Write a short note on nervous system?

1 Answer

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 from the brain and spinal cord to various glands a: muscles; it also carries signals from stimuli receptors to the spinal cord and brain.

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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 : 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 : 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 : 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 : 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 : 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.

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 : 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 : 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 the peripheral nervous system?

Last Answer : Any part of the nervous system that is not part of the central nervous system is part of the peripheral nervous system. The nerves in the peripheral nervous system is split up into the autonomic ... ear) and muscles, while the autonomic connect other organs of the body, blood vessels and glands.

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 : 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 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 : 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 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 : A patient presents complaining of a stomach upset 48 hours after starting a course of antibiotic for oral infection, this is an example of, A. Type I allergic reaction B. Nervous disorder C. Side effect of the drug D. Type IV hypersensitivity reaction E. Pyloric stenosis

Last Answer : C. Side effect of the drug

Description : Write a note on Peripheral nervous system?

Last Answer : The peripheral nervous system consists of three systems of nerves. i) Cranial nerves Cranial nerves travel between brain and various organs without passing through the spinal cord. They are sensory, ... The brain or spinal cord then analyze the information and send motor impulses to effectors. 

Description : Write a note on nervous disorders? 

Last Answer : Paralysis: - In this disorder some part of the brain is made inactive because of clotting of blood vessel in brain. The blocking of blood supply may be due to some viral toxins as in ... It is functional mental disorder. It is combination of anxiety, compulsion, obsession, phobia, depression etc.

Description : A lateral incisor labial to the arch needs to be restored in normal alignment with PFM retraction. How will the tooth appear: A. Too wide B. Too short C. To narrow D. To long

Last Answer : C. To narrow

Description : The function of varnish: A. To reduce initial marginal leakage “Short-term leakage” B. To prevent long term leakage

Last Answer : A. To reduce initial marginal leakage “Short-term leakage”

Description : A patient with a history of angina suffers an attack while in the dental chair. Prompt relief can be anticipated in MOST instances from: A. Oral administration of short acting ... epinephrine D. Sublingual administration of glyceryl tri-nitrate E. Putting the patient in upright position

Last Answer : D. Sublingual administration of glyceryl tri-nitrate

Description : Ankyloglossia is caused by: A. Edentulous ridge B. Short lingual frenulum C. Short labial frenulum

Last Answer : B. Short lingual frenulum

Description : A labially displaced anterior tooth is restored with a gold core porcelain jacket crown so that it is in line with the arch; the crown will appears: A. Short B. Long C. Narrow D. Wide

Last Answer : C. Narrow

Description : What is the best way to apply aspiration before injection: A. Short, sharp pressure backwards B. Pressure for 2 to 3 seconds C. Long pressure D. Turning the needle 90° between two aspirations

Last Answer : A. Short, sharp pressure backwards

Description : Why do you construct a lower removable partial denture with lingual bar: A. It is used when the space between raised floor, mouth and gingival margin is minimal B. Plaque accumulation is less than with lingual plate C. Should be made thicker when short

Last Answer : B. Plaque accumulation is less than with lingual plate

Description : The most common cause of RCT “Root Canal Treatment” failure is: A. The canal not filled completely (Short obturation) B. Over filled canals

Last Answer : A. The canal not filled completely (Short obturation)

Description : What is the affect of office dental prophylaxis of regular six month intervals on children's oral health? A. Reduce caries incidence by approximately 30% B. Provide a long term improvement in ... term improvement in oral hygiene D. Prevent gingivitis E. Reduce the need for patient cooperation

Last Answer : C. Provide a short term improvement in oral hygiene

Description : Write a short note on one-party system. -SST 10th

Last Answer : In some countries only one party is allowed to control and run the government.These are called one party system. For example, China has a single party-Communist Party. One-party system is not a good ... in whose favour all the citizens have to vote. It cannot be called as elections in real sense.

Description : Write short note on UPS and its usage in railway system.

Last Answer : Ans. Ideally, the voltage supply by the utility system should be perfect sine wave without any harmonics, at its nominal frequency of 50 Hz and at its nominal magnitude. In practice however voltage can ... load from one source to the other results in the least amount of disturbance seen by the load.

Description : Select the correct statement from the ones given below with respect to Periplaneta americana. (a) Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal ... midgut and hindgut. (d) Grinding of food is carried out only by the mouth parts.

Last Answer : (b) Males bear a pair of short thread like anal styles.

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Last Answer : (b) Males bear short anal styles not present in females

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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 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.

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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.

Description : Write a short note on the following topics. (a) Terrace farming -Geography

Last Answer : (a) Terrace farming Terraces are built on steep slopes to control soil erosion. It levels the soil and supports are built to prevent landslides. It requires skill and hard labour to build it. (b) ... It is found in lower parts of valleys and hilly regions of J&K, Himachal Pradesh, Uttarakhand, etc.

Description : Write a short note on the sugar industry. -Geography

Last Answer : Sugar industry is agro-based Industry. India is the second largest producer of Sugar in the world. This industry is seasonal in nature, hence many works in cooperatives. 60% of sugar mills in India is ... are old and inefficient. If any stage goes wrong, it results in a huge loss to the farmer.

Description : What is bhoodan-gramdan movement? Write a short note about it. -SST 10th

Last Answer : 'This answer was deleted by our moderators...

Description : Write a short note on the development of factories in India. -SST 10th

Last Answer : (i) Cotton and jute mills were the first to be established in India The first cotton mill was set up in 1854 at Bombay Mumbai (ii) By 1864. the number rose to four The textile null was followed ... was set up (v) By 1874. the first spinning and weaving mill of Madras (Chennai) began is production.

Description : Write a short note on Sir Henry Morton Stanley. -SST 10th

Last Answer : Stanley was a journalist and explorer sent by the New York Herald to find Livingston, a missionary and explorer who had been in Africa for several years. Like other European and ... , investigated African terrains, and mapped different regions. These explorations helped the conquest of Africa.

Description : Write a short note on novels for the young. -SST 10th

Last Answer : Novels for young boys idealised a new type of man. The heroes of these novels were powerful, assertive, independent and daring. These novels were full of adventure set in places remote from Europe. Some of ... Helen Hunt Jackson's Ramona (1884) Sarah Chauncey Woolsey's What Katy Did (1872) .

Description : Write a short note on Indian manuscripts. -SST 10th

Last Answer : India had a very rich and old tradition of handwritten manuscripts - in Sanskrit, Arabic, Persian, and other vernacular languages. Manuscripts were copied on palm leaves or on handmade paper. ... be handled carefully. It was difficult to read manuscripts as they were written in different styles.