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 *