Lecture 20: Skull and Cranial Nerves Flashcards
3 attachment sites for chewing and neck muscles + articulation with vertebral column
temporal fossa
temporal line
sagittal crest
temporal fossa contains (1)
temporalis muscle and fascia
what is the bump on the back of the head
external occipital protuberance
external occipital protuberance is site of attachment for what ligament
supraspinatus
frontal/parietal vs occipital number in neurocranium
2 frontal
2 parietal
1 occipital
which 3 bones form the base of the neurocranium
presphneoid
basisphenoid
pterygoid
basisphenoid looks like what animal
butterfly
3 cranial fossae
rostral
middle
caudal
4 bones that form hard palate
premaxilla
maxilla
palatine
upper portion of dental battery
nasal conchae: definition, location
thin, scroll like bones that are covered with respiratory and nasal epithelia
within nasal choane/apertures
6 bones that form rostrum (part of cranium containing teeth, palate and nasal cavity)
premaxilla
maxilla
palatine
nasal
lacrimal
portions of frontals and zygomatics
zygomatic arch is formed by (2)
temporal process of zygomatic bone + zygomatic process of temporal bone
origin of masseter muscle
zygomatic arch
which ligament forms lateral portion of orbit
postorbital
5 bones that form viscerocranium
zygomatic
lacrimal
frontal
maxilla
palatine
viscerocranium definition
bony orbit that support eye and associated structures
where does mandible articulate with temporal
temperomandibular joint
cranial nerve that exits from telencephalon
olfactory/CNI
cranial nerve that exits from diencephalon
optic/CN II
2 cranial nerve that exits from mesencephalon
oculomotor/CN III
trochlear/CN IV
cranial nerve that exits from metencephalon
trigeminal/CN V
7 cranial nerves that exit from myelencephalon
CN VI/XII
3 components of CN I/olfactory
olfactory filaments
olfactory bulb
olfactory tract
fila olfactoria
olfactory cells
3 components of CN II/optic
optic nerve
optic chiasm
optic tract
does V3/mandibular of trigeminal provide taste to tongue
no, just pain/touch
3 exits for trigeminal nerve from skull
orbital fissure - V1
maxillary foramen - V2
round foramen - V2
oval foramen - V3
which cranial nerve provides motor innervation to muscles of facial expression
CN VII/facial
innervation to tongue: cranial nerves and their functions
taste to anterior 2/3 = CN VII (FACIAL)
taste to posterior 1/3 = CN IX (glossopharyngeal)
general sensory to posterior 1/3 = CN IX
general sensory to posterior 2/3 = V3 of CN IV (trigeminal)
motor = CN XII/hypoglossal
hard palate separates what 2 cavities
oral
nasal
