« previous next »

Author Question: In some (although not all) cases of multiple sclerosis, one of the first symptoms noticed is a ... (Read 24 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?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Directional drilling taps multiple oil deposits Directional drilling taps multiple oil deposits
Iron Deficiency Symptoms Iron Deficiency Symptoms
Macromolecules can have distinct binding sites for multiple ligands Macromolecules can have distinct binding sites for multiple ligands
Symptoms of dementia associated with Alzheimer disease are progressive. Symptoms of dementia associated with Alzheimer disease are progressive.
Signs and Symptoms of Drug Abusers Signs and Symptoms of Drug Abusers
Estimated New Cases of Selected Cancers in the USA, 2012 Estimated New Cases of Selected Cancers in the USA, 2012
Video: Methods that regulate pH

For a complete list of videos, visit our video library