The sartorius the longest human muscle was so named because it is exercised when people in what sartorial occupation cross their legs while at work?

Sartorius

scientists

There are several. The major ones include the quadriceps, hamstrings, tibialis anterior, peroneus, extensor digitorum longus, gastrocnemius, soleus, adductors, sartorius, and gracilis.

Lactic acid builds up because of lactic acid fermentation.

Sartorius