Honors Anatomy & Physiology The Axial Skeleton. Skeletal Divisions 206 separate bones + cartilages Axial Skeleton (80 bones) Skull (22 bones) + 7 associated.

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Presentation transcript:

Honors Anatomy & Physiology The Axial Skeleton

Skeletal Divisions 206 separate bones + cartilages Axial Skeleton (80 bones) Skull (22 bones) + 7 associated bones Thoracic Cage (24 ribs + sternum) Vertebral Column (26 bones) Appendicular Skeleton (126 bones) Limb bones Pectoral and pelvic girdles

The Skull

Paranasal Sinuses: Mucosal lined air cavities that lighten the skull and resonate sound, mucusal secretions are released into the nasal cavity

Anterior View

Superior View

The Skull

ID the squamous suture

ID the squamous suture *

ID the lambdoid suture

ID the lambdoid suture *

ID the mastoid process

ID the mastoid process *

ID the greater wing of sphenoid bone

ID the greater wing of sphenoid bone *

ID the external acoustic meatus

ID the external acoustic meatus * 9. 9

ID the styloid process

ID the styloid process *

Newborn Skull

Id the Vomer

Id the Vomer * 9. 9

Id the alveolar margin

Id the alveolar margin *

Id the lacrimal bone

Id the lacrimal bone *

Id the zygomatic bone

Id the zygomatic bone *

Id the mental foramen

Id the mental foramen *

Which of the following bones does NOT contain a sinus? 1. Ethmoid 2. Nasal 3. Maxillary 4. Sphenoid 5. Frontal

Which of the following bones does NOT contain a sinus? 1. Ethmoid 2. Nasal* 3. Maxillary 4. Sphenoid 5. Frontal

Which of the following is NOT a fontanel? 1. Anterior 2. Mastoid 3. Posterior 4. Temporal 5. Sphenoidal

Which of the following is NOT a fontanel? 1. Anterior 2. Mastoid 3. Posterior 4. Temporal* 5. Sphenoidal

Hyoid Bone

The Thoracic Cage

The Vertebral Column 7 Cervical vertebrae Atlas C1 (yes) No body Axis C2 (no) dens 12 Thoracic vertebrae Articulate with ribs 5 Lumbar vertebrae Largest Sacrum and coccyx fused together

Atlas and Axis

Typical Vertebrae

Sacrum and Coccyx

Classwork Write 1 paragraph explaining Compare Scoliosis, Lordosis and Kyphosis What are they How treated How compare Include URL

ID the xiphoid process

ID the xiphoid process * 9. 9

ID coastal cartilage

ID coastal cartilage *

Id false ribs

Id false ribs *

How many thoracic vertebrae?

How many thoracic vertebrae? * 6. 24

How many cervical vertebrae?

How many cervical vertebrae? *

ID type of vertebrae. 1. Cervical 2. Thoracic 3. Lumbar 4. Atlas 5. Axis 6. Sacral

ID type of vertebrae. 1. Cervical 2. Thoracic 3. Lumbar 4. Atlas 5. Axis* 6. Sacral

Id spinous process

Id spinous process *

Id transverse process

Id transverse process *

Id pedicle

Id pedicle *