Reflexes
Considered the simplest and most fundamental movements, they are relatively fixed, automatic muscle responses to particu- lar stimuli, such as the slight extension of the leg when a physician taps the knee with a small rubber hammer.
Considered the simplest and most fundamental movements, they are relatively fixed, automatic muscle responses to particu- lar stimuli, such as the slight extension of the leg when a physician taps the knee with a small rubber hammer.