FCAT Grade 8 Science Assessment Practice Questions

Category - FCAT Science Assessment Grade 8

Raising the arm sideways is the job of which muscles?
  1. Deltoids
  2. Pectoralis
  3. Trapezius
  4. Adductors
Explanation
Answer: A - The job of raising the arm sideways is performed by the deltoids. In particular it is the medial deltoid, which is normally the strongest. The posterior and anterior deltoids twist the arm forward and backward.
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