func of bones - frontal, ethmoid, occipital

Frontal bone

Covers and protects anterior brain

Frontal sinus

Connects to nasal cavity and assists in keeping warm and moist air entering respiration

Ethmoid Bone

Breathing and sense of smell

Middle nasal concha

Makes air flow turbulent entering nose to help warm and moisten it against nasal walls

Perpendicular plate

Forms upper nasal septum, divides sides of nasal cavity in half

Crista Galli

Helps anchor dura matter, holding brain in place

Cribriform plate

Has holes called olfactory Fermina, bring sense of smell into brain from nasal cavity

Ethmoid sinus

Connects to nasal cavity and assists in keeping warm and moist air entering respiration

Occipital bone - Occipital condyle

Forms join with C1

Foreamen magnum

Opening connecting the brain with the spinal cord