Skeleton System

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

• a clock

• a screw

• a wheel

• a door hinge

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

• joints would not move

• bones might break

• joints might slide out of place

• you would become double-jointed

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

• ball-and-socket joint

• hinge joint

• pivot joint

• immovable joint

What advantage do we gain from the fact that bones are hollow?

• We can move around easily

• Our bones don't fracture easily

• Our bones can make marrow easily

• Our internal organs receive more support

What is the main function of bone marrow?

• Supporting internal organs

• Keeping the spine straight

• Storing minerals

• Producing blood cells

Which pair of joints has the most in common?

• ankles and shoulders

• spine and hips

• elbows and knees

• wrists and shoulders

Tags

NGSS.MS-LS4-2

The main purpose of synovial fluid is:

• keeping bones moist

• lubrication

• strengthening tendons & cartilage

• protecting the spinal cord

How many bones are in an adult body?

• 600

• 206

• 300

• 210

What are the ends of bone covered with that helps reduce friction when two bones are rubbed together?

• periosteum

• ligament

• tendon

• cartilage

Which is not a function of the skeletal system?

• shape and support

• movement

• protection

• gas exchange