Notes

LETS TRY!
Gently press the sides of your wrist. gently press the top of your head. what do you feel? those are your body"s bones. fell the bones in your arms and legs. how are they different or alike from the bones in your head.? compare the bones in some parts of your body using size,shape,etc.

BONES
DO YOU KNOW THAT ARE AROUND 206 BONES IN YOUR BODY? WHEN YOU WERE A BABY, HAD ABOUT 305 BONES,SOME OF THEN EVENTUALLY FUSING TOGETHER. EACH BONE HAS A SPECIFIC SIZE AND SHAPE THAT MATCHES ITS FUCTIONS. THERE ARE FLAT BONES AND IRREGULARLY SHAPED BONES.
THE BONES IN YOUR BODY HAVE TWO DIVISIONS THE AXIAL SKELETON PROTECTS THE DILICATE ORGANS IN THE BODY. THE APPENDICULAR SKELETON PROVIDES SUPPORT AND AIDS THE BODY IN MOVEMENT.

THE SKELETAL SYSTEM GIVES THE BODY STRUCTURAL SUPPORT AND SHAPE. IT HOLDS THE BODY AS ONE AND ALLOWS IS TO MOVE. WHAT COMPOSES THE SKELETAL SYSTEM? HOW DOES EACH PART OF THE SKELETAL SYSTEM HELP THE BODY IN TERMS OF FORM AND MOVEMENT?

THE AXIAL SKELETON IS COMPOSED OF BONES THAT PROTECH, LIKE THE SKULL,BACKBONE,BREASTBONE,AND RIBS. THE SKULL PROTECHS THE BRAIN. IT IS MADE UP OF MANY BONE WHICH ARE FUSED TOGETHER TO FORM A HELMETLIKE STRUCLTURE CALLED THE CRANIUM. ATTACHED TO THE SKULL IS THE BACKBONE OR SPINAL COLUMN. IT IS MADE UP OF IRREGULARLY SHAPED HOLLOWS BONES CALLED VERTEBRAE(SINGULAR:VERTABRA) THAT ARE STACKED ON TOP OF EACH OTHER THE BREASTBONE IS A LONG FLAT BONE TO AT THE RIBS THE BRESTBONE AND RIBS ENCLOSE THE HEART AND LUNGS.

THE APPENDICULAR SKELETON IS COMPOSED OF BONES THAT AID MOVEMENT. THESE INCLUDE THE COLLARBONES,THE SHOULDER BLADES, AND THE BONES OF THE ARM,LEGS,AND HIPS

THE BONES THAT PROTRUDE AT THE BASE OF THE NECK ARE THE COLLARBONES. THEY ARE ATTACHED TO TRIANGULAR BONES CALLED SHOULDER BLADES.BOTH BONES STABILIZE THE RIB CAGE AND CONNECT THE SHOULDERS TO THE ARMS.

THE ARM HAS THREE BONES,ONE IN THE UPPER ARM AND TWO IN THE LOWER ARM. EACH HAND ALSO HS SEVERAL BONES FOR THE FINGERS AND PALM. THE SAME CAN BE SAID FOR THE LEG AS WELL AS TWO BONES IN THE LOWER LEG. BETWEEN THE UPPER AND LOWER LEG IS THE KNEECAP. THE FOOT ALSO HAS SEVERAL BONES. JUST BELOW THE WAIST,YOU CAN FEEL THE HIPBONE WHICH CONNECTS THE BACKBONE AND THE LEGS.