« previous next »

Author Question: In some (although not all) cases of multiple sclerosis, one of the first symptoms noticed is a ... (Read 77 times)

pepyto

  • Hero Member
  • *****
  • Posts: 547
on: Jun 22, 2018
In some (although not all) cases of multiple sclerosis, one of the first symptoms noticed is a reduction in sensation from distal parts of the body, such as feet and hands. Which of the following statements best explains why this might happen?
 
  a. The fibers of the axons are reduced in diameter, so the information can't travel fast enough.
  b. Neural signaling may not work properly as a result of nervous system demyelination.
 c. The fibers of the axons are enlarged, slowing the neural transmission.
 d. The neurons have degenerated and are no longer producing neural transmission.

Question 2

A single oligodendrocyte may myelinate axons from an average of _____ different neurons.
 
  a. 2
 b. 5
 c. 10
  d. 15


lorealeza

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jun 22, 2018
Answer to Question 1

b

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

pepyto

  • Hero Member
  • *****
  • Posts: 547
Reply #2 on: Jun 22, 2018
Thank you!


lorealeza

  • Sr. Member
  • ****
  • Posts: 345
Reply #3 on: Jun 22, 2018
Happy to help


« previous next »
 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Treatment of Depression with Ketamine The graph shows the effects of ketamine on symptoms of depress Treatment of Depression with Ketamine The graph shows the effects of ketamine on symptoms of depress
Selected Vitamins: Food Sources, Functions, and Deficiency and Toxicity Symptoms (continued) Selected Vitamins: Food Sources, Functions, and Deficiency and Toxicity Symptoms (continued)
In the past year, about one in five adults in the United States reported symptoms of anxiety ... In the past year, about one in five adults in the United States reported symptoms of anxiety ...
Categories of Symptoms of Schizophrenia Categories of Symptoms of Schizophrenia
Edema is one of the symptoms of beriberi Edema is one of the symptoms of beriberi
Estimated New Cases of Selected Cancers in the USA, 2012 Estimated New Cases of Selected Cancers in the USA, 2012
Video: HDL (high density lipoprotein)

For a complete list of videos, visit our video library