the quadriceps
The leg extension exercise primarily targets the quadriceps muscle group in the front of the thigh.
your calf...
Back extension primarily works the muscles in the lower back, specifically the erector spinae muscles.
The standing lateral raise primarily works the shoulder muscles.
Hamstring - Semimembraneous
Quadriceps muscle or thigh muscle.
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.
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.
The neutralizer muscle of the leg extension is primarily the hamstring group, particularly the biceps femoris, semitendinosus, and semimembranosus. These muscles help to stabilize the knee and prevent excessive extension during the leg extension exercise, ensuring proper movement mechanics and joint safety. By counteracting the action of the quadriceps, they maintain balance and control throughout the motion.
The preacher curl exercise primarily targets the biceps muscle group.
The tricep pushdown exercise primarily targets the triceps muscle group.
The exercise "skull crushers" primarily works the triceps muscle group in the arms.