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Anatomy Chapter 5 Quiz 3

Terms in this set (42)

axial skeleton
what is the longitudinal axis?
skull
vertebral column
thoracic cage
three parts of the axial skeleton
cranial
facial bones
two parts of the skull
sutures
bones are joined by?
the mandible
the only part of the skull that is attached by a freely movable joint
forehead
bony projections under eyebrows
superior part of the eye's orbit
the frontal bone includes?
parietal temporal bones
composes the cranium
parietal bone
paired, forms superior and later walls of the cranium
sagittal suture
where parietal and temporal bones meet
coronal suture
where the parietal and temporal bones meet the frontal bone
temporal bone
inferior to the parietal bones and joins them at the squamous suture
external acoustic meatus
Canal and eardrum
styloid process
sharp needle-like projection that attaches at the point of the neck, inferior to external acoustic meatus
zygomatic process
full of air cavities, rough projection posterior and inferior to external acoustic meatus
jugular foramen
junction of occipital and temporal bones and allows passage of the jugular vein
internal acoustic meatus
transmits cranial nerves VII and VIII
carotid canal
internal carotid runs through here
lambdoid suture
joins the parietal bones anteriorly
foramen magnum
surrounds lower brain and allows spinal cord to connect with the brain
occipital condyles
rests of the first vertebrae and is lateral to the external acoustic meatus
sphenoid bone
butterfly-shaped, spans the with of the skull and forms part of the floor of the cranial cavity
sella turcica
enclosure for the pituitary gland
foramen ovale
allows fibers of cranial nerve to pass to chewing muscles
optic canal
optic nerve pass to the eye
superior orbital fissure
where cranial nerves 3, 4, and 6 controlling eye movements pass and houses the sphenoid sinuses
ethmoid bone
irregular shaped and lies anteriorly to the sphenoid bone
cribriform
small holes on side of crista galli and allows smells to reach the brain
superior and middle nasal conchae
increases the turbulence of air flowing through nasal passages and forms the lateral walls of the nasal cavity
14
how many bones compose the face?
12
how many of the facial bones are paired
mandibles and vomer
what are the two unpaired facial bones?
maxillae
forms upper jaw
aveolar process
upper teeth
palatine processes
form the anterior part of the hard palate of the mouth
palatine bones
form posterior part of hard palate
cleft palate
failure of palatine process to fuse medially
zygomatic bones
cheek bones and is grooved for the passage of tears
lacrimal bones
fingernail-sized bones
nasal bones
forms the bridge of the nose
vomer bone
forms bony nasal septum and is in the medium line of the nasal cavity
inferior nasal conchae
thin, curved bones projecting medially from the nasal cavity
mandible
lower jaw
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