Anatomy: The Skeletal System

How many bones make up the skeletal system?

• 260

• 206

• 602

• 216

What is true about the skeletal system?

• Includes bones, tendons, and ligaments

• Rigid and inflexible

• The axial skeleton contains the arm and leg bones.

• There is really no purpose to the skeletal system.

All bones ARE living organs with their own cells and blood supply.

• True

• False

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

How many joints does the body have?

• Less than 400

• More than 400

• Exactly 400

• Exactly 206

_________________ are movable points that allow the skeleton to move.

• eyes

• muscles

• joints

What is the main purpose of flat bones?

• To allow you to lay down.

• To give you a lot of movement.

• To give your organs protection.

• To make you grow.

What are two other names for the backbone?

• spindle

• spine

• vertebral column

• invertebrate

How far does your backbone reach?

• From the top of your skull to the tips of your toes.

• From your shoulders to your bottom.

• From one side of your body to the other.

• From the base of your skull to the bottom of your pelvis.

The skeleton keeps your eyes fixed in place.

• True

• False

How come the skeleton isn't too heavy to move?

• Bones are actually hollow (empty) inside.

• Bones have two layers: a spongy outer-layer and a hard, dense inner-layer.

• Bones have a tough, dense tissue on the outside and a light-but-strong spongy bone on the inside.

• Our bones are like bird bones, brittle.