Hyoid bone AXIAL Sternum SKELETON Clavicle Scapula Ribs Hyoid bone Vertebra Sternum Innominates Vertebra Clavicle Sacrum Innominates Scapula coccyx Sacrum Ribs Coccyx

Flat Bones -- sternum, ribs Protection Irregular Bones -- vertebra, innominate, Muscle Anchor sacrum, coccyx, Flexibility clavicle, scapula, hyoid

Hyoid Bone

Greater wings Lesser wings

Hyoid Bone • Anchor for pterygoid muscles • Necessary for speech • Found for Neandertals

1 Sternum

Manubrium Clavicular notch Body Costal notchs Xyphoid Process sternum • Anchor for muscles • Protection for heart

clavicle

Sternal End Scapular End Costoclavicular ligament attachment Conoid Tubercle

Acromion Coronoid Spine scapula scapula • Protection for lungs Blade • Anchor for numerous Glenoid arm and back muscles Notch

2 Vertebra RIBS

Head Neck False Ribs Angle Facet

• Protection for spinal cord • Anchor for numerous muscles Floating Ribs

Vertebra Vertebra Intervertebral disks

Cervical Vertebra

Cervical Vertebra Transverse foramen

3 Atlas Axis

Dens apistrophe Superior articular facets Superior articular facets Vertebral foramen Transverse foramen Transverse foramen Body Transverse process Spinous process Vertebral foramen Inferior articular facets Inferior articular facets Transverse process Spinous process

Thoracic Vertebra Body Superior articular facet Vertebral foramen Transverse foramen Transverse process Spinous process

Rib Facets C3 - C7

Lumbar Vertebra

Thoracic Vertebra

4 L5

L1

lumbar

Orientation of the Ala bones of the Thorax Promotory

Vertebra Articular Surface sacrum

Ribs Sternum

sacrum

coccyx

5 innominates

innominates

Acetabulum

6