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What is the primary flexor of the vertebral column?
The primary flexor of the vertebral column is the rectus abdominis muscle, which is located in the front of the abdomen. It plays a key role in bending the spine forward and stabilizing the core during various activities.
How does the action of the rectus femoris differ from that of the other quadriceps muscles?
This muscle is also used to flex the thigh. The rectus femoris is the only muscle that can flex the hip. Injury to the rectus femoris muscle may result from overuse, as seen with kicking- or sprinting-related injuries. Inflammation of the muscle causes pain in the groin during physical exercises that use this muscle.
What would happen if your rectus femoris contracted?
If your rectus femoris contracts, it would help to extend your knee and flex your hip joint. This muscle is involved in movements like walking, running, and jumping.
What abdominal muscles work hard to enable you to flex your abdomen during sit-ups?
The rectus abdominis muscle primarily works to flex the abdomen during sit-ups. Additionally, the obliques and transverse abdominis muscles are engaged to stabilize the core and help assist in the movement.
What is the Agonist and antagonist in trunk flexion?
In trunk flexion, the agonist is the rectus abdominis muscle, which contracts to flex the trunk forward. The antagonist is the erector spinae muscles, which lengthen to allow the trunk to flex.
