Answer:
The given blanks can be filled with suture and brain.
Explanation:
A suture is a kind of fibrous joint, which is only witnessed in the cranial suture. The bones are held in combination by Sharpey's fibers. The part of the skeleton, which comprises the head and trunk bones of a vertebrate is known as the axial skeleton. It comprises of the eighty bones. The suture joint is the immovable joint, which holds tightly the bones of the axial skeleton in order to safeguard the brain.