So tired of winter.
Hi all;
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The human skeleton is made from 206 bones which create a framework that supports and protects the body's soft tissues and organs. Movement is the result of the muscles acting on the bones of the skeletal system. Muscles are connected to bones by tendons; bones are connected to each other by ligaments. The places where bones meet each other are called joints. The main difference between the male and female skeleton is that females have a wider pelvis to allow for childbirth. Smaller diferences include a shorter, straighter clavicle in the female (resulting in narrow sloping shoulders), as well as a smaller skull and smaller, lighter bones. The skeleton produces red blood cells from the bone marrow of certain bones and white cells from the marrow of other bones. The skeleton's bones also store minerals such as calcium. Babies are born with 270 soft bones (about 64 more than an adult); many of these will fuse together by age twenty, into the 206 hard, permanent bones. Click on a label at the right, or a link below, to find out more about each part of the skeleton. |
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Every day, physicians use radiography, or x-rays, to view and evaluate bone fractures and other injuries of the musculoskeletal system. However, a plain x-ray test is not the best way to assess bone density. To detect osteoporosis accurately, doctors use an enhanced form of x-ray technology called dual-energy x-ray absorptiometry (DEXA). DEXA bone densitometry is today's established standard for measuring bone mineral density (BMD). It is a quick, painless procedure for measuring bone loss. Measurements of the lower spine and hips are most often done.
The DEXA machine sends a thin, invisible beam of low-dose x-rays with two distinct energy peaks through your bones. One peak is absorbed mainly by soft tissue and the other by bone. The soft tissue amount can be subtracted from the total and what remains is a patient's bone mineral density.
The amount of radiation used is extremely small—less than one-tenth the dose of a standard chest x-ray.
More portable devices that measure the wrist, fingers or heel are sometimes used for screening, including some that use ultrasound waves rather than x-rays.
Osteoporosis involves a gradual loss of calcium, causing the bones to become thinner, more fragile and more likely to break. The DEXA test can assess your risk for developing fractures. If your bone density is found to be low, you and your physician can work together on a treatment plan to help prevent fractures before they occur. DEXA is also effective in tracking the effects of treatment for osteoporosis or for other conditions that cause bone loss. Bone density testing is strongly recommended if you:
For more detailed information on this examination, visit RadiologyInfo.
Judy just told me….
“It’s really hard to take you seriously
when you’re sitting there with a bag on your head.”
I mean really, how rude…
ROTF!