Skeletal system

How can we protect our bones?

• eaingt cakes and ice creams

• doing exercises and eating healthy

• sleeping all day

Bones are made of ...

• collagen

• calcium

• minerals

• muscles

What is the name of the longest and strongest bone in our boby?

How many vertebrates do we have?

• 45

• 20

• 31

• 33

Name the two organs that the rib cage protect

• brain and lungs

• heart and bladder

• heart and lungs

What is the organ that skull protects?

How many bones does an infant have?

How many bones does an adult have?

• 200

• 109

• 206

• 300

Which are the functions of skeletal system?

• produce blood

• process the food

• support our boby

• protect our internal organs

• make our nervous work

What is the name of the bones of the spinal cord

• vertebrates

• humerus

• clavicles