An elongate ultrasound probe including a probe head with a transducer array, a handle, a flexor located between and affixed to the probe head and the handle, a flexor actuator configured to flex the flexor, and a probe head motion actuator configured to oscillate the flexor actuator and thereby oscillate the probe head. A method includes electronically vibrating a probe head, which includes a transducer array, of an ultrasound probe in connection with ultrasound elasticity imaging.