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Chapter 15 Medical Terminology


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Define and describe musculoskeletal system
The musculoskeletal system includes the bones, muscles, and joints
Describe the job of the bones
1. PROVIDE framework around which the body is constructed
2. PROTECT and support internal organs
3. ASSIST the body in movement because they are a point of attachment for muscles
Describe the job of the muscles
responsible for movement by contraction and relaxation
Describe the job of the joints
the places at which bones come together
Physicians who treat bones and bone and joint diseses
Physicians who primarily treat joint diseases
Osteopathic Physicians
(DOs) practice osteopathy,
a seperate school of medicine using diagnostic and therapeutic measures based on the belief that the body is capable of healing itself when bones are in proper position and adequate nutrition is provided
are neither physicians or osteopaths, they use physicial means to manipulate the spinal column, believing that disease is caused by pressure on nerves
what are osteoblasts
immature osteocytes that produce the bony tissue that replaces cartilage during ossification
what are osteoclasts
are large cells that function to reabsorb, or digest, bony tissue from the inner sides of bones and thus enlarge the inner bone cavity so that the bone does not become overly thick and heavy
how many bones of various types are in the body
shallow cavity in or on a bone
opening for blood vessels and nerves
a narrow, deep, lit-like opening
a hollow cavity within a bone

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