/experience their worst symptoms in their early teens, with improvement occurring in the late teens and continuing into adulthood.

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.

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.

Description : What is Epilepsy?

Last Answer : Epilepsy is a brain disorder in which clusters of nerve cells, or neurons, in the brain sometimes signal abnormally. In epilepsy, the normal pattern of neuronal activity becomes disturbed, ... , an imbalance of nerve signaling chemicals called neurotransmitters, or some combination of these factors.

Description : Write a note on Magnetoencephalography (MEG)?

Last Answer : 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 ... noninvasive requiring only that the subject's head lie within a helmet containing the magnetic sensors.

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.

Description : What are the types of cerebral palsy?

Last Answer : Cerebral palsy can be divided into following types: • Spastic cerebral palsy • Choreoathetoid cerebral palsy • Hypotonic cerebral palsy.

Description : What is limbic system?

Last Answer : A limbic system; they receives input from various association areas in the cerebral cortex and pass signals on +o the nucleus accumbens.

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

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.

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.

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.

Description : What is the role of nervous system in human body?

Last Answer : The nervous system is made up of a network of complex fibers known as nerves that thread throughout the human body like house hold wiring. The nerves conduct electrical signals back and ... The autonomic nervous system, which controls automatic functions such as breathing, heart beat and digestion.

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.

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.

Description : What is The Central nervous system?

Last Answer : The central nervous system has a fundamental role in the control of behavior. It contains the brain and the spinal cord which are both encased in bone which shows their importance. Both ... receive signals from the afferent neurons and send signals to muscles and glands through efferent neurons.

Description : What is hypotonic cerebral palsy?

Last Answer : Hypotonia is diminished muscle tone. The infant or child with hypotonic cerebral palsy appears in early infancy, hypotonia can be easily seen by the inability of the infant to gain any ... cognitive development. Hypotonic cerebral palsy is often the result of severe brain damage or malformations.