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Neurodegenerative diseases were once considered disorders of the mind that were deeply rooted in psychology. Now viruses rank among the environmental factors thought to trigger brain-ravaging diseases such as multiple sclerosis (MS) and Alzeimer’s disease. Human herpesvirus-6 (HHV-6), in particular, has been linked to MS in past studies. Neuroscientists have determined that the virus makes its entry to the human brain through the olfactory pathway, right along with the odors wafting into our nose. The researchers tested samples of brain cells from people with MS and healthy control subjects and found evidence of the virus in the olfactory bulb in both groups. Infection via the nasal passage is probably quite common, as is harboring a dormant reservoir of HHV-6, but in people with MS, the virus is active. The virus appears to invade the brain by infecting a type of glial cell called olfactory ensheathing cells (OECs), which nourish smell-sensing neurons and guide the virus from the olfactory bulb to their targets in the nervous system. These targets include the limbic system, a group of evolutionarily old structures deep in the brain, which is where viruses like to reactivate. The olfactory neurons and their OECs are among the few brain cells known to regenerate throughout our life. This neurogenesis may keep our sense of smell sharp, but at the cost of providing the virus the opportunity to spread.Why does the author say “Infection via the nasal passage is probably quite common…”?a)To indicate that it is extremely difficult to stop infection through the nasal passage.b)To prove that there is a greater likelihood of multiple sclerosis in people who have active strains of virus rather than those who do not.c)To illustrate that HHV-6 infects in the same manner as most other viruses do.d)To explain the finding that the samples of both the mentioned groups showed the presence of HHV-6.e)To indicate that there is a chance that the occurrence of multiple sclerosis may increase in the future if the strains of HHV-6 are activated.Correct answer is option 'D'. Can you explain this answer? for GMAT 2024 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about Neurodegenerative diseases were once considered disorders of the mind that were deeply rooted in psychology. Now viruses rank among the environmental factors thought to trigger brain-ravaging diseases such as multiple sclerosis (MS) and Alzeimer’s disease. Human herpesvirus-6 (HHV-6), in particular, has been linked to MS in past studies. Neuroscientists have determined that the virus makes its entry to the human brain through the olfactory pathway, right along with the odors wafting into our nose. The researchers tested samples of brain cells from people with MS and healthy control subjects and found evidence of the virus in the olfactory bulb in both groups. Infection via the nasal passage is probably quite common, as is harboring a dormant reservoir of HHV-6, but in people with MS, the virus is active. The virus appears to invade the brain by infecting a type of glial cell called olfactory ensheathing cells (OECs), which nourish smell-sensing neurons and guide the virus from the olfactory bulb to their targets in the nervous system. These targets include the limbic system, a group of evolutionarily old structures deep in the brain, which is where viruses like to reactivate. The olfactory neurons and their OECs are among the few brain cells known to regenerate throughout our life. This neurogenesis may keep our sense of smell sharp, but at the cost of providing the virus the opportunity to spread.Why does the author say “Infection via the nasal passage is probably quite common…”?a)To indicate that it is extremely difficult to stop infection through the nasal passage.b)To prove that there is a greater likelihood of multiple sclerosis in people who have active strains of virus rather than those who do not.c)To illustrate that HHV-6 infects in the same manner as most other viruses do.d)To explain the finding that the samples of both the mentioned groups showed the presence of HHV-6.e)To indicate that there is a chance that the occurrence of multiple sclerosis may increase in the future if the strains of HHV-6 are activated.