Skeletal System 

  

   The Skeletal System

- It gives shape of the body .                     
- It provides support to the body.
- It provide movement of the body.
- muscles helps a person move
- Produces blood cells
- Stores calcium          

SECTIONS OF THE SKELETAL SYSTEM

• Axial skeleton

• Appendicular skeleton

AXIAL SKELETON-  Skull

 
• The skull consists of the 
cranium and facial bones.

• Cranium

    

▫ 1 frontal
▫ 2 parietal
▫ 2 temporal
▫ 1 occipital
▫ 1 ethmoid
▫ 1 sphenoid

• Sutures.


• Facial bones 

▫ 5 nasal
▫ 2 maxilla
▫ 2 lacrimal
▫ 2 zygomatic
▫ 2 palatine
▫ 1 mandible



• 26 Vertebrae

• 7 cervical
• 12 thoracic
• 5 lumbar
• 1 sacrum

• 1 coccyx

Thorax

• 12 pair Ribs
• 7 true
• 5 false
• Sternum
▫ Manubrium
▫ Gladiolus

▫ Xiphoid process

APPENDICULAR SKELETON: SHOULDER GIRDLE
• Shoulder girdle 
• 2 clavicles

• 2 scapulas.


APPENDICULAR SKELETON: ARMS AND HANDS

• Arm bones:

▫ Humerus
▫ Ulna
▫ Radius
• 
▫ 8 carpals
▫ 5 metacarpals

▫ 14 phalanges

APPENDICULAR SKELETON: 

PELVIC GIRDLE

• Pelvic girdle is made of 2 hip
bones, which connect at
the symphysis pubis.

• Each hip bone is composed
of 3 sections:
▫ Illium
▫ Ischium
▫ Pubis

APPENDICULAR SKELETON: LEGS AND FEET
• Leg bones:
▫ Femur
▫ Patella
▫ Tibia
▫ Fibula
• Foot bones:
▫ 7 tarsals
▫ 5 metatarsals
▫ 14 phalanges