Joints

If your body were a tall building, your skeleton would be:

• The beams and joists that hold it up

• The plumbing and electrical systems

• The foundation that anchors it to the ground

• The apartments and offices inside it

Which term best describes the joints at the top of your skull?

• Motionless

• Flexible

• Rubbery

• Elastic

Which type of joint gives you the largest range of motion?

• Pivot joint

• Ball-and-socket joint

• Hinge joint

• Gliding joint

The joints in your knees and elbows are most similar to:

• The pendulum in a grandfather clock

• The wheels on an office chair

• The sliding mechanism on a drawer

• The hinge on a cupboard door

Tags

NGSS.MS-PS2-1

Which pair of joints has the most in common?

• Your ankle joints and shoulder joints

• The joints in your spine and hip joints

• Your elbow joints and knee joints

• Your wrist joints and shoulder joints

What might happen if you snapped or tore one of your ligaments?

• Your joints would not be able to move

• Your bones would be in danger of breaking

• Your joints might slide out of place easily

• You would become double-jointed

The joint that allows you to chew food is most similar to a:

• Ball-and-socket joint

• Hinge joint

• Pivot joint

• Immovable joint

A disease called osteoarthritis occurs when the cartilage between joints wears away. What can you infer about osteoarthritis?

• It prevents joints from moving smoothly

• It causes joints to dislocate easily

• It causes bones to become more brittle

• It reduces joints' range of motion

If you have a "slipped disc", you have a:

• Head injury

• Shoulder injury

• Knee injury

• Back injury

The main purpose of synovial fluid is:

• Keeping bones moist

• Lubrication

• Strengthening tendons and cartilage

• Protecting the spinal cord