Functions of the spleen include all of those below except ________.
A) removal of old or defective blood cells from the blood
B) forming crypts that trap bacteria
C) storage of blood platelets
D) storage of iron
B) forming crypts that trap bacteria
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What is the action of the muscle labeled C?
a) laterally flex and rotate head b) extends head c) depresses tongue d) protracts mandible (as in opening the mouth) e) elevates the mandible (as in closing the mouth)
The volume entering or leaving the lungs during a single breath is called the
a. tidal volume. b. expiratory reserve volume. c. inspiratory reserve volume. d. residual volume. e. inspiratory capacity.
Which muscle contracts when one smiles?
A. Zygomaticus major B. Buccinator C. Frontal belly of the occipitofrontalis D. Orbicularis oris E. Depressor anguli oris
What type of birth control is most effective for preventing sexually transmitted infections?
A. Copper IUD B. Spermicides C. Condom D. Hormone pill E. Diaphragm