Which muscle tendon is stretched in patellar tendon reflex?: (A) Biceps femoris, (B) Quadriceps femoris, (C) Adductor magnus, (D) Quadratus
Answer is B. Quadriceps femoris stretches in patellar tendon reflex. Striking of the patellar tendon with a reflex hammer just below the patella stretches the muscle spindle in the quadriceps muscle.