Which statement is true of the blood-brain barrier?
A. The barrier is uniform throughout the brain.
B. The barrier is selectively permeable.
C. The barrier functions to regulate the chemical composition of the cerebrospinal fluid.
D. The barrier is formed by microglia.
Answer: B
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Muscular development follows which developmental trends?
a. Neither proximodistal nor cephalocaudal trends b. The proximodistal trend but not the cephalocaudal trend c. The cephalocaudal trend but not the proximodistal trend d. Both the proximodistal and cephalocaudal trends
___________ is when a baby is wrapped tightly in clothes or a blanket so that his arms and legs cannot move, in order to soothe him
Sneaking Securing Snuggling Swaddling
Which of the following statements about advance medical directives is true?
A) They are not recognized in the United States or Canada. B) U.S. states recognize two types of advance directives: a living will and a durable power of attorney for health care. C) They guarantee personal control for terminally ill patients and those in persistent vegetative states. D) A living will is more flexible than a durable power of attorney for health care.
Race, class, and gender are __________
A) important elements of socialization B) not important to socialization C) important only to the socialization of children D) important only to the socialization of adults