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  • Question 1/9

    The largest joint in your body is your hip.

  • Answer 1/9

    The largest joint in your body is your hip.

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    Your knees get the prize for largest joints. They're also the most complex joints in your body. Three bones -- your thighbone, your shinbone, and your kneecap -- meet to form them. They’re held together by strong ropes called ligaments.

  • Question 1/9

    Your joints pass gas.

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    Your joints pass gas.

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    Noisy knees? Fingers that crack or pop? You may not need to excuse yourself, but that racket you're making may be your joints letting out gas. It escapes from liquid that helps keep your joints moving. But more serious things can make your joints sound off, too. Make sure to call a doctor if your noisy joints hurt and are swollen.

  • Question 1/9

    Every joint in your body helps you move.

  • Answer 1/9

    Every joint in your body helps you move.

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    You couldn’t swing a tennis racket, run a mile, or even eat a slice of pizza without your joints. But not all of them help you do things. The joints in your skull are fixed in place to protect your brain. The same kind of joints holds your teeth in your jawbone.  

  • Question 1/9

    If you're double-jointed, you have extra joints.

  • Answer 1/9

    If you're double-jointed, you have extra joints.

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    If you can bend, twist, or fold your fingers or arms in odd ways, you may be double-jointed. You have the same number of joints as everyone else, but yours are just more flexible. This tends to run in families and can come in handy if you’re a gymnast, ballet dancer, or musician. Sometimes having very loose joints can be a sign of a medical condition, so talk to your doctor about it, especially if it is causing you trouble.

  • Question 1/9

    How many joints do you have?

  • Answer 1/9

    How many joints do you have?

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    Joints connect the bones in your back, arms, legs, jaw, and other places. Some, like those in your hips and shoulders, are ball and socket joints: A round end of bone fits into a small, cup-shaped area of another bone.  This type of joint gives you the greatest range of motion.

  • Question 1/9

    You have hinge joints in your:

  • Answer 1/9

    You have hinge joints in your:

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    Your front door only opens one way, right? That's because it’s on a hinge. Your elbow and knee joints work the same way. You have lots of smaller hinge joints in your fingers and toes.

  • Question 1/9

    Your nose can get out of joint.

  • Answer 1/9

    Your nose can get out of joint.

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    Don't take offense, but you couldn’t get your nose out of joint if you tried. It has no joints. No one really knows for sure how this expression came about, but it’s been around since the 1500s.

  • Question 1/9

    How long do most knee replacements last?

  • Answer 1/9

    How long do most knee replacements last?

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    Surgery to replace knees, hips, and shoulders is common. In the 1970s, when knee replacement surgeries were first being done, doctors thought the new joints would last about 10 years. Now, most people get 20 years out of them. The new knee joints are made of titanium, stainless steel, and other materials. Doctors sometimes use cement to attach them to the bone.

  • Question 1/9

    This is a joint-friendly way to get fit:

  • Answer 1/9

    This is a joint-friendly way to get fit:

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    Show your joints some love. You can get a great workout and burn off breakfast with a swim or a bike ride. These activities are easier on your joints than pounding exercises like running, kickboxing, and step aerobics.

     

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    Great job! You've boned up on your joints and know how they work.

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    You have some things to learn about your joints. Study up and take this quiz again.

Sources | Reviewed by David Zelman, MD on January 25, 2016 Medically Reviewed on January 25, 2016

Reviewed by David Zelman, MD on
January 25, 2016

IMAGE PROVIDED BY:

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SOURCES:

The Library of Congress: “What Causes the Noise When You Crack a Joint?”

Kidshealth.org: “Your Bones.”

Johns Hopkins Medicine: “Joints Cracking and Popping.”

Kidshealth.org: “Bones, Muscles, and Joints.”

American College of Rheumatology: “Hypermobility (Juvenile.)”

NHS: “Joint Hypermobility.”

NASA: “As We Are Jointed Together.”

Medline Plus: “Healthy Joints for a Lifetime.”

University of Utah Health Care: “Anatomy of a Joint.”

Doeden, M. Get Your Nose Out of Joint: And Other Medical Expressions, Lerner Publications, Aug. 1, 2012.

American Academy of Orthopedic Surgeons: “Combined Knee Ligament Injuries.”

National Institute of Arthritis and Musculoskeletal and Skin Diseases: “What is Gout?”

National Institute of Arthritis and Musculoskeletal and Skin Diseases: “Questions and Answers About Gout.”

Cleveland Clinic: “Joint Replacement.”

Arthritis Foundation: “Inflammation and Stiffness: The Hallmarks of Arthritis.”

National Institute of Dental and Craniofacial Disorders: “TMJ Disorders.”

Arthritis Foundation: “16 Joint Protection Tips.”

This tool does not provide medical advice.
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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.