skull Flashcards
3 parts of the vertebrate skull bony fish
Splanchnocranium (Visceral Cranium)
Chondracranium (Cartilage Cranium)
Neurocranium
dermatocranium (Dermal Cranium)
splanchocranium develops from
pharyngeal arches
mandibular arch has the
platoquadrate (incus) and meckels cartilage (malleus
the hyoid arch has the (3)
hypomandibular (stapes), ceratobranchial(hyoid), and basibranchial(hyoidbone)
brachial arches 3-7
pharyngobranchial, epibranchial, ceratobranchial, hypobranchial, basibranchial
Auditory ossicles
malleus, incus, stapes
Chondrocranium
paired cartilages (4)
Trabeculae, parachordals, polar cartilages, occipital cartilages
sensory capsules
nasal optic otic
what is a beauchene skull
a disarticulated exploded skull
cranial bones of the skull (6)
occipital, parietal, frontal, temporal (petrous part, internal and external acoustic meatus) sphenoid ethmoid
facial bones of the skull (8)
maxillae, palatine, nasal, inferior nasal conchae, zygomatic, lacrimal, vomer, and mandible
Bones that form the orbit (7)
Frontal, sphenoid (greater and lesser wing), zygomatic, ethmoid, lacrimal, palatine, and maxillary
Temporomandibular joint includes (4)
Temporal bone, mandibular fossa, mandible, condylar process
parts of ethmoid bone
Cribiform plate, crista galli
parts of sphenoid bone
sella turcica, hypophyseal fossa
parts of the hard palate
maxilla and palatine
lamprey skull
no jaw, splanchnocranium (supports pharyngeal slits and roof of mouth)
chondrichthyes skull
gnathostome (jawed), branchial arches, spiracle ( opening caudle to eye, reduced gill slit, present in most sharks and rays)
Bony fish
jawed, operculum bony covering protecting gills
what are paranasal sinuses
mucus and air filled cavities in skull
paranasal sinuses ______ the skull
lighten
paranasal sinuses are _______ ______ for speech
resonance chambers
What are the 4 skull bones that contain paranasal sinuses
frontal, sphenoid, ethmoid, and maxillary bones
bovine sinuses are located (5)
in the front, palatomaxillary, lacrimal, sphenoidal, conchal bones
the three bovine frontal sinus compartments are
latera rostral frontal sinus, medial rostral fontal sinus, and caudal frontal sinus
chondrichthyes have a modified ________ attachment
Amphistyly
chondrichthyes have a
enlarged hyoid arch
chondrichthyes have a absent
dermatocranium