23. Why is losing myelin in multiple sclerosis so devastatin ls in the spaces pr

Question

23. Why is losing myelin in multiple sclerosis so devastatin ls in the spaces previously occupied by the myelin halts a. A lack of sodium channe action potentials. b. The loss of myelin causes action potentials to move slower c. The loss of m much sodium to enter, overwhelming the sodi um- potassium pump The loss of myelin allows too much potassium to potassium pump overwhelming the sodium- d. 24. The spike-initiation zone is sometimes synonymous with the a. axon hillock. b. soma. c. axon terminal. d. dendritic spine. 25. One rationale for studying mirror neurons in autism spectrum di sorder (ASD) is imitation deficits in children with ASD. a. b. balance deficits in children with ASD. c. sensory deficits in children with ASD. d. visual processing deficits in children with ASD h of the following non-invasive techniques is not used to record from or image the brain? a. Transcranial magnetic stimulation (TMS) b. Functional magnetic resonance imaging (fMRI c. Electroencephalogram (EEG) d. Positron emission tomography (PET) are released by postsynaptic neurons to the axons of presynaptic neurons, where they 27 affect relevant receptors. a. Anterograde neurotransmitters b. Retrograde neurotransmitters c. Reverse neurotransmitters d. Upstream neurotransmitters 28. In double blind studi do not know if an injection contains a drug or a placebo. es only the patients receiving placebo a. b. patients receiving drug or placebo c. only the patients receiving the drug d. both the patients and researchers 29. The need for the drug to maintain physiological functions is called a. drug dependence b. pharmacodynamic tolerance c. behavioral tolerance. d. drug sensitivity.

Explanation / Answer

23. The correct answer is Option B. The lack of myelin causes action potential to move slower than they should.

24. The correct answer is Option A. The axon hollow zone is synonymous with the spike initiation zone.

18. The correct answer is Option A. Studying mirror neurons of individuals with ASD is to identify imitation deficits.

19. The correct answer is Option C. The EEG does not record images of the brain.

Please post the other questions separately as we are supposed to answer just one question or four sub parts of a question.

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.