Axial Skeleton Flashcards
What 4 things are associated with the axial skeleton?
- skull
- hyoid bone (floating)
- vertebrae
- thoracic cage
What 8 things are associated with the appendicular skeleton?
- shoulder girdle
- arm
- forearm
- hand
- coxa
- thigh
- leg
- foot
The axial skeleton supports and protects the ____________, _________ ______ and _________ _________ within the ____________.
brain, spinal cord, and vital organs within the thorax
The axial skeleton housing special ___________ organs.
sense
How many bones are in the skull?
28
Name the auditory ossicles (6):
- malleus (2)
- incus (2)
- stapes (2)
Name the 8 cranial bones (8):
1.) occipital
2.) parietal (2)
3.) frontal
4.) temporal (2)
5.) ethmoid
6.) sphenoid
Name the facial bones (14):
- Inferior concha (2)
- maxilla (2)
- mandible
- nasal (2)
- lacrimal (2)
- vomer
- zygomatic (2)
- palatine (2)
Name the 4 sutures:
1.) sagittal
2.) coronal
3.) lambdoidal
4.) squamous
What is significant about the mastoid process (in terms of injury diagnosis)?
if there is a cranial fracture, blood and fluid with accumulate there and show a bruise
Where is the glabella?
in the middle of your eyebrows
septum = ?
divider
foramen= ?
opening/hole
fossa= ?
depression
condyle= ?
knuckle/roundness
What is the sella turcica?
- part of the sphenoid
- 4 sided pocket where the pituitary gland sits
What are the sutural (wormian) bones?
- also known as intrasutural bones
-extra bone pieces that appear in the skull’s sutures or joints. - They are irregular, isolated bones that develop from extra ossification centers in the cranium
What are the regions between the cranial bones that are thickened, fibrous membrane remnants but not yet ossified?
Fontanels
What are also referred to as the “soft spots” on a baby’s head?
Fontanels
At how many months of age do fontanels close?
15
What shape are newborns’ head due to temporary deformation with fontanels?
cone-shaped
Sinuses have mucous lining that helps to ___________ and _______________ inhaled air.
humidify and warm
Do sinuses cause the skull bones to be heavier or lighter?
lighter
Sinuses provide _________________ to the voice.
resonance/tone