W2: Osteology Flashcards
What structures form the neurocranium and explain which structures are paired/single
- Ethmoid- single
- Frontal- single
- Occipital- single
- Parietal- pair
- Temporal- pair
- Sphenoid- single
What structures form the viscerocranium and explain which which structures are paired/single
- Nasal bone- paired
- Maxilla- paired
- Mandible- single
- Vomer- single
- Inferior nasal concha- paired
- Lacrimal- paired
How many irregular bones does our skull consist of?
22
Which bone of our skull is considered a regular bone?
Ossicles
What bones form the calvaria?
Frontal
Parietal
Occipital
Temporal
Sphenoid
What suture forms the junction between the parietal and sphenoid bone
Sphenoparietal suture
What structures form the pterion
Coronal suture
Sphenofrontal suture
Sphenoparietal suture
Squamous suture sphenosquamous suture
What structures form the zygomatic arch
Zygomatic process of temporal bone
Temporal process of zygomatic bone
What sutures form the Bregma junction
Coronal and sagital
What structures form the aterion junction
Squamous suture
Occipitomastoid suture
Lambdoid suture
What muscles attach(originate) at the superior nuchal line?
Trapezius
Occipitalis
What artery does the middle meningael artery branch from, what nerve does it pass through and what foramen does it travel through
- Maxillary branch of the external common carotid artery
- Auriculotemporal nerve of V3
- Foramen spinosum
What structures travel through the optic canal?
Optic nerve and ophthalmic artery
What structures pass through the superior orbital fissure?
CN 3
CN 4
CN 6
V1
Superior ophthalmic vein
What structures pass through the foramen rotundum?
V2
What structures travel through the foramen ovale
- V3
- Occasionally lesser petrosal nerve
-accessory meningeal artery
What structures travel through the foramen spinosum?
V2 meningeal nerve
V3 middle meningeal nerve
Middle meningeal artery
What structures travel through the sphenoid emissary foramen
Emissary veins
What structures exit through the foramen lacerum
NONE
But- structures that pass mid way through are internal carotid artery greater and deep petrsoal
What structures travel through the internal acoustic meatus
CN 7
CN 8
LABYRINTHINE ARTERY
What structures travel through the mastoid foramen
Emissary veins
Sometimes the occipital artery
What structures travel through the carotid canal
Internal common carotid and nerve plexus
What structures pass within the jugular foramen
CN 9
CN 10
CN 11
Sigmoid sinus
Inferior petrosal sinus
Posterior meningeal artery
What structures travel through the condylar canal
Emissary veins and meningeal artery of ascending pharyngeal artery
What structures travel through the external acoustic meatus
AIR
What structures travel through the hypoglossal canal
CN 12
What structures travel through the foramen magnum
Meninges
Medulla oblongata
CN 11
Vertebral artery
Meningeal branches of vertebral artery
What structure splits the middle and posterior cranial fossa
Tentorium cerebelli