skeletan system

how many bone is there in the skull

• 50

• 22

• 35

• 43

white blood cells and red blood cells are produced by the the bone marrow in hallow bones

• true

• false

the femur is the longest bone in our body

• true 

• false

a joint is a meeting point of two bones held together by strong tissues called ligaments

• true 

• false

the hinge joint is immovable

• true 

• false

how many bones does an adult have

• 500

• 306

• 206

• 1563