What are bones?
Rigid organs that are in the skeletal system
Blood cells have ________ inside the bone. This repairs the damage blood cells.
Bone marrow
True or False: The skeletal system provides support for the body
True
The rib cage protects ________
the heart and lungs
The spinal column protects ________
the spinal cord
What are joints?
Joints are places where bones are together.
Can you give one example of a fixed joint?
The skull and the pelvis are fixed joints.
What are muscles?
Muscles help me move my body
What are smooth muscles?
Smooth muscles move involuntarily and they help the digestive system and arteries.
What are cardiac muscles?
Cardiac muscles help pump blood from the heart to the body
What are skeletal muscles?
They are around bones and help us move.
