An ultrasound
A) uses x-ray photography to make a picture of the unborn child.
B) can be heard by the human ear.
C) yields a picture called a CT-scan.
D) bounces sound waves off of the fetus.

Question

Quizplus · Accepted Answer

Ultrasound imaging, also known as sonography, uses high-frequency sound waves to produce images of structures within the body, including an unborn child. These sound waves bounce off the fetus and are captured to create an image, but they are not audible to the human ear and do not involve x-ray photography or result in a CT-scan.

An Ultrasound