Podcast
Questions and Answers
Which bones form the neurocranium?
Which bones form the neurocranium?
Which bone is the only truly motile joint found in the skull?
Which bone is the only truly motile joint found in the skull?
What are fontanelles?
What are fontanelles?
Study Notes
Anatomy of the Skull
- The skull supports the face and protects the brain.
- The adult human skull is composed of 22 bones divided into two parts: neurocranium and viscerocranium.
- The neurocranium forms the cranial cavity that surrounds and protects the brain.
- The neurocranium is formed from 8 bones: frontal, sphenoid, ethmoid, occipital, 2 temporal, and 2 parietal bones.
- The viscerocranium forms the anterior and lower regions of the skull and includes the mandible.
- The facial skeleton consists of 14 bones: 2 nasal, 2 lacrimal, 2 palatine, 2 inferior nasal concha, 2 zygomatic, 2 maxilla, 1 mandible, and 1 vomer.
- The mandible is the only truly motile joint found in the skull.
- The skull also contains sinuses, which are air-filled cavities that contribute to lessening the weight of the skull.
- The sinuses contribute to resonance of the voice and assist in the warming and moistening of air inhaled via the nose.
- The bones of the skull, with the exception of the mandible, are joined together by synarthrodial (immovable) joints called sutures.
- The sutures are important for the development of the skull and allow for some growth during childhood.
- The fontanelles are soft spots on a baby's skull where the sutures have not yet fused together.
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Description
Test your knowledge of the skull anatomy with this informative quiz! Learn about the composition of the neurocranium and viscerocranium, the facial skeleton, sinuses, and joints that make up the skull. Impress your friends with your understanding of fontanelles and the motile joint of the mandible. Use keywords such as neurocranium, viscerocranium, facial skeleton, sinuses, sutures, fontanelles, and mandible to ace the quiz!