W4 anatomy of human skull Flashcards
what’s the role of the neurocranium
protect the brain
what is the splanchnocranium
framework of the face and cavities for sense organs
what 2 parts make up the cranium
neurocranium splanchocranium
how many cranial bones are there
8
how many and where are the parietal bones
2 and on the left and right side of skull
where is the frontal bone found
anterior part of skull
where is the occipital bone found
posterior part of skull
how many facial bones are there
11
where do cranial nerves pass through
foramina of skull
what are the 4 pneumatic bones in the skull
maxillary
frontal
sphenoid
ethmoid
what are the 4 paranasal sinuses
frontal
sphenoid
ethmoid
maxillary
what is the role of fontanelle
allow growth and flexibility of skull
which parts of the skull are in the anterior cranial fossa
frontal
sphenoid
ethmoid
which parts of the skull are in the middle cranial fossa
sphenoid
parietal
temporal
which parts of the skull are in the posterior cranial fossa
sphenoid
parietal
temporal
occipital
where does olfactory nerve (1) run through
olfactory bulb to cribriform plate to nasal cavity
where does optic nerve (2) run through
transverses optic canal to orbital
which nerves pass through superior orbital fissure
- oculomotor
- trochlear
- abducens
- ophthalmic branch of trigeminal nerve
what does the trigeminal nerve split branch into
ophthalmic
maxillary
mandibular
where does the maxillary branch of trigeminal nerve leave through
foramen rotundum
where do facial (7) and vestibulocochlear (8) nerve enter
internal acoustic meatus
where does facial nerve leave from
stylomastoid foramen
which nerves leave through jugular foramen
Glossopharyngeal (IX) Vagus (X)
spinal accessory nerves (XI)
where does hypoglossal nerve leave from
hypoglossal canal
which foramen does the spinal cord pass through
foramen magnum
what is the role of the sphenoid bone
formation of the base and sides of the skull
what is the orbits of the skull
holes where the eye sockets are
which bone is the optic canal found in
sphenoid bone
where are the temporal bones of the skull
sides of the skull at the base
what is the mandible bone in the skull
jawbone
what are the 7 bones that make up the orbit bone
frontal
zygomatic
maxilla
lacrimal
palatine
ethmoid
sphenoid
where are the maxilla and palatine bones found
roof of the mouth
what are the 4 human teeths
incisors
molars
pre-molars
canines
what are the 6 parts of the the tooth
crown
root
enamel
dentin
pulp
cementum
what is the role of enamel on a tooth
protect teeth from bacteria
what is the role of dentin on a tooth
protect teeth from heat and cold
how many teeth do human adults have
32
how many incisors are there
8
how many canines are there
4
how many premolars are there
8
how many molars are there
12
which 2 cranial bones are teeth embedded to
maxillary and mandibular
what are deciduous teeth
baby teeth
which bones join at the pterion
frontal
perietal
sphenoid
temporal
where do subdural haematoma occur
accumulation of blood in the space between dura and arachnoid meninges
where do epidural haematoma occur
accumulation of blood between surface of skull and endosteal layer of dura
where does SAH occur
between the subarachnoid space
