Which of the following equipment does not facilitate visual examination of body parts?

The electrocardiograph is primarily designed to measure and record the electrical activity of the heart, making it a vital tool for assessing cardiac function rather than facilitating direct visual examination of body parts. It provides important diagnostic information through electrical signals but lacks the capability to visualize anatomical structures directly.

In contrast, the endoscope is specifically designed for visual examinations, allowing practitioners to look inside hollow organs or body cavities using a flexible tube with a camera. Similarly, an ultrasound machine utilizes sound waves to create images of internal body structures, facilitating visual examinations of soft tissues and organs. The X-ray machine uses radiation to produce images of the body’s internal structures, which also allows for visual assessment.

Thus, while the other pieces of equipment are integral for visual examinations, the electrocardiograph does not serve this function, focusing instead on cardiac electrical activity.