Multiple choice

Alary muscle is associated with

  1. heart and circulation

  2. Malpighian tubules and excretion

  3. trachea and respiration

  4. Both (1) and (2)

  5. None of the above

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The heart may be suspended by alary muscles, contraction of which expands the heart and increases blood flow into it.