SKULL Flashcards
what is periosteum?
connective tissue covering bones of skull
attached firmly at sutures
what is connective tissue covering orbital bones
periorbita
what is a suture?
immovable junction between 2 bones
what is a foramen
opening to a canal, carrying blood vessels and/or nerves through the bone
what is a fissure
space between the edges of two bones
what is a canal
smooth channel running through a bone carrying blood vessels and/or nerves
What is a fossa
a Smooth depression in the surface of a bone or house structure
what is a sinus
a hollow cavity within the bone
Frontal bone
forms forehead and orbit roof. strong and lightweight.
sinuses make the bone light weight
Sphenoid bone
has greater and lesser wing
- superior orbital fissure operates the two wings
what is the optic canal
carries optic nerve and ophthalmic artery
what does Maxillary bones contain
contains info orbital canal and foramen
What is a maxillary sinus
large cavity that lies above teeth and below orbital floor, transmits nerves and blood vessels to and from teeth and upper jaw
Lacrimal bones
Forms the lacrimal fossa, houses lacrimal sac
Palentine bones
L shaped, forms part of the orbital floor and roof of the mouth