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for GMAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Neurodegenerative diseases were once considered disorders of the mind that were deeply rooted in psychology. Now viruses rank among the environmental factors thought to trigger brain-ravaging diseases such as multiple sclerosis (MS) and Alzeimer’s disease. Human herpesvirus-6 (HHV-6), in particular, has been linked to MS in past studies. Neuroscientists have determined that the virus makes its entry to the human brain through the olfactory pathway, right along with the odors wafting into our nose. The researchers tested samples of brain cells from people with MS and healthy control subjects and found evidence of the virus in the olfactory bulb in both groups. Infection via the nasal passage is probably quite common, as is harboring a dormant reservoir of HHV-6, but in people with MS, the virus is active. The virus appears to invade the brain by infecting a type of glial cell called olfactory ensheathing cells (OECs), which nourish smell-sensing neurons and guide the virus from the olfactory bulb to their targets in the nervous system. These targets include the limbic system, a group of evolutionarily old structures deep in the brain, which is where viruses like to reactivate. The olfactory neurons and their OECs are among the few brain cells known to regenerate throughout our life. This neurogenesis may keep our sense of smell sharp, but at the cost of providing the virus the opportunity to spread.Why does the author say “Infection via the nasal passage is probably quite common…”?a)To indicate that it is extremely difficult to stop infection through the nasal passage.b)To prove that there is a greater likelihood of multiple sclerosis in people who have active strains of virus rather than those who do not.c)To illustrate that HHV-6 infects in the same manner as most other viruses do.d)To explain the finding that the samples of both the mentioned groups showed the presence of HHV-6.e)To indicate that there is a chance that the occurrence of multiple sclerosis may increase in the future if the strains of HHV-6 are activated.Correct answer is option 'D'. Can you explain this answer?.

Solutions for Neurodegenerative diseases were once considered disorders of the mind that were deeply rooted in psychology. Now viruses rank among the environmental factors thought to trigger brain-ravaging diseases such as multiple sclerosis (MS) and Alzeimer’s disease. Human herpesvirus-6 (HHV-6), in particular, has been linked to MS in past studies. Neuroscientists have determined that the virus makes its entry to the human brain through the olfactory pathway, right along with the odors wafting into our nose. The researchers tested samples of brain cells from people with MS and healthy control subjects and found evidence of the virus in the olfactory bulb in both groups. Infection via the nasal passage is probably quite common, as is harboring a dormant reservoir of HHV-6, but in people with MS, the virus is active. The virus appears to invade the brain by infecting a type of glial cell called olfactory ensheathing cells (OECs), which nourish smell-sensing neurons and guide the virus from the olfactory bulb to their targets in the nervous system. These targets include the limbic system, a group of evolutionarily old structures deep in the brain, which is where viruses like to reactivate. The olfactory neurons and their OECs are among the few brain cells known to regenerate throughout our life. This neurogenesis may keep our sense of smell sharp, but at the cost of providing the virus the opportunity to spread.Why does the author say “Infection via the nasal passage is probably quite common…”?a)To indicate that it is extremely difficult to stop infection through the nasal passage.b)To prove that there is a greater likelihood of multiple sclerosis in people who have active strains of virus rather than those who do not.c)To illustrate that HHV-6 infects in the same manner as most other viruses do.d)To explain the finding that the samples of both the mentioned groups showed the presence of HHV-6.e)To indicate that there is a chance that the occurrence of multiple sclerosis may increase in the future if the strains of HHV-6 are activated.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for GMAT. Download more important topics, notes, lectures and mock test series for GMAT Exam by signing up for free.

