Axial skeleton Flashcards
What is the axial skeleton composed of?
Skull, vertebral column, sternum, and ribs
What is a suture?
Interlocking immovable joint
How many skull bones are cranial bones?
8
What is the function of cranial bones?
- Protect the brain
- Allow attachment of head and neck muscles
- House and protect special sense organs
How many facial bones are there?
14
What is the function of the facial bones?
- Provide passageway for air and food
- Anchor site for teeth
- Anchor site for muscles to the face
- Form cavities for the special sense organs
Where is the frontal bone?
The forhead
Where is the parietal bone?
Side of skull (goes around the top as well)
Where do the parietal bones join together at?
The sagittal suture
Where do the parietal and frontal bones meet at?
The coronal suture
Where is the temporal bone?
Behind the ear
Where do the parietal bones and temporal bones meet at?
The squamous suture
Where is the occipital bone?
Back of head
Where does the occipital bone and parietal bones meet at?
Lambdoid suture
Where are the occipital condyles located?
Bottom of the occipital bone (down on the bottom of the skull)
Where is the external occipital exuberance located?
Along midline of occipital bone (lump you can feel in the back of your head)
What is the sphenoid bone?
A bone located at the bottom of the cranial that connects with all the other cranial bones
Where is the ethmoid bone located?
Deep in the front part of the cranium (behind the nose and between the eyes)
What is the cribriform plate?
A bone that forms the roof of the nasal cavity
What is the cribriform formia?
A bone that sensory neurons send their signals to the brain through
What is the top part of the sternum?
Manubrium
What is the middle part of the sternum?
The body
What is the end of the sternum called?
Xiphoid
Where is the mastoid processes located?
Below the ear (part of the temporal bone)
What is the function of the mandibular fossa?
Connects mandible to temporal bone (part of the temporal bone)
