The upper-body muscle groups are worked when one does lat pull downs. The muscle groups mainly worked are the ones in your back called latissimus dorsi. They also work other muscle groups like traps.
upper back muscles
The standing lateral raise primarily works the shoulder muscles.
Hamstring - Semimembraneous
The leg curl is a muscular resistance exercise that primarily works the quadriceps. It involves the knee joint and develops strength in the quadriceps at the front of the thigh.
Primarily the lower chest muscles
The standing lateral raise primarily works the shoulders.
the abdominal muscles
The Front Curl works with the biceps.
The leg curl and leg extension exercises strengthens two muscle groups. The two muscle groups are the hamstring muscles and the quads or quadricep muscles.
Triceps mainly, bicep,core deltoids, traps,lats all as stabilisers