Module 3B: Axial Skeleton Flashcards
how many bones are there in the human skeleton?
206
how many bones are there in the human body at birth?
approximately 300
what does the axial skeleton form?
a longitudinal axis of the body
what does the axial skeleton support?
the head, neck and trunk
what does the axial skeleton protect?
the brain, spinal cord and thoracic organs (like the heart and lungs)
the bones of our skull form the framework of what?
our face
the bones of our skull contain cavities for?
special sense organs (taste, smell, sight)
the bones of our skull provide openings for?
air and food passage
the bones of our skull anchor muscles for?
facial expression, which we use to show our feelings
the bones of the skull are divided into what two groups?
- cranium bones (top of skull)
- facial bones
what are our cranium bones?
- frontal
- occipital
- sphenoid
- ethmoid
- 2 parietal
- 2 temporal
what are our facial bones?
- mandible
- vomer
- 2 maxilla
- 2 zygomatic
- 2 nasal
- 2 lacrimal
- 2 palatine
- 2 inferior nasal concha
how many bones are there is the skull?
22 bones
where is the frontal bone?
the forehead
where is the parietal bones?
two sides of the top of our head back from the forehead
where is the temporal bones?
inferior to the parietal bone. right where our temples are
where is our nasal bone?
top part of our nose (front, center of skull)
where is our sphenoid bone?
back of boney orbit where our eyes go
- more on the lateral aspects of skull
- it is ONE bone
where is our zygomatic bones?
our cheekbones
where is our maxilla bones?
forms side of our nose, upper jaw where our top teeth attach
where is our vomer?
divides the nasal cavity into two
where is our mandible?
our lower jaw
what bone is the only moveable bone in our skull?
the mandible
can we move suture joints?
no