0 a muscle that moves an arm, leg, or other body part into a straight position from a bent one -- 伸肌
Large longitudinal extensor and flexor muscles derived from the longitudinal body wall muscle in the forebody extend into the hindbody.
The type of contracted muscle (flexor/ extensor) determines the movement direction, the amplitude determines the opening/closing speed.
In the upper extremities, wrist and finger extensors and deltoids were the most affected muscles.
The gait command is in fact a bit string of "0" and "1" indicating the "off" and "on" states of the grippers and extensors.
This could be caused by short length of flexors and extensors muscle groups and/or lack of muscular power.
An extensor muscle is used in the proportional position control of the digit flexion; the greater the tension the wider the hand opens.
Large longitudinal extensor and flexor muscles project into the hindbody where they connect to the body wall or end blindly.
This causes triceps weakness and increased involvement of wrist extensors and finger extensors.
