Please enable JavaScript.
Coggle requires JavaScript to display documents.
Anatomy Week 1 Head (Cranium (8 bones (Surround & Protect the brain)…
Anatomy Week 1 Head
Cranium
8 bones (Surround & Protect the brain)
sphenoid
Butterfly Shaped
across the floor of the middle cranial fossa
majority of the base of the skull
Main Parts
Body
contains a deep depression - sella turcica
houses the hypophysis (pituitary gland)
sphenoid sinuses - air filled cavities below the sella turcica
lesser wings
greater wings
occipital
frontal
vertical (squamous) portion
forehead
contains the frontal sinuses
two elevated arches (supraciliary arches) - joined together by a smooth area called the glabella
horizontal portion
roof over each orbit = orbital plate
majority of the anterior cranial fossa
supraorbital foramen/notch
supraorbital nerve
ethmoid notch - between orbital plates
receives the cribriform plate of the ethmoid bone
temporal (2)
parietal (2)
large portion of sides of head
articulates with
superior point between the parietal bones = vertex
highest point of cranium
prominant bulge on outer surface
parietal eminence
distance between 2 eminences = width of cranium
ethmoid
smallest cranial bone
ituated in the anterior cranial fossa
cube shaped bone
4 parts
horizontal portion/cribriform plate
fits into the ethmoid notch of frontal bone
many foramina for the passage of olfactory nerve fibres
crista galli
bone projection from midline to superior, attachment for falx cerebri
anchors the brain to the anterior cranial fossa
Vertical Portion/perpendicular plate
lateral masses/labyrinth
thin walled orbital plates (lamina papyracea)
portion of the medial orbit
many ethmoid air cells (ethmoid sinuses)
largest is ethmoid bulla
projecting from the lateral masses
2 scroll shaped processes
superior nasal conchae & middle nasal conchae (turbinates)
uncinate process
infundibulum
1 more item...
Naso-orbitoethmoid union of:
ethmoid sinuses
frontal bone and sinuses
anterior cranial fossa
orbits
nasal bones
Two layers compact tissue
internal (inner) table
in between
cencellous tissue (spongy bone) called diploe
external (outer) table
base
fossa
middle
temporal lobes of cerebrum
pituitary gland
optic nerves and chiasm
cavernous sinus
trigeminal ganglion
internal carotid artery
hypothalamus
cranial nerves
trigeminal
trochlear
oculomotor
abducent
opthalmic
posterior
cerebellum
pons
medulla oblongata
mid brain
cranial nerves
vagus
glossophayngeal
vestibulocochlear
accessory
hypoglossal
facial
anterior
frontal lobes of cerebrum
olfactory bulbs