Prompt:
An educational image displaying the major muscle groups in the human body. The image should include labels for each muscle group and show them in different colours for easy distinguishing. The illustration includes the triangular trapezius in the upper back, the broad latissimus dorsi in the mid to lower back, the peaked biceps in the upper arm, the bulky quadriceps in the front of the thigh, and the calf-defining gastrocnemius in the lower leg.
