1. The Skeletal System

2. Divisions Of The Skeletal System
Axial Skeleton – 80 bones
Skull (22 )
Face = 14
Cranium = 8
Hyoid (1)
Auditory Ossicles (6)
Vertebral Column (26)
Thorax (25)
Sternum = 1
Ribs = 24

3. Divisions Of The Skeletal System
Appendicular Skeleton (126 Bones)
Pectoral Girdle (4)
Clavicle & Scapula
Upper Limbs (60)
Arm Bones & Hand Bones
Pelvic Girdle (2)
Hip Bones
Lower Limbs (60)
Leg Bones & Foot Bones

4. Types Of Bones Long Bones Short Bones
Humerus, Ulna, Radius, Femur, Tibia, Fibula
Short Bones
Carpals & Tarsal

5. Types Of Bones Flat Bones Irregular Bones Cranial, Sternum, Ribs
Vertebrae, Some Facial Bones

6. Types Of Bones Sesamoid Bones Sutural Bones Knee Caps
Small bones located within joints called sutures between cranial bones
Vary from person to person

7. Bone Surface Markings

8. Depressions And Openings
Fissure
Narrow slit between adjacent parts of bones through which vessels and nerves pass
Foramen
Opening through which blood vessels, nerves, or ligaments pass.
Fossa
Shallow depression

9. Depressions And Openings
Sulcus
Furrow or groove along a bone surface that accomodates a blood vessel, nerve, or tendon.
Meatus
Tubelike opening or passageway

10. Bone Processes Condyle Facet
Large, round protuberance at the end of a bone
Facet
Smooth, flat articular surface

11. Bone Processes
Head
Rounded articular projection supported on the neck of a bone

12. Bone Processes Crest Epicondyle Line
Prominent ridge or elongated projection
Epicondyle
Projection above a condyle
Line
Long, narrow ridge or border

13. Bone Processes Spinous Process Trochanter Sharp, slender projection
Very large projection

14. Bone Processes Tubercle Tuberosity Small, rounded projection
Large, round, and rough projection