MOTION SYSTEM IN HUMANS

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					                                   MOTION SYSTEM IN HUMANS



BONE

Function of bone are:
As a means of passive motion
Points of attachment of muscles (Fixasi)
Protect the visceral organs that are important (Protectors)
Enforce and give shape to the body (Power)
Place reforms and the formation of red blood cells
Mineral salt storage



Based on bone shape are grouped into:

Long bones or bones for example pipe arm bone, thigh bone, finger bone sections. Inside the pipe ends
of the bones contain red marrow that acts as a red blood cell formation.

Flat bones example scapula, pelvis, sternum and ribs.

Examples of short bones of the wrist bones, ankles, tepalak hands, soles of the feet and the joints of the
spine.

For example, irregular bones, spine and jaw bone.

Based on the constituent of bone can be divided into hard bone and cartilage.

Hard bone
Composed of CaCO3 (calcium carbonate) and CaPo4 (calcium phosphate). Hard bone formed by bone-
forming cells (osteoblasts). Osteoblasts produce osteocyt (hard bone cells)

Cartilage (Cartilage)

Various kinds of cartilage are:
Hyaline cartilage
Fibrous cartilage
Elastin cartilage



Relationships Between Bone:
Sinarthrosis
Amfiarthrosis
Diarthrosis, Kinds, among others:
joints bullet
hinge joints
rotary joints
saddle joint



muscle

An active locomotor muscles that have the characteristics:
Kontrakbillitas the ability of a tool for change is shorter than its original size.
Extensibility, the ability of muscles to relax or elongate from its original size. Ekstensibiltas is the
opposite of kontrakbilitas.
Elastisits, namely the ability of muscles to return to its original size.



Disorders of the Bones

joints disorders
dislocation
Strain / sprain
Joint inflammation (arthritis)
Cracked or broken bones (fractures)

Disturbances in the joints of the spine
scoliosis
kyphosis
lordosis

Other skeletal disorders
rickets
osteoporosis

Disturbances in Muscles
atrophy
hypertrophy
Muscle spasms
Rigid or Stiff Neck
TetanusHernia abdominal
micro sefalus

				
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