Question

Explain how the muscles of the arm brings about movement
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Answer 1

Answer:

by the action of actin ,myosin and troponin.the essential element for muscle is calcium.when we move hand calcium released and it bind with troponin and freed atp binding site of myosin.muscle contraction is a energy required process

Answer 2

Muscles That Move the Forearm
The muscles of the forearm
Forearm Muscles
Let's face it - most people would like to have muscular arms. Lifting weights can do the trick, as it works many of the muscles that move the forearm.

Using anatomical terminology, the arm specifically refers to the upper appendage from the shoulder down to the elbow, and the forearm specifically refers to the lower appendage from the elbow down to the wrist. Muscles in the shoulder are responsible for moving the arm, and muscles in the arm are responsible for moving the forearm.

Several muscles are responsible for various movements of the forearm, and they're all inserted on the forearm itself, while they originate from more proximal locations. Most of the muscles that move the forearm originate from the humerus and insert on the forearm itself. However, the biceps brachii and triceps brachii are two noteworthy exceptions, as they originate from the scapula and insert on the forearm. This lesson will identify and describe the various muscles that move the forearm. We will discuss them in groups based on their general action.