The Skeleton• The skeleton is formed of bones

+ Ligaments + Tendons + Joints

of the body .

• The skeleton is formed mainly of bones .

The Skeleton

• Axial Appendicular

• Skeleton Skeleton• = = • -Skull Limbs• -Vertebrae &• -Thoracic cage Girdles• -Hyoid bone

The Skull• The skull is formed of 22 bones.

• The mandible is the most mobile one of the skull bones.

• The other bones articulate together by fibrous joints .

The Thoracic cage

• The thoracic cage includes the ribs & sternum .

• There are 12 pairs of ribs .

• The sternum is formed of 3 parts .

The Sternum

• The sternum is formed of :

• 1- Manubrium sternai

• 2- Body of the sternum

• 3- Xiphoid process

The Vertebrae( vertebral Column )

• The Cervical vertebrae are 7

• The Thoracic vertebrae are 12

• The lumbar are vertebrae 5

• The Sacrum are vertebrae 5

• The coccyx is rudimental

The Vertebra• The vertebra is formed of :• -Body = Centrum• - 2 Pedicles• - 2 Laminae• - 2 Transverse processes• -Spine• The vertebral canal = spinal canal

The Shoulder Girdle

• The pectoral ( shoulder ) girdle connects

the upper limb with the axial skeleton.

• The shoulder girdle includes the clavicle

& the scapula .

Bones of the upper limb

• The hummers = bone of the arm• The radius = the lateral bone of forearm• The ulna = the medial bone of forearm

• The Carpals = 8 bones ( bones of the wrist )

.The hand

HUMERUS

The Pelvic Girdle

• The pelvic girdle is formed of 2 hip bones

+ Sacrum.

The 2 hip bones are connected together anteriorly by the symphysis pubis which is a cartilaginous joint .

Bones of the lower limbBones of the lower limb

• The femur = bone of the thigh

• The tibia = the medial bone of leg

• The fibula = the lateral bone of leg

• The tarsal bones are 7

• The other bones of the foot