1. It is the center part of the skeleton
Skeletal System
Parts of the Skeleton
1. AXIAL skull, spinal column, ribs,
sternum, hyoid
It is the center part of the skeleton
2. APPENDICULAR SKELETON shoulder girdle, arms, pelvis, legs
the parts that hang off the axis

2. Skeletal System AXIAL SKELETON SKULL 8 cranial bones, 14 facial bones
RIBS 12 pairs,
-1st 7 pairs are “true ribs”
they attach directly to the sternum
-next 3 pairs “false ribs”
they attach to the sternum by cartilage
last 2 pairs are “floating ribs”
They do not connect to the sternum

3. The tip of the sternum is the Xiphoid process
Skeletal System
STERNUM “breast bone” has 3 parts
The tip of the sternum is the Xiphoid process
Why is it important????
CPR

4. Vertebrae –bones of the spine
Skeletal System
Spine – Vertebral Column
Encloses the spinal cord
It is strong and flexible
Vertebrae –bones of the spine
Vertebrae are separated by pads of cartilage called discs
As we age the discs thin out and we loose height

5. Skeletal System Cervical spine (7) C1-C7
Atlas C1 allows us to nod our heads
Axis C2 allows us to turn our heads
2. Thoracic spine (12) T1-T12 chest area
3. Lumbar spine (5) L1-L5 lower back area
4. Sacrum triangle shaped bone, we sit on it
5. Coccyx tailbone

6. Skeletal System
What happens when C2 is fractured and the spinal cord is damaged???
Paralysis
What procedure is performed between L3 and L4???
Lumbar puncture

7. APPENDICULAR SKELETON
Skeletal System
APPENDICULAR SKELETON
Shoulder girdle consists of the
-Clavicle collar bone
-Scapula shoulder blade
Upper arm humerus 2nd largest bone in the body
Lower arm consists of the
-Radius thumb side
-Ulna upper end forms the “funny bone”

8. Skeletal System Hand has 27 bones, consist of the
-Carpals wrist bones, permit movement
-Metacarpals compose the hand
-Phalanges fingers
Thumb is the most flexible finger
Only humans and primates have thumbs

9. Skeletal System Pelvic girdle hip and pelvic bones
Why are women’s wider??
Upper leg femur longest and strongest
bone in the body
It would take 15,000-19,000 lbs. of pressure applied to the top of the bone to break the femur

10. Skeletal System Lower leg consists of the Tibia shin bone
Fibula outer leg bone
end of the bone joins the foot and we call it the ankle bone, but really isn’t
Foot consists of the
Tarsals ankle bones
Metatarsals bones of the feet
Phalanges toes
Calcaneous heel bone