gcse pe theory the skeleton & bones functions of the skeleton shape and support. the skeleton...
TRANSCRIPT
GCSE PE Theory
The Skeleton & Bones
Functions of the skeleton Shape and Support.
The skeleton helps maintain our shape and posture enabling us to stand up-right.
It acts as a support structure for the human body, without it we would be unable to play any sports
Movement. The bones of the
skeleton are jointed so that the body can move around. These movements are adapted and used in sport.
Muscles act to provide the power to move the joints.
Protection The skeleton
serves to protect the delicate organs of the body, e.g. the skull protects the brain, the ribs protect the heart and lungs.
Blood Production Blood cells are
produced by bone marrow which is found in the cavities of large bones such as the femur.
Bones
All the bones of the body form the skeletal system
Bone is hard, rigid non-elastic tissue
Types of Bone. Long
e.g. The bones of the upper and lower arms and legs, collar bone, ribs.
Your height, shoe size and glove size depend on these bones
Short
e.g carpals (wrist), tarsals (feet)
Small and squat Light and very strong
Flate.g pelvis, scapula and
cranium
Large surface area needed for all the muscles to attach to them.
Irregulare.g the vertebrae
They are specially shaped for the job they have to do
What Are They All Called? How many bones
in the skeleton can you name on the worksheet without any help?