The Skull Flashcards
what does the skull consist of
- cranium
- facial skeleton
bones that make up the cranium
- occipital
- parietal
- temporal
- frontal
- sphenoid
- ethmoid
what is the part of the occiptial bone in front of the foramen magnum called?
the basilar part or the base of the occiput
where are the occipital condyles
either side of foramen magnum
occipital condyles purpose
articulate with atlas as part of atlanto-occipital joints
squamous part of occipital location
behind foramen magnum
squamous part of temporal bone
the part on the side of the head
mastoid process location
zygomatic arch location
made of both temporal bone and zygomatic bone
external auditory meatus location
opening in the green area
styloid process location
behind external auditory meatus
stylomastoid foramen location
just behind styloid process
what structure passes through the foramen magnum
spinal cord
what structure passes through the stylomastoid foramen
- facial nerve
- stylomastoid artery
carotid canal location
in front of jugular foramen
what structures pass through carotid canal
- internal carotid artery
- internal carotid venous plexus
- sympathetic nerve plexus
julgular foramen location
in front of foramen magnum
what structures pass through the jugular foramen
- glossopharyngeal nerve
- vagus nerve
- accessory nerve
- internal jugular vein
hypoglossal canal location
right beside foramen magnum
what structure passes through the hypoglossal canal
hypoglossal nerve
what does the petrous part of the temporal bone contain
structures of the inner and middle ear
internal acoustic meatus location
what structures pass through internal acoustic foramen
- facial nerve
- vestibulocochlear nerve
what bones make up the facial skeleton
- zygomatic bones
- lacrimal bones
- nasal bones
- inferior nasal conchae
- vomer
- maxilla
- palatine bones
- mandible
- hyoid
what does the temporal fossa contain
temporalis muscle
what does the infratemporal fossa contain
pterygoid muscles and the coronoid process of the mandible
where are the pterygoid plates found
what is found between the two medial pterygoid plates
posterior nasal choanae
crista galli location
between cribriform plates
crista galli location
between cribriform plates
what structure passes through the cribriform plate
olfactory nerve
what bone makes up the middle cranial fossa
body of the sphenoid bone
main feature of the middle cranial fossa
sella turcica
what does the sella turcica contain
pitutitary fossa for pitutitary gland
optic canal location
what structure passes through the optic canal
optic nerve and opthalmic artery
superior orbital fissure location
what structures pass through the superior orbital fissure
- oculomotor nerve
- trochlear nerve
- ophthalmic branch of the trigeminal nerve
- abducens nerve
- opthalmic veins and sympathetic fibres
foramen rotundum location
what structure passes through the foramen rotundum
maxillary branch of trigeminal nerve
foramen ovale location
what structures pass through the foramen ovale
- mandibular branch of trigeminal nerve
- accessory meningeal artery
foramen spinosum location
what structures pass through the foramen spinosum
- middle meningeal artery
- middle meningeal vein
- meningeal branch of mandibular branch of trigeminal nerve
inferior orbital fissure location
what structures pass through the inferior orbital fissure
- zygomatic branch of the maxillary nerve
- the inferior ophthalmic vein
- sympathetic nerves
