Skip to content
Quiz: A new wireless heart monitor is about the size of a:

You are correct!


The correct answer is: Testicular

The dime-sized heart monitor, inserted into the pulmonary artery, uploads data to the doctor's web site.


WebMD Favorites

on Twitter Follow Us

Most Recent

on Facebook Follow Us

Featured Health Topics


Multiple Sclerosis Facts

Learn about MS symptoms, possible causes of the disease, and how it attacks the body.


Subscribe to free WebMD newsletters.

  • WebMD Daily

    WebMD Daily

    Subscribe to the WebMD Daily, and you'll get today's top health news and trending topics, and the latest and best information from WebMD.

  • Men's Health

    Men's Health

    Subscribe to the Men's Health newsletter for the latest on disease prevention, fitness, sex, nutrition, and more from WebMD.

  • Women's Health

    Women's Health

    Subscribe to the Women's Health newsletter for the latest on disease prevention, fitness, sex, diet, anti-aging, and more from WebMD.

By clicking Submit, I agree to the WebMD Terms & Conditions & Privacy Policy

Symptom Checker
Take the first step and see what could be causing your symptoms. Then learn about possible next steps.
Most Common Symptoms
Pain or discomfort Muscle cramps or spasms Tenderness to touch Numbness or tingling Bloating or fullness
BMI & Healthy Weight Calculator
Calculate your BMI and Healthy Weight Range.
Your BMI Results
Underweight Healthy Overweight Obese
BMI, or body mass index, is a way to see if you weigh more -- or less -- than doctors believe is healthy for someone your height.

WebMD Magazine App