What abdominal does the snakes used for crawling?

Snakes use their abdominal muscles, specifically the rectus abdominis and oblique muscles, to facilitate their movement. These muscles contract and relax in a coordinated manner to create lateral undulations, allowing the snake to push against surfaces and propel itself forward. Additionally, some snakes employ their belly scales, called scutes, to grip the ground, enhancing their crawling ability. This combination of muscle action and scale traction enables efficient locomotion across various terrains.