accessory flexor muscle的用法和样例：
- The former Inter man limped off during the1-1 draw after damaging the flexor muscle in his right thigh and will undergo scans on Tuesday, which will assess the exact extent of the injury.
- After 8 weeks of training,knee extensor and flexor muscles strength can be improved,but knee extensor muscle torque increase more than flexor muscle.
- tendinous sheath of long flexor muscle of thumb
- short flexor muscle of great toe