8Bones Flashcards
Lower jaw bone; contains lower teeth; forms chin; the M in TMJ
Mandible
Articulates with the temporal bone to form a freely movable joint
Mandible
Opening in the temporal bone for the ear
External Auditory Meatus
Upper jaw bone; contains upper teeth
Maxilla
Cheekbones; forms part of the orbits of the eyes
Zygomatic Bones
Forms top and sides of the skull
Parietal
Forms bony structure of the nasal cavity
Ethmoid
Forms the floor and back wall of the cranium; the condyles of this bone sit on the atlas
Occipital
The large hole in this bone is called the foramen magnum
Occipital
Forms the posterior part of the hard palate and the floor of the nasal cavity
Palatine bones
Butterfly-shaped bone that forms part of the floor and the sides of the cranium; the sella turcica houses the pituitary gland
Sphenoid
Forms forehead; articulates with the parietal bones at the coronal suture
Frontal
Means “little fountain” the baby’s soft spots
Fontanels
On the sides of the head close to the ears; the T in TMJ; contains external auditory meatus, styloid process, zygomatic process, and mastoid process
Temporal
First seven pairs of ribs; closest to clavicle; attach directly to sternum by the costal cartilage
True ribs
Next 5 pairs of ribs; ribs that attach indirectly to the sternum
False ribs
Last 2 pairs of false ribs; ribs that do not attach to the sternum
Floating ribs
Lower tip of the sternum
Xiphoid process
The depression on the superior border of the manubrium
Suprasternal notch
The part of the sternum closest to the collarbone
Manubrium
The largest part of the sternum; located between manubrium and the xiphoid process
Body