Allergies are due to
A. transplanted tissue that is not properly matched.
B. antibodies being produced for substances that ordinarily would do no harm to the body.
C. not enough antibodies formed due to insufficient blood cell production.
D. an excess number of antigens.
Answer: B
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In quiet breathing,
A) inspiration and expiration involve muscular contractions. B) inspiration is passive and expiration involves muscular contractions. C) inspiration involves muscular contractions and expiration is passive. D) inspiration and expiration are both passive processes. E) only the diaphragm is active during inhalation.
A myosin head that is "cocked" and ready to bind to actin is associated with ______.
A. ADP B. Pi C. ATP D. two of the above
The tissue that covers all body surfaces is ________ tissue.
Fill in the blank(s) with the appropriate word(s).
Which of the following reduces the angle of a joint?
a. flexion b. rotation c. abduction d. extension e. adduction f. circumduction