Here you can find the meaning of Neurodegenerative diseases were once considered disorders of the mind that were deeply rooted in psychology. Now viruses rank among the environmental factors thought to trigger brain-ravaging diseases such as multiple sclerosis (MS) and Alzeimer’s disease. Human herpesvirus-6 (HHV-6), in particular, has been linked to MS in past studies. Neuroscientists have determined that the virus makes its entry to the human brain through the olfactory pathway, right along with the odors wafting into our nose. The researchers tested samples of brain cells from people with MS and healthy control subjects and found evidence of the virus in the olfactory bulb in both groups. Infection via the nasal passage is probably quite common, as is harboring a dormant reservoir of HHV-6, but in people with MS, the virus is active. The virus appears to invade the brain by infecting a type of glial cell called olfactory ensheathing cells (OECs), which nourish smell-sensing neurons and guide the virus from the olfactory bulb to their targets in the nervous system. These targets include the limbic system, a group of evolutionarily old structures deep in the brain, which is where viruses like to reactivate. The olfactory neurons and their OECs are among the few brain cells known to regenerate throughout our life. This neurogenesis may keep our sense of smell sharp, but at the cost of providing the virus the opportunity to spread.Why does the author say “Infection via the nasal passage is probably quite common…”?a)To indicate that it is extremely difficult to stop infection through the nasal passage.b)To prove that there is a greater likelihood of multiple sclerosis in people who have active strains of virus rather than those who do not.c)To illustrate that HHV-6 infects in the same manner as most other viruses do.d)To explain the finding that the samples of both the mentioned groups showed the presence of HHV-6.e)To indicate that there is a chance that the occurrence of multiple sclerosis may increase in the future if the strains of HHV-6 are activated.Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Neurodegenerative diseases were once considered disorders of the mind that were deeply rooted in psychology. Now viruses rank among the environmental factors thought to trigger brain-ravaging diseases such as multiple sclerosis (MS) and Alzeimer’s disease. Human herpesvirus-6 (HHV-6), in particular, has been linked to MS in past studies. Neuroscientists have determined that the virus makes its entry to the human brain through the olfactory pathway, right along with the odors wafting into our nose. The researchers tested samples of brain cells from people with MS and healthy control subjects and found evidence of the virus in the olfactory bulb in both groups. Infection via the nasal passage is probably quite common, as is harboring a dormant reservoir of HHV-6, but in people with MS, the virus is active. The virus appears to invade the brain by infecting a type of glial cell called olfactory ensheathing cells (OECs), which nourish smell-sensing neurons and guide the virus from the olfactory bulb to their targets in the nervous system. These targets include the limbic system, a group of evolutionarily old structures deep in the brain, which is where viruses like to reactivate. The olfactory neurons and their OECs are among the few brain cells known to regenerate throughout our life. This neurogenesis may keep our sense of smell sharp, but at the cost of providing the virus the opportunity to spread.Why does the author say “Infection via the nasal passage is probably quite common…”?a)To indicate that it is extremely difficult to stop infection through the nasal passage.b)To prove that there is a greater likelihood of multiple sclerosis in people who have active strains of virus rather than those who do not.c)To illustrate that HHV-6 infects in the same manner as most other viruses do.d)To explain the finding that the samples of both the mentioned groups showed the presence of HHV-6.e)To indicate that there is a chance that the occurrence of multiple sclerosis may increase in the future if the strains of HHV-6 are activated.Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Neurodegenerative diseases were once considered disorders of the mind that were deeply rooted in psychology. Now viruses rank among the environmental factors thought to trigger brain-ravaging diseases such as multiple sclerosis (MS) and Alzeimer’s disease. Human herpesvirus-6 (HHV-6), in particular, has been linked to MS in past studies. Neuroscientists have determined that the virus makes its entry to the human brain through the olfactory pathway, right along with the odors wafting into our nose. The researchers tested samples of brain cells from people with MS and healthy control subjects and found evidence of the virus in the olfactory bulb in both groups. Infection via the nasal passage is probably quite common, as is harboring a dormant reservoir of HHV-6, but in people with MS, the virus is active. The virus appears to invade the brain by infecting a type of glial cell called olfactory ensheathing cells (OECs), which nourish smell-sensing neurons and guide the virus from the olfactory bulb to their targets in the nervous