For each of the following questions, correctly select and mark the answer from t

Question

For each of the following questions, correctly select and mark the answer from the list of choices provided There is only one correct answer for each question. Place in the correct chronological order the following events of an Action Potential. 1. Depolarization of membrane to threshold 2, opening of voltage-gated channels 3. Depolarization phase (Na^+ Influx) 4. Closing of Na channels 5. Repolarization phase (K^+ efflux) 6. Closing of K^+ channels a 1.4, 2, 5, 36 b, 2, 3, 5, 6, 4, 1 c, 1, 2, 3, 4, 5, 6 d. 6, 5, 4, 3, 2, 1 e, 1, 4, 2, 3, 5, 6 Which of the following statements are accurate or TRUE? a. Oligodendrocytes & Neurolemmocytes (Schwann cells) play the same role as the insulators myelinators of either the CNS or PNS. b. A resting tremor would be seen in an individual with damaged or non-functional Basal nuclei. c. Plasticity in the brain is seen more prevalently in younger people with more permanence seen as individuals age (or grow up). d All of the above e. Only b& c Which of the following structures are considered part of the "BRAIN"? 1. Thalamus 2, Pons 3, Basal nuclei 4, Cerebellum 5. Insular lobe of cerebrum 6. Medulla oblongata a, 1, 3, 5 b, 2, 4, 6 c. 1, 2, 4, 6 d, 1, 3, 4, 5, 6 e, 1, 2, 3, 4, 5, 6

Explanation / Answer

65. answer: C: 123456

Action potential is change found in the electrical potential when an impulse travels along the membrane of a nerve or muscle cell

66. Answer: D: all of the above

oligodendrocytes are found in the CNS and Schwann cells in the PNS.

Resting membrane is due to decreased dopaminergic activity in basal ganglia

Plasticity is more in younger children

67. Answer:E: 123456

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