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Q: In natural ecosystems the presence of predators lessens the effects of what among the prey?
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What is fascia's purpose in the human body?

Fascia is a form of connective tissue. Its job is to provide a sliding and gliding environment for muscles, to suspend organs in their proper place, to transmit movement from muscle to the bones they are attached to, and to provide a supportive and movable wrapping for nerves and blood vessels as they pass through and between muscles.


Why is the type of feedback that maintains homeostasis referred to as negative feedback?

Once the desired effect has taken place, feedback is sent to stop any further action by the system. This is called negative feedback because it stops (or lessens) the output. An example of negative feedback: Low body temperature -> shivering -> temperature rises -> stop shivering There are some forms of positive feedback, where the production of something actually leads to further production.


How do you relieve a trapped nerve?

The answer truly depends on the severity of the ulnar entrapment and the location of the ulnar nerve entrapment. Milder ulnar nerve entrapments can sometimes be relieved with physical therapy and bracing the arm in a position that lessens pressure on the ulnar nerve. Moderate entrapments of the ulnar nerve may respond to physical therapy combined with a steroid injection to relieve inflammation. More severe entrapments may require surgical interventions. The most common location for an ulnar nerve entrapment is at the elbow, this is called an ulnar neuropathy at the elbow (UNE). When this is severe the surgical procedure that is utilized is referred to as a surgical transposition of the ulnar nerve & involves moving the ulnar nerve from the back of the elbow to the front of the elbow. Speak with a neuromuscular specialist regarding your case if you feel that you have an ulnar entrapment, and always keep in mind that you may want to get a second opinion. Be prepared for the possibility of an electrodiagnostic examination. This test would help determine if ulnar nerve is involved, where along the ulnar nerve the lesion is, & how severe the ulnar nerve lesion is.


How does negative feedback mechanism and positive feedback differ?

A negative feedback will stabilize an amplifiers positive feed back will force the amplifier to either saturated state. this will hold true for a system too. A more general answer follows. 1. Feedback: Getting information about what just happened and responding to it. 2. Negative Feedback: The response lessens the output. 3. Positive Feedback: The response increases the output.


Do hemorrhoids bleed?

It doesn't really matter how you spell it, hemorrhoids hurt! Many people are embarrased to talk about the subject so they suffer quietly, not really knowing where to turn or what to do. What are hemmorhoids? Hemorrhoids, also known as piles, are a swelling or inflammation of some of the blood veins in the rectum and/or anus. . Internal Hemmorhoids form inside the rectum. These are usually not painful due to the fact that there are no pain receptors in that are. They may, however, bleed when irritated. Internal hemorrhoids can lead to prolapsed or strangulated hemorrhoids if left untreated. External hemorrhoids occur outside of the anal canal. the swelling and irritation can be very painful. The hemmorhoid may become what is known as a thrombosed hemmorhoid if the vein ruptures and a bllodclot develops. The causes of hemorrhoids may include constipation, chronic diarrhea, pregnancy, postponing bowel movements, and fiber-deprived diet. It is also believed that genetics also contribute. Not drinking enough water can cause hard stools leading to irritation to the hemmorhoid. This can also be caused by drinking too much of a diuretic liquid such as coffee or cokes. Excessive lactic acid in the stool caused by excessive consumption of milk products can be reduced by limiting the amount of dairy products in your diet. This may lessen the irritation and bring relief. Additional factors that can cause hemeroids, for those with a genetic predisposition, are obesity and a sedentary lifestyle. Treatments for hemeroids can be broken down into two categories: non surgical and surgical. The non surgical options for treatment of hemeroids are designed to relieve the symptoms of hemeroids. They include: Tub baths or Sitz baths several times a day in plain, warm water for about 10 minutes Application of a hemorroidal cream Suppositories placed in the rectum The surgical options for removal of hemorrhoids include: Rubber band ligation - A rubber band is placed around the base of the hemorrhoid inside the rectum. Cutting off blood circulation causes the hemmorhoid to wither away within days. Sclerotherapy - A chemical solution injected around the blood vessel shrinks the hemorrhoid. Infrared coagulation - Hemorrhoidal tissue is burned with a special device. Hemorrhoidectomy - Occasionally, extensive or severe internal or external hemorrhoids may require removal by surgery known as hemorrhoidectomy. Preventing the recurrence of hemorrhoids will require relieving the pressure and straining of constipation. Doctors will often recommend increasing fiber and fluids in the diet. Eating the right amount of fiber and drinking six to eight glasses of fluid (not alcohol) result in softer, bulkier stools. A softer stool makes emptying the bowels easier and lessens the pressure on hemorrhoids caused by straining. To prevent the hemorrhoids from protruding you should try to eliminate straining.

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