Tight hamstrings are a runner's worst nightmare, but what's the name of the group of muscles on the front of your thighs?

Biceps and Triceps are both located in the upper arms while calves are in the lower legs. Quadriceps are the four large muscles on the femur that extend to the knees.

Asked by Rachel Bortles · Last updated 5 years ago · 108.5K views · SOURCE