Question

What are alary muscles? Where are they present? (K)

Answer 1

alary muscles. a series of small muscles found in the pericardial wall of insects. Their contraction causes blood to flow into the pericardium from the perivisceral cavity and then into the heart

Answer 2

Alary muscles:

• "Alary muscles" are a series of "small muscles" which is found in "pericardial walls of the insects". The contraction causes the blood in the right direction from the perivisceral cavity and into the heart.
• The muscle fibers projecting out of the "small point of origin" on the "lateral wall of the dorsum" to the "broad insertion on the heart" in many insects, presenting the typical delta appearance.
• All agree with the pair of Ostia, which allows the hemolymph to flow in the heart in the abdomen.