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Skull Lecture Dodson
Terms in this set (28)
What are the seven systems of the body that are represented in the head?
What is the lip curling response called?
What is the reproductive organ located in the head called?
what is the significance of the nasopalatine duct?
it the duct where the phermones are absorbed during the flehmen response
What does the degree of inflation of the tympanic bulla say about the animal?
significant inflation = good hearing
no inflation = bad hearing
What attaches to the mastoid process of the skull?
hyoid bone and mastoid muscles
What muscles attach to the paracondylar process?
What is the cavity that is bounded ventrally by the hard palate, laterally by the maxilla and palatine bones, and dorsally by the nasal and incisive bone?
What is the nasal septum made out of?
cartilage and mucosa
What bone is supporting the olfactory epithelium of the nasal cavity therefore supporting the sense of smell?
What bone does the dorsal concha protrude from?
What bone does the ventral concha protrude from?
What is the function of the concha?
increase surface area to warm and moisten air
what meatus gives a direct passage to the nasopharynx?
what is the space that is bounded ventrally by the soft palate, dorsally by the choana, and caudally by the palatopharyngeal arch?
What is the space that is bounded by the hard palate dorsally, the tongue ventrally?
What is the space that is bounded by the palatoglossal arch dorsally and the palatopharyngeal arch caudall?
what is the huge difference between the oral cavity and the oral pharynx?
oral cavity - voluntary
oropharynx - autonomic (involuntary)
What are the air filled spaces lined with mucosa that are communicating with the nasal cavity called?
What is significant about the function of the sinuses in the bull?
it provides a space to protect the brain case from trauma ( bulls use their heads for defense)
What are the endochondral bones of the braincase?
basioccipital, basisphenoid, presphenoid, ethmoid
What is the joint in between two endochondral bones called?
What are jaws derived from?
What is the bone that supported shark jaws called?
How many bones do mammals have in their jaw?
1 - dentary bone
Articular and quadrate bones of the jaw became what in mammals?
What species did mammal develop their jaws from?
What is the new jaw joint from mammals after evolving from reptiles?
temporodentary joint and 3 auditory ossicles
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