Which is the primary muscle used in smiling, when the corners of your moth lift upward?
A) orbicularis oculi
B) orbicularis oris
C) masseter
D) zygomaticus
Correct Answer:
Verified
Q6: The plasma membrane, or phospholipid bilayer, of
Q7: A sustained muscle contraction is referred to
Q8: Muscle cells can store oxygen using the
Q9: Which of the following muscles is the
Q10: Contraction of the diaphragm results in
A)expiration.
B)inspiration.
C)a flat
Q12: The broad sheet of fibrous connective tissue
Q13: When breathing, the muscles that surround the
Q14: Fibrosis of muscle tissue is caused by
A)inflammation
Q15: A graded response occurs when
A)multiple motor units
Q16: A weight lifter is attempting a new
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