Bones Flashcards
How is the axial skeleton divided
cranial and facial bones
The thin curved round cranial bones
are structurally sound
resist impact
protect the brain
absorb less force than flat surfaces
Facial bones
protect the front of the head
protect and orient the eyes
give our face its shape
allow chewing of food
Cranial bones include
frontal 2 parietal occipital 2temporal spenoid ethmoid
facial bones include
maxillary
mandible
maxilla
forms the upper jaw, houses the upper teeth and connects all face bones except mandible
mandible
lower jaw bone
only facial bone that moves
Bones of the face and skull are joined together by..
sutures
sutures
joints in which bones of the skull are bound together by strong, tiney fibers. This allows a very small amount of movement and elacticity
How are babbies heads different from adults
they are large about 1/4th body weight while adults are 1/8th
fontalels
areas where several bones join in the infant skull that are connectd by fiberous membranes composed of soft connective tissue
- ossify in early childhood (22-24 months)
ossify
turn to bone
function of fontenells
- compression of skull during child birth
- enable brain growth during late pregnancy and early infancy
Arthr/o
joint
brachi/o
Arm
