Extremity equivalencies

[tyciol]

I've been thinking, if most of the hamstrings, like the long head of the biceps femoris, is equivalent to the biceps brachii, is the short head equivalent to the brachialis?

For having a more distal belly, is the gastrocnemius equivalent to the brachioradialis in terms of flexors?

Though I don't know the rotational attributes of the gastrocs, and they have 2 heads, odd.