True or False: All bones are made of the same materials.

• True

• False

The soft tissue that fills the middle of bones is called--

• patella

• marrow

• fibula

• the compact bone

True or False: Newborn babies and adults have the same number of bones.

• True

• False

True or False: Bones in a human body are living and growing.

• True

• False

What allows bones to move in many directions?

• The joints

• The nerves

• The tissue

• The muscles

If this bone is damaged, a human might become paralyzed.

• The spine

• The ribs

• The skull

• The tibia

What part of the skeletal system acts like a shield for our heart and lungs?

• The femur

• The ribs

• The ellipsoid

• The spinal column

Which type of blood cell helps fight germs?

• Red blood cells

• White blood cells

Which type of blood cell carries oxygen to various parts of the body?

• Red blood cells

• White blood cells

The majority (95%) of our blood cells are formed in--

• The brain

• Bone marrow

• Spongy bone

• The heart