BIOL 1410 Lecture Notes - Inferior Nasal Concha, Occipital Condyle, Lumbar Vertebrae

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Know if bones are paired: skull. Axial (80 bones: frontal/forehead, 2 parietal, 2 temporal, sphenoid, ethmoid: forms superior and middle nasal conchae, occipital. Facial: 14 bones: 2 nasal, 2 maxillae, 2 zygomatic, 2 lacrimal, 2 palatine (and 2 maxillae form hard palate, 2 inferior nasal conchae, vomer, mandible/jaw bone, auditory ossicles: middle ear. Hyoid bone: no articulations/joints, attaches muscles of tongue and neck for swallowing, vertebral column: 26 vertebrae. C1 = atlas (no body, no spinous process, articulates with occipital condyle of skull for nodding) C2= axis (dens=odontoid process, pivot joint which atlas swivels, shaking no) All articulate with ribs via costal facets. Sacrum: 5 fused vertebrae, articulates with ilium (appendicular skeleton, 5th lumbar vertebra. Cervical + lumbar concave (into the u) posteriorly. Parts: manubrium (superior), body (middle), xiphoid process (inferior) Ribs: 12 pairs articulate posteriorly with t1-t12. 5 pairs: false ribs attach indirectly to sternum via costal cartilage (8-10) floating (11,12) embedded.

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