What Is a Cross Arm?

: an arm fastened at right angles to an upright (as the horizontal member of a cross or a traverse on a telephone pole)

What is cross arm in electrical?

The arms that carry the line and support the structure are called electrical cross arms. An electric arm is a fitting on the transmission tower to assist conductors and hold electric pieces of equipment such as power lines.

What is cross arm in myosin?

The middle oblique structure that connects head and tail of myosin is the neck. Head and neck together called as Cross arm. They are responsible for forming cross bridges and help in wilding of actin over myosin. The topmost area on the head of the myosin is the actin-binding site.