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31 Cards in this Set

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  • Back
trabeculae
anterior region of the cartilage formed by the notochord formed by condensation of the head mesoderm
amphistylic
jaw suspension to braincase via 2 major attachments: hyomandibular and palatoquadrate
synapsid
in mammals only one opening in braincase
polar cartilages
btw. parachordals
metautostylic
amphibians, reptiles, and birds- jaws attached to the braincase directly through the quadrate
kinetic skull
articulation btw. upper jaw and braincase
serial theory
1st 2 branchial arches evolved into jaws
osteon
unit of organic salts arranged in a regular and highly ordered unit: it is a concentric ring of bone cells around the central canal through which blood, lymphatic vessels and nerves travel
zygapophysis
intertwined apophyses
intervertebral disc
called cartilage if not with notochord.
nucleus pulposus
part of the intervertebral disc: gel like core that acts as padding
intercentrum and pleurocentrum serve to...
anchor and support arches
occipital arch
formed by occipitals going around notochord
aspondyly
centra absent
mono/di spondyly
1/2 centrum
dermatocranium
dermal bone: 3rd part of cranial phylogeny- OUTER CASTING OF SKULL
chondocranium
underlies and support brain: endochondral bone, cartilage, or both: embryonic structure serving as scaffolding from developing brain and support for sensory capsules
snakes lizards birds- 2 openings
diapsid: what animals
aspidospondyl
separated centrum
holospondyl
fused centrum
lepospondyl
pierced by notochord like in camel
malleus
articular
incus
quadrate
stapes/columella
hyomandibular
meta/meso/pro kinesis
back/eye hole/front of orbital
mandibular
coronoid
angular
surangular
articular
prearticular
mandibular symphisis
dentary
palatal
pterygoid
ectopterygoid
parasphenoid
vomer
palatine
vault
parietal
postparietal
temporal series
squamosal
quadratojugal
intertemporal
supratemporal
tabular
splanchnocranium arises from
neural crest cells
occipital cartilages
behind parachordals