What is the function of the myelin sheath?
A) to serve as a structure for neurons
B) to monitor neural activity
C) to speed up the neural impulse
D) to produce neurotransmitters
Answer: C
Rationale: Myelin is a fatty sheath that insulates axons from one another, resulting in increased speed and efficiency of neural communication.
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Randall has difficulty in using a knife to cut the meat on his
plate, cannot manipulate buttons and zippers in dressing himself, and has difficulty in using a telephone. Randall is experiencing difficulty with a. basic aptitudes. b. adaptive behaviors. c. divergent abilities. d. kinesthetic skills.
Regarding the psychodynamic perspective, which of the following statements is FALSE?
a. This perspective remains a vibrant force in psychology today. b. Compared to Freud, neo-Freudians place less emphasis on basic drives. c. Psychodynamic principles and ideas are found in our popular culture. d. Today, only people formally trained in Freudian psychology endorse the belief that psychological problems may be rooted in childhood. e. This perspective focuses on the inner life of fantasies, wishes, dreams, and motives.