Skeletal System Axial Skeleton Anatomy
Anterior view of skull
The skull 8 cranial bones: occipital, parietal, frontal, temporal, sphenoid, ethmoid 14 facial bones
Lateral view of skull
Sphenoid bone: keystone bone because it touches all other cranial bones Sella turcica – holds the pituitary gland Ethomoid Cristal galli and cribriform plates hold the olfactory bulb (nerves)
Superior View of Skull after transverse cut.
Medial view of skull
Inferior view of skull
Figure 6.12c Sinuses: Special openings that lighten the skull, warm and moisten air
Hyoid bone – only bone that doesn’t articulate with another bone Anchors the tongue.
7 12 5
Hyoid and Cervical vertebra
Bone Markings of Vertebra
Atlas and Axis (C1 and C2)
Thoracic and Lumbar vertebra
Sacrum and Coccyx – fused vertebra
Ribs (12 pair) True (7) connect directly to sternum via coastal cartilage False (3) connect indirectly Floating (2) don’t connect