What is the name of muscle display in bodybuilding competition?

In bodybuilding competition, the seven movements are stipulated as follows.

Biceps abductor

Open your feet naturally, raise your arms, bend your elbows to shoulder height, clench your fists with both hands, and contract your biceps and muscles. It mainly shows the complete biceps, the front and back of biceps, and the discrimination between biceps and other muscles is also in the observation range. Abductor latissimus dorsi

Open your feet naturally, put your fists at a low waist, then stretch your latissimus dorsi and contract the muscles in front of your body. This paper mainly shows the complete latissimus dorsi muscle, and observes the stretching degree of the muscle and whether it forms a V-shaped trunk. Look at the whole first, then pay attention to the details of the muscles. 3. Side chest

Bend your right hand with a fist, hold your right wrist with your left hand, hold your chest out, bend your knees and touch the ground with your right leg, and contract the leg muscles, especially the biceps femoris and calf muscles. It mainly shows the plump pectoralis major, and the lateral morphology of thighs and calves is also the standard for observation. 4. Stretch the biceps brachii. The hand movement is the same as the biceps brachii stretching forward. Point your right foot to the ground, lift your heel and support it backwards, and contract the muscles of your hands, shoulders, back, thighs and calves. The main performance is the plump biceps, and more muscles need to be observed than all other prescribed movements. 5, abduction latissimus dorsi, hand movements are the same as abduction latissimus dorsi, the left toe touches the ground, the heel is lifted and supported backwards, the latissimus dorsi is stretched as much as possible, and the calf muscles are contracted hard. It mainly shows the full latissimus dorsi, and the right leg has been shown in the previous action. This action requires efforts to show the left leg. 6. Spread the triceps sideways, put your hands behind your back, hook your fingers with your hands, contract your left arm to expose the triceps brachii, hold your chest out, bend your knees, put your toes on your left leg, and contract the muscles of your abdomen, thighs and calves. It mainly shows the complete triceps, and also observes the lateral morphology of thigh and calf muscles. 7. Spread the abdomen and thighs, put your hands behind your head, lean forward slightly like a chest pull, contract the abdominal muscles, stretch one leg forward, and contract the muscles that stretched your legs before. Mainly show the muscles of abdomen and thigh, and observe the body curve, muscle lines and balanced development of muscles.