Axial Skeleton: The Skull

Vocabulary flashcards detailing the bones, sutures, and landmarks of the skull from the axial skeleton lecture notes.

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Frontal Bone: Forms the forehead and superior portion of the bony orbit.

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Parietal Bones: Paired bones forming the roof and sides of the cranium.

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Temporal Bones: Form the lower sides of the skull and house structures of the ear.

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Occipital Bone: Forms the posterior aspect and base of the skull.

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Sphenoid Bone: Butterfly-shaped bone contributing to the cranial base and floor.

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Ethmoid Bone: Contributes to the cranial floor, medial orbit, and nasal septum.

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Zygomatic Bones: Paired cheekbones that articulate with the frontal, sphenoid, temporal, and maxilla.

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Lacrimal Bones: Smallest facial bones; form part of the medial wall of the orbit.

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Nasal Bones: Paired slender bones forming the bridge of the nose.

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Inferior Nasal Conchae: Paired bones in the nasal cavity that increase surface area for inspired air.

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Palatine Bones: Rear oral cavity bones forming the posterior hard palate.

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Maxilla: Comprises the upper jaw and anterior hard palate.

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Vomer: Forms the posterior aspect of the nasal septum.

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Mandible: The lower jaw bone; the only mobile bone of the skull.

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Coronal Suture: Fuses the frontal bone with the two parietal bones.

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Sagittal Suture: Fuses the two parietal bones to each other.

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Lambdoid Suture: Fuses the occipital bone to the two parietal bones.

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Pterion: An H-shaped junction (temporal, parietal, frontal, sphenoid) that overlies the middle meningeal artery.

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Fontanelles: Membranous gaps in neonates, specifically the frontal fontanelle and occipital fontanelle, allowing for cranial growth.