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Jaw: Quiz


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Question 1: In most ________, the jaws are bony or cartilaginous and oppose vertically, comprising an upper jaw and a lower jaw.

Question 2: A common disorder of this joint is ________ which can cause pain and loss of mobility.
Temporomandibular joint disorderGingivitisActinic cheilitisPeriodontitis

Question 3: The jaws were used in the buccal pump (observable in modern fish and ________) that pumps water across the gills of fish or air into the lungs in the case of amphibians.

Question 4: The vertebrate jaw probably originally evolved in the Silurian period and appeared in the Placoderm fish which further diversified in the ________.
Geologic time scaleCarboniferousLate Devonian extinctionDevonian

Question 5: In ________, the jaws are chitinous and oppose laterally, and may consist of mandibles or chelicerae.

Question 6: As a result, mammals show little or no cranial kinesis, and the mandible is attached to the temporal bone by the ________.
Head and neck anatomySphenomandibular ligamentTemporomandibular jointStylomandibular ligament

Question 7: The jaw in ________ is substantially simplified compare to fish.

Question 8: The jaws of ________ exhibit varying degrees of mobility between jaw bones.

Question 9: Each unit of the jaw holds a single, perpetually-growing ________ composed of crystalline calcium carbonate.
FasciaHead and neck anatomyTooth (human)Tooth development

Question 10: The ________ shows the greatest degree of cranial kinesis, in order to allow the snake to swallow large prey items.
ElapidaeSkeletonSnake skeletonColubrid

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