Final answer:
Endovaginal transducers utilize higher frequency ranges than transabdominal transducers because greater penetration and higher resolution are required to image the structures closer to the transducer.
Step-by-step explanation:
Endovaginal transducers utilize higher frequency ranges than transabdominal transducers because greater penetration and higher resolution are required to image the structures closer to the transducer. Since the transvaginal transducer is inserted directly into the vagina, the structures being imaged are in close proximity to the transducer. Therefore, a higher frequency is needed to obtain detailed images.