Axial Skeleton, Frontal, Parietal, Ethmoid Bones

features, functions, purpose

Supraorbital Margin F

Superior rim of orbit to protect eye

Supraorbital Foramen F

branch of cranial V nerve, and supraorbital artery passes through to supply eyebrow, lid, frontal sinus

Superciliary Arch F

ridge for eyebrow

Frontal Sinus F

lightens the bone and acts as resonating chamber for speech

Parietal P

Superior Temporal Line - ORIGIN of temporalis muscle

Cribriform plate E

superior surface containing olfactory foramina

olfactory foramina E

passageways for olfactory nerve Cranial nerve I axons

Crista Galli E

attachment for falx cerebri (fold of dura matter) to stabilize brain position 

Perpendicular Plate E

inferior projection that articulates with vomer to form nasal septum

Middle Nasal Conchae E

covered with mucous during life, slow down air intake 

Ethmoidal Labyrinth E

Paranasal Sinus cavities that lighten the bone