 Provide
shape and support
 Protection
 Storing
of internal organs
minerals and fat
 Producing
 Assisting
blood cells and platelets
with movement
 Composed
of: inorganic salts (calcium), bone
cells, blood vessels, nerves, collagen
 Needs
food and oxygen
 Continue
to grow throughout life, replacing
damaged bone
 Osteoblasts
(build up bone)
 Osteoclasts (clean up bone and debris)
 Cartilage
 Aponeurosis
 Dense (compact bone)
 Spongy (cancellous bone)
1.
Axial = 80 bones
= 126 bones

Long: femur, humerus, tibia, fibula, fingers & toes?

Short: small cubed-shaped: carpals, tarsals,

Flat: usually cover organs: scapula, pelvis, skull,ribs

Irregular: bones of ear, vertebrae, bones of face

Sesamoid: patella (knee cap), bottom of foot, and
hand.
 Cranium
 Face
= 8 bones
= 14 bones
 Ears
 Mandible
skull
is the only movable part of the
 Crown
 Root
 Enamel
 Cementum
 Dentin
 Pulp
 32
teeth in an adult
 Ribs



True ribs: first 7
False ribs: lower 5 ( last 2 are called floating ribs)
Intercostal space: contains muscles, blood vessels,
nerves
 Sternum
 Vertebral
bones = 26 bones
true
false
 Joints
are named by the bones they join

Synarthrosis (immovable): cranial bones

Amphiarthrosis (slightly movable): ribs connected to
sternum

Diarthrosis (freely movable, synovial)

Synovial joints contain a bursa: fluid filled sac
1.
Ball and socket: shoulder, hip
2.
Hinge: elbow, knee
3.
Gliding: in between the carpal bones and ankle
4.
Pivot: Radius on ulna
5.
Saddle: Thumb (thumb touching finger tips)
6.
Gomphosis: (teeth)