What is a radical neck dissection? when is it done?

What is a radical neck dissection? The surgeon removes a block of tissue from the collarbone to the jaw and from the front to the back of the neck. The large muscle on the side of the neck that is used for rotating, flexing or extending the neck is also taken out, along with the major vein on the side of the neck. Sometimes, a less drastic operation, called a supraomohyoid neck dissection is done. This takes out only the lymph nodes, the tissue surrounding the nodes and a muscle at the front of the neck. Another technique, called a functional neck dissection, saves the muscles of the neck, taking out only the lymph nodes and tissues surrounding them.
What kind of incision is made with a radical neck dissection? The incision depends upon what the surgery is for. It can run from below the ear to the collarbone. Everything in the front of the neck on one side or on both sides may be removed. This may include the lymph nodes, blood vessels, nerves, and the salivary gland under the jawbone.

Why is exercise so important to your health?

Why is exercise so important? 

The heart, like our other muscles, needs to be kept in good condition. The regular pumping that keeps us alive for most people this means blood pumping in and out of the heart about 60 to 80 times every minute is not enough to keep the muscle tuned and the coronary arteries clean. Tuning up the heart is simple: you need to increase its number of beats or pumping cycles at least a few times a week for a minimum of twenty to thirty minutes each time. If you are not well enough to engage in strenuous activity, even some easy physical activity like walking for a reasonable length of time will help the tune-up process.
Using muscles for physical tasks was a daily necessity in primitive societies. Humans were able to endure long bouts of exercise and exposure to heat and cold while seeking and gathering plants, hunting, and fishing. Skeletal analyses of primitive human remains indicate that the early human was an extraordinarily active creature whose bones were as strong as those of a modem conditioned athlete. From this we can infer that the early human’s cardiovascular system was in pretty good shape as well.
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The sedentary lifestyle typical of contemporary society is a major risk factor for heart disease. Inactivity contributes to obesity, diabetes, and high blood pressure, which we already know are correlated with heart disease and lead to fatigue, stress, and often depression.


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