« previous next »

Author Question: Explain why chemical stimulation is sometimes preferred over electrical stimulation. What will be ... (Read 52 times)

jon_i

  • Hero Member
  • *****
  • Posts: 549
on: Jun 22, 2018
Explain why chemical stimulation is sometimes preferred over electrical stimulation.
 
  What will be an ideal response?

Question 2

Explain how autoradiography can be used to measure the activity of brain cells.
 
  What will be an ideal response?


lkoler

  • Sr. Member
  • ****
  • Posts: 358
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: Chemical stimulation can be used to excite cell bodies rather than both cell bodies and axons of passage.

Answer to Question 2

Answer: Brain cells require glucose as fuel for activity. 2-DG , like glucose, is taken up into neurons, but cannot be used for energy. If a radioactive version of 2-DG is injected into an animal, radioactive 2-DG molecules will accumulate in brain as a function of the relative activity of those cells. Autoradiography will reveal the presence of radioactive molecules in the brain, with a more intense signal in regions that were more active, and a less intense signal in less active regions.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

jon_i

  • Hero Member
  • *****
  • Posts: 549
Reply #2 on: Jun 22, 2018
Thank you


lkoler

  • Sr. Member
  • ****
  • Posts: 358
Reply #3 on: Jun 22, 2018
No problem :)


« previous next »
 

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Deep Brain Stimulation Deep Brain Stimulation
Testing the Chemical Characteristics of Urine with Reagent Strips Testing the Chemical Characteristics of Urine with Reagent Strips
The motor homunculus: the somatotopic map of the human primary motor cortex. Stimulation of sites in ... The motor homunculus: the somatotopic map of the human primary motor cortex. Stimulation of sites in ...
The NIOSH Pocket Guide entry for gasoline. Useful information includes health effects and chemical ... The NIOSH Pocket Guide entry for gasoline. Useful information includes health effects and chemical ...
Electrical Conduction System of the Heart Electrical Conduction System of the Heart
Explain how it can be desirable from an intertemporal perspective for a country run a current ... Explain how it can be desirable from an intertemporal perspective for a country run a current ...
Video: Medullary osmotic gradient: countercurrent multiplier, urea recycling & vasa recta countercurrent exchange

For a complete list of videos, visit our video library