Neurocranium Revision PDF

Neuro- cranium Sphenoid (1) Irregular, middle of skull. 4 main parts; body, pterygoid process, greater and lesser wing. Articulates with; ALL cranial bones & palatine, vomer and zygomatic. Functions; - helps form base of skull, floor of middle cranial fossa, orbital floor and na...

Neuro- cranium Sphenoid (1) Irregular, middle of skull. 4 main parts; body, pterygoid process, greater and lesser wing. Articulates with; ALL cranial bones & palatine, vomer and zygomatic. Functions; - helps form base of skull, floor of middle cranial fossa, orbital floor and nasal cavity. Temporal (2) Irregular bones, at side of cranium. Articulates with; parietal, occipital, frontal and zygomatic bones. Squamosal suture; unites squamous part of temporal bone with parietal bone. Functions; - attachment for muscle ass. with tongue and larynx; styloid process, contains middle and inner part of ear. Occipital (1) Ethmoid (1) Flat bone, back of cranium. Irregular bone, located between Articulates with; parietal bones, orbital bones and nasal cavity; temporal, sphenoid bones. within paranasal sinuses. Lambdoid suture; unites with Articulates with; frontal, sphenoid, parietal bones. vomer, inferior nasal conchae, nasal, Functions; - forms the foramen maxilla, palatine and lacrimal. magnum, attachment for muscles Sphenoethmoidal suture; unites and protection. with sphenoid bone. Functions; - forms medial wall of Frontal (1) orbit, nasal septum, root and lateral Flat bone, front of cranium. walls of nasal cavity. Parietal (2) Articulates with; parietal, ethmoid, Flat bones, top of cranium. sphenoid, lacrimal, nasal, zygomatic Articulates with; frontal, occipital, and maxilla bones. temporal and sphenoid bones. Metopic suture (if present); unites 2 Coronal suture; unites with frontal frontal bones. bone. Coronal suture; unites with parietal Sagittal suture; unites the 2 parietal bones. bones. Functions; - aids in facial Lambdoid suture; unites with expressions, structure to skull, eye occipital bone. orbits and upper face, protects Squamosal suture; unites with frontal lobe. temporal bone. Functions; - protect parietal lobe and cranial activity.