The Skeleton Flashcards
How many bones are there in the adult body
206
The skull is divided into:
8 cranial bones, 13 facial bones and 1 mandible
Unpaired cranial bones
Ethmoid, in between eyes, frontal, forehead, occipital, the back of the head and sphenoid, behind eyes
Paired cranial bones
Parietal, top of the head and temporal, sides of head
Paired facial bones
Maxilla, above mouth, nasal, top of nose, lacrimal, sides of nose behind maxilla, zygomatic, cheek bones, palatine, hard palate and inferior nasal conchae, lowest scroll structure in nasal cavity
Unpaired facial bone
Vomer, below ethmoid bone
Sutures
Immobile joints between skull bones, coronal suture joining frontal and parietal bones, the lambdoid joining occipital and parietal bones, sagittal joining parietal bones and squamous between temporal and parietal bones
Paranasal sinuses
Air filled spaces around the nasal cavity, serve to humidify and warm inhaled air
Orbits
Bony cavities that hold and protect the eyes