Of the following muscles that work the hand, which one runs from the humerus to the phalanges and extends the fingers and wrist?
A) palmaris longus
B) flexor digitorum superficialis
C) extensor carpi radialis brevis
D) extensor digitorum
Answer: D) extensor digitorum
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Which of the following statements about the lipid bilayer portion of the plasma membrane is FALSE?
a. Some membrane phospholipids form transmembrane channels that allow ion movement. b. The lipid bilayer defines the boundaries of the cell. c. The lipid bilayer forms a permeability barrier to polar and charged substances. d. The lipid bilayer confers fluidity to the plasma membrane. e. All of the above statements are true.
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What is largest artery in the body?
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