system. These targets include the limbic system, a group of evolutionarily old structures deep in the brain, which is where viruses like to reactivate. The olfactory neurons and their OECs are among the few brain cells known to regenerate throughout our life. This neurogenesis may keep our sense of smell sharp, but at the cost of providing the virus the opportunity to spread.Why does the author say “Infection via the nasal passage is probably quite common…”?a)To indicate that it is extremely difficult to stop infection through the nasal passage.b)To prove that there is a greater likelihood of multiple sclerosis in people who have active strains of virus rather than those who do not.c)To illustrate that HHV-6 infects in the same manner as most other viruses do.d)To explain the finding that the samples of both the mentioned groups showed the presence of HHV-6.e)To indicate that there is a chance that the occurrence of multiple sclerosis may increase in the future if the strains of HHV-6 are activated.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Neurodegenerative diseases were once considered disorders of the mind that were deeply rooted in psychology. Now viruses rank among the environmental factors thought to trigger brain-ravaging diseases such as multiple sclerosis (MS) and Alzeimer’s disease. Human herpesvirus-6 (HHV-6), in particular, has been linked to MS in past studies. Neuroscientists have determined that the virus makes its entry to the human brain through the olfactory pathway, right along with the odors wafting into our nose. The researchers tested samples of brain cells from people with MS and healthy control subjects and found evidence of the virus in the olfactory bulb in both groups. Infection via the nasal passage is probably quite common, as is harboring a dormant reservoir of HHV-6, but in people with MS, the virus is active. The virus appears to invade the brain by infecting a type of glial cell called olfactory ensheathing cells (OECs), which nourish smell-sensing neurons and guide the virus from the olfactory bulb to their targets in the nervous system. These targets include the limbic system, a group of evolutionarily old structures deep in the brain, which is where viruses like to reactivate. The olfactory neurons and their OECs are among the few brain cells known to regenerate throughout our life. This neurogenesis may keep our sense of smell sharp, but at the cost of providing the virus the opportunity to spread.Why does the author say “Infection via the nasal passage is probably quite common…”?a)To indicate that it is extremely difficult to stop infection through the nasal passage.b)To prove that there is a greater likelihood of multiple sclerosis in people who have active strains of virus rather than those who do not.c)To illustrate that HHV-6 infects in the same manner as most other viruses do.d)To explain the finding that the samples of both the mentioned groups showed the presence of HHV-6.e)To indicate that there is a chance that the occurrence of multiple sclerosis may increase in the future if the strains of HHV-6 are activated.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Neurodegenerative diseases were once considered disorders of the mind that were deeply rooted in psychology. Now viruses rank among the environmental factors thought to trigger brain-ravaging diseases such as multiple sclerosis (MS) and Alzeimer’s disease. Human herpesvirus-6 (HHV-6), in particular, has been linked to MS in past studies. Neuroscientists have determined that the virus makes its entry to the human brain through the olfactory pathway, right along with the odors wafting into our nose. The researchers tested samples of brain cells from people with MS and healthy control subjects and found evidence of the virus in the olfactory bulb in both groups. Infection via the nasal passage is probably quite common, as is harboring a dormant reservoir of HHV-6, but in people with MS, the virus is active. The virus appears to invade the brain by infecting a type of glial cell called olfactory ensheathing cells (OECs), which nourish smell-sensing neurons and guide the virus from the olfactory bulb to their targets in the nervous system. These targets include the limbic system, a group of evolutionarily old structures deep in the brain, which is where viruses like to reactivate. The olfactory neurons and their OECs are among the few brain cells known to regenerate throughout our life. This neurogenesis may keep our sense of smell sharp, but at the cost of providing the virus the opportunity to spread.Why does the author say “Infection via the nasal passage is probably quite common…”?a)To indicate that it is extremely difficult to stop infection through the nasal passage.b)To prove that there is a greater likelihood of multiple sclerosis in people who have active strains of virus rather than those who do not.c)To illustrate that HHV-6 infects in the same manner as most other viruses do.d)To explain the finding that the samples of both the mentioned groups showed the presence of HHV-6.e)To indicate that there is a chance that the occurrence of multiple sclerosis may increase in the future if the strains of HHV-6 are activated.Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice GMAT tests.