Outline - 1, BIO 2310, Axial Skeleton

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VI. AXIAL SKELETON [80]

A. Sutures

1. Coronal

2. Sagittal

3. Lambdoidal

4. Squamosal

B. Fontanels

C. Cranial bones [8]

1. Frontal

Supraorbital foramen

2. Parietal

3. Temporal

External auditory (=acoustic) meatus

Zygomatic process

Mastoid process

Mandibular fossa

4. Occipital

Foramen magnum

Occipital condyles

5. Sphenoid

Superior orbital fissure

Sella turcica

6. Ethmoid

Crista galli

Cribriform plate

Olfactory foramina

Superior & medial (middle) nasal conchae

Perpendicular plate

• Sinus

D. Facial bones [14]

1. Mandible

Mandibular condyle

Coronoid process

Alveoli = alveolar margins

2. Maxilla

Alveoli

Palatine process

3. Palatine

4. Zygomatic

5. Lacrimal

Lacrimal fossa/sulcus

6. Nasal

7. Vomer

8. Inferior nasal conchae

E. Hyoid

F. Vertebrae

1. Body

2. Vertebral arch (pedicles and laminae)

3. Vertebral foramen

4. Transverse process

5. Spinous process

6. Articular processes = Facets

7. Intervertebral foramina

8. Intervertebral disc

9. Cervical vertebrae - 7

Atlas

Axis

Odontoid process = Dens

10. Thoracic vertebrae - 12

11. Lumbar vertebrae - 5

12. Sacral vertebrae - 5 fused = sacrum

13. Coccygeal vertebrae - 3-5 fused = coccyx

G. Sternum

1. Manubrium

Jugular notch

2. Body

3. Xiphoid process

H. Ribs {true-7, false-5, floating-2}

1. Head

2. Tubercle

3. Costal cartilage