Basic Components of the Head
What is part of the axial endoskeleton that encases and protects brain and most sense organ?
Skull
Name the four basic components of neurocranium of bony fish?
- ethmoid (anterior)
- orbital (eye)
- otic (ear)
- basicranial (posterior)
What is the mandibular arch?
dermal bone that make up the upper and lower jaw
What makes up the girdle that connects to back of skull
pectoral girdle
What are the two main components of a fish skull
neurocranium and branchiocranium
What is the brain case called?
Neurocranium
All bones of ethmoid neurocranium
laterial ethmoids
ethmoids
vomer
nassals
What are the three bones of upper jaw?
premaxillae
maxillae
supermaxilla
What parts make up the pectoral girdle
supratemporal
cleithrum
coracoid
scapula
posttemporal
supracleithium
basiptarygium
What bone support/protects eye?
scierotic bone
Branchiocranium
All bones of orbital nuerocranium
pterosphenoid
basisphenoid
scierotic
frontal bones
What are the two bones of the lower jaw?
dentary
angular
What makes up the vertebral column in fish?
precardal
caudal
epinural
epipleural
What bone has horizontal semicircular canals of the otic group
Pterotics
What is the original cartilagous brain case that ossifys during ontogeny of neurocranium?
Chondocranium
all bones of otic neurocranium
sphenotic
pterotic
prootic
epiotic
intercalar
parietal
What does the opercule bone, suboparcle bone, preopercle bone, and interopercle bone make up?
Opercular apparatus
What is it called when each spine associates with perygiophores bones that add support to fin rays?
lepidotricha
What bone has vertical semicircular canals?
Epiotic bone
What consists of dermal bones and thought to be derived from scales that attached to chondrostia of neurocranium?
Dermatocranium
All bones of basicranial region neurocranium
exoccipital
basiocciptal
supraoccipital
parasphenoid
What does the palatine arch, suspensorium, and cerato branchiai/hyoid complex make up?
Hyoid and palatine region
neural spines
caudal peduncle bones
hypural bone/complex
What is the most ventral bone of the neurocranium in the group basicranial region?
basioccipital