Skull Flashcards
Cranial vault that protects brain, houses organs of hearing and balance, and is site of muscle attachment for head and neck.
Neurocranium
Domelike roof of neurocranium
Calvarium
Lateral view: Anterior bone in skull
Frontal bone
Lateral view: Posterior bone in skull
Occipital bone
Lateral view: two bones posterior to frontal
Parietal bones
Lateral view: Bones inferior to parietal
Temporal
Lateral view: Bone anterior to temporal
Sphenoid bone
Lateral view: Bone deep and inferior to frontal bone.
Ethmoid
Where is the coronal suture?
Frontal bone and parietal bones
Where is the lambdoid suture?
Parietal bones and occipital bones
Where is the sagittal suture?
Right and left parietal bones
Where is the squamous suture?
Temporal and bone and parietal bone
What are the membranous interval at the margins of cranial bones in fetal skull?
Fontanelles
What is the large membranous interval on top of fetal skull?
Anterior fontanelle
What is the membranous interval on back of fetal skull?
Posterior fontanelle
What is the membranous interval on side of fetal skull anterior to temporal skull?
Sphenoid fontanelle
Anterior view: what is the bone inferior to frontal bone and anterior to nasal septum?
Nasal bone
Anterior view: what is the cheekbone called?
Zygomatic bone
Anterior view: what is the large bone surrounding nasal and holding teeth?
Maxilla bone
Anterior view: what is the bone inferior to maxilla bone?
Mandible
Anterior view: bone lateral to nasal and maxillary bone. (Hint: canal for tear ducts)
Lacrimal bone
Anterior view: area that houses teeth from maxilla bone
Alveolar area
Anterior view: top half of nasal septum
Perpendicular plate (of ethmoid)
Anterior view: bottom half of nasal septum
Vomer
Perpendicular plate of ethmoid and vomer make up the _____ _____.
Nasal septum
Bone at the most medial of the orbital opening. (Revise)
Nasolacrimal canal
Hole under eyes on maxilla bone.
Infraorbital foramen
Indent at precipice of superior orbital area (revise)
Supraorbital notch/foramen
Top half of the boomerang-like hole thru eye socket.
Superior orbital fissure
Bottom half of the boomerang-like hole thru eye socket.
Inferior orbital fissure
Supraorbital notch/foramen is branch of…
Cranial nerve V1 (supraorbital nerve)
Infraorbital foramen is a pathway for the branch of…
Cranial nerve V2 (infraorbital nerve)
Inferior orbital fissure is a pathway for the branch of…
Cranial nerve V2 (infraorbital nerve)
Nasolacrimal canal is a passage for…
Nasolacrimal duct
Superior orbital fissure is a pathway for the branch of…
Cranial nerves III, IV, VI, and V¹
Lateral view: What is the top half of sphenoid bone called?
Greater Wing (of sphenoid)
Lateral view: what is the thinner, top part of the temporal bone called?
Squamous portion (of temporal)