The shape of the skull bone, that is not
attached to any other skull bones
(A)
Triangular
(B) Cup like
(C) U' shape
(D) 'F' shape
Answers
Answer:
B) cup like
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The adult human skull consists of two regions of different embryological origins: the neurocranium and the viscerocranium.
The neurocranium is a protective shell surrounding the brain and brain stem.
The viscerocranium (or facial skeleton) is formed by the bones supporting the face.
Except for the mandible, all skull bones are joined together by sutures —synarthrodial (immovable) joints.
The skull contains air-filled cavities called sinuses. Their functions are debatable, but may be related to lessening skull weight, contributing to voice resonance, and warming and moistening inspired air.
Key Terms
viscerocranium: The skeleton that supports facial structure.
sutures: A fairly rigid joint between bones of the neurocranium.
neurocranium: The protective vault surrounding the brain and brain stem.