Brain injuries produced by blows that do not penetrate the skull are called
A) closed-head injuries.
B) contrecoup injuries.
C) hematomas.
D) contusions.
E) lacerations.
Answer: A
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Children’s relationships with siblings are often characterized by a high degree of _________
a. co-regulation b. ambivalence c. gatekeeping d. emotional intensity
Which of the following is NOT true of the origins of homosexuality?
a. There is compelling evidence for environmental explanations. b. Children who grow up in gay or lesbian families are predominantly heterosexual. c. It is difficult to determine whether brain differences are a cause or a consequence of sexual orientation. d. There may be genetic links to homosexuality.
Franklin is listening to music with the volume fairly low; Cecilia is listening to music with the volume turned to the maximum. Based on what is known about action potentials, you could predict that for these two individuals, the action potentials:
a. will be the same due to the all-or-none principal b. in Cecilia's nervous system will travel more quickly because the incoming signal is more intense c. in Franklin's nervous system will be weaker because the incoming signal is less intense d. in Franklin's nervous system will travel a shorter distance because the incoming signal is less intense
Once information is received at the dendrites, it next flows into the
a. soma. b. axon. c. myelin sheath. d. glial cell.