The Importance of the Skeletal System1.Framework for Shape

The skeletal system gives shape to the body . Without the skeletal system, the body will look like a paper kite without a rigid frame.2. For Support and Anchorage

The skeletal system supports the body weight . Without the bones, you cannot stand or sit erect.

The skeletal system also supports the body by serving as a framework and attachment for tendons, muscles, skin and visceral organs.

The muscles in your arms remain in your arms. Your heart and lungs remain in your chest. Your eyes, nose, and ears remain in your face.

This is possible because your bones provide an anchorage on which the different soft parts of your bodies remain in place.

The skeletal system also provides body support. Below is the chart showing some bones and the support they provide.

BONES SUPPORTPelvic girdle Supports spinal column

and legsSpinal column

Makes body straight; supports head

Sternum Anchorage for the ribs in front

BONES SUPPORTFemur Bears weight of upper

bodyShoulder girdle

Supports arms

3. For Protection of Vital OrgansThe skeletal system protects the body

by enclosing the vital organs such as thebrain, marrow, lungs, heart and other internal organs.

Bones Vital Organs Protected

Skull brain, ears, eyes, nose

Ribs heart, lungs, internal organs

Short and long bones

marrow

Vertebrae Spinal cord

Pelvic girdle reproductive organs

4. For Locomotion and MovementThe skeletal system permits

movement and locomotion by responding to the contractive activities of skeletal muscles at certain joints. Skeletal muscles are muscles which attached to the bones.

Bones Movements AllowedLimbs walk, run, jump, carry loadManual phalanges

handling objects, picking up, writing, hand movements/flexibility

Pedal phalanges balancing weight; flexibility of toes

Vertebrae Head and neck movements; straight body

Axial bones head and torso movementHip bones/pelvis leg movements, sitting

Bones Movements AllowedMandible ( lower jaw )

chewing

Radius and ulna Rotation of the hand