axial skeleton Flashcards
bones of axial skeleton
skull, auditory aussicles, hyoid, vertebral column, thoracic cage
functions of axial skeleton
protects brain, spinal cord and vital organs in thorax
skull total amount of bones
22
8 cranial
14 facial
cranial bones
- parietal (2)
2 . temporal (2) - frontal
- occipital
- ethmoid
6.sephnoid
facial bones
- vomer
- mandible
- Maxialla (2)
- zygomatics (2)
- palentines (2)
- lacriminals (2)
- nasals (2)
- inferior nasal conchae
sutures
immovable joints that connect cranial bones
coronal
frontal and parietal
sagital
two paritals
squamous
temporal and parietal
lamboid
occiput and parietal
ligament nuchae
helps keeps head errect
nuchal lines
neck muscle attachment point on occipital bone
external occpital protuberance
site of attachement for ligament nuchae
7 bones of the orbit
sphenoid
palentine
zygomatic
frontal
ethmoid
lacrimal
maxilla
nasalacromal canal
connects orbits to nasal cavity–tears from eyes to nose
optic foramen
where optic nerve runs to back of brain in sphenoid
nasal septum comprised of
posterior–Vomer, perpendicular plate of ethmoid bone
anterior–hyaline cartilage
lateral–nasal conchae
nasal conchae
increase surface area in nose
facilitate moistening and removal of particles
ethmoid bone nasal conchae
middle and superior
parasinuses function
decrease weight of head
resonating chamber for voice
crista galli
prominent ridge in anterior fossa
point of attachment for dura matter (meneges)
in ethmoid bone
sella turcica
part of sphenoid bone that houses pituitary gland
foramen magnum
opening where spinal cord enters in occiput
carotid canals
internal carotid arteries,temporal
jugular foramen
jugular vein carrying blood away; temporal
