What is a Funny Bone?

Bone and skull tissue is composed of a mixture of living cells and minerals (mainly calcium and phosphorus). It is these minerals that make bones have solid physical properties.

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Bone and skull tissue is composed of a mixture of living cells and minerals (mainly calcium and phosphorus). It is these minerals that make bones have solid physical properties.

Bone has different shapes and sizes, for example the arm bone is

The raised bone ends are mainly composed of

It is difficult to imagine that bones are living and growing tissues. How do bones grow?

Bone grows in a unique way: first, new cells are formed, then these cells produce a special organic substance that becomes the matrix surrounding itself, and finally, calcium salts are deposited in the matrix to gradually harden it.

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Animal bones

The fossils of the Ediacaran animal, known to paleontologists for the first time in Australia, are 570 million years ago. They are soft-body animals without hard bones. The earliest known fossils of animals with hard exoskeleton (shell) are

Bone master

Bone is composed of organic and inorganic matter. Organic matter is mainly protein, which makes bone have certain

Guarantee

There are 206 adult bones, divided into skulls,

Consists of hard tissues in the body

In the case of the same bone size, large exoskeleton structures can support relatively less weight than endoskeletons. Therefore, many large animals, such as vertebrates, have endoskeleton structures. Exoskeleton animals such as arthropods, molluscs and some insects have a shell that protects internal organs.

Both arthropods and mollusks have exoskeleton. Because the exoskeleton restricted the growth of the animals, these exoskeleton animals found different solutions. Most mollusks have a calcareous shell, and as they grow, the diameter of the shell increases and its shape does not change. Arthropods shed their old skin during the growth process. This process is called molting. When a new exoskeleton is born, the exoskeleton hardens in different ways (such as lime,

It looks like a balloon filled with water. Coelenterates (such as jellyfish, corals, etc.) and arthropods (such as leeches), which have water skeletons, are filled with fluid.

Could the bone be injured?

Yes, bones may be injured. A violent impact, or an accidental fall, can sometimes cause subperiosteal bleeding. Periosteum is a fibrous membrane that covers the surface of most bones, including blood vessels and nerves.

Bone injuries can cause pain, but usually heal within a few days. If pain persists or you have limited mobility, you should see a doctor. X-rays may be needed to determine if there is a fracture.

What is invasive fracture? What is noninvasive fracture?

The fracture occurred from a serious injury, which could have been caused by a fall or heavy blow. Cracked or broken bones

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The surrounding tissue is not severely damaged and the skin is not damaged, which is called a non-invasive fracture. The surrounding tissue is extensively damaged, broken bones or penetrating adjacent tissue, protruding from the skin, and are called invasive fractures. Injured fractures are susceptible to infection and in most cases require surgery. In the case of a minor fracture, as long as you rest, perhaps with a splint or sling, the wound will heal itself. In case the injury is serious, you must attach the broken bone piece. After the broken bone is connected, you must stop activities. You can apply plaster, use a traction device, or use a fixed needle or plate to fix the bone.

The so-called dislocation? What causes it? How is it treated?

Bone leaves the normal position in the joint, called dislocation, usually caused by a strong blow or a ligament tear; ligament is the tissue that holds the bone in place, and it can tear when damaged.

Dislocations are usually caused by collisions with each other during exercise and can occur in almost any joint. Symptoms are severe pain, rapid swelling of the joints, discoloration of the skin, and inability to move, at which point the joints look deformed. To cure the dislocation, the bone must be reduced by a doctor and then fixed as much as possible.

What is the difference between tendons and ligaments?

Tendons are tough, band-like connective tissues that are thin and strong, tying the muscles to the bones and driving them. The ligament is also a tough, band-like connective tissue that is more elastic than a tendon, holding adjacent bones together and keeping them in place. If the range of motion exceeds the limit or is pulled, the ligaments and tendons will be damaged.

What kind of disease is tendinitis? How to treat it?

tendon

Tendonitis is inflammation of one of the many tendons in the body-the roots can be caused by strained tendons, injured tendons, or muscles that are stretched so tightly that they tend to tighten at rest. Usually the synovial sheath is also inflamed. The role of the synovial sheath is to protect the tendons and to make the tendons slide easily on the bones and joint surfaces. If the synovial sheath is also inflamed, it is called tenosynovitis.

Where tendons connect muscles and bones. Can develop tendinitis, most commonly on the wrist, elbow (tennis elbow), heel, shoulder and knee.

The symptoms of tendinitis are local pain, swelling, and restricted movement. The first step in treatment is to rest the affected area. Applying ice or taking aspirin or ibuprofen can help reduce pain and swelling. In more severe cases, doctors will prescribe drugs.

After the pain is relieved, the next step is to prevent tendon stiffness; this has to be done carefully, or it will worsen the condition. The patient should do some slow and gentle stretching exercises to stretch the affected limb as much as possible without causing pain, maintaining the posture for at least twenty seconds at a time. It is important not to make the affected area stiff due to inactivity. If pain and stiffness do not improve within a week, a doctor should be consulted.

What is a sprain in medicine? What is the difference between a sprain and tendinitis?

A sprain is a torn joint ligament that holds the bones together. It is most common in the ankles, knees, and finger joints. Other joints can sometimes be sprained. Symptoms of mild sprains are similar to those of tendinitis, with both local pain and tenderness. The symptoms of tendinitis usually change slowly. Within a few days of onset, the affected part may still bear weight temporarily, but the condition will be worsened by lack of rest.

A sprain is almost always caused immediately by a direct injury. The injury often loses function in a short period of time, usually accompanied by bruises, and it takes a long time to heal. If the sprain is severe and the ligament is completely torn, it must be treated immediately and may take several months to recover.

Why do you sometimes feel sore muscles the next morning after exercise?

It is likely that you are not preparing enough, exercising too much, or have not exercised for a long time before this exercise.

Muscle contraction during exercise may cause muscle fibers to be pulled excessively; after stopping exercise, muscle fibers swell up and begin to stiffen and ache after a few hours. In fact, strenuous exercise can slightly tear muscle fibers, and muscle fibers swell during rest as part of the healing process.

What is the difference between a torn muscle and a broken lower muscle?

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Muscle injuries and muscle breaks are usually caused by excessive force, but there is a significant difference between the two. Muscles are pulled excessively, especially if they are suddenly pulled excessively.Some muscle fibers will tear, causing pain, swelling and weakness. It is called muscle tear. This is a common injury of athletes when they are not fully prepared and usually heal quickly .

The whole or part of a muscle is detached from the bone and is called a muscle rupture. The injured muscles are weak and surgery may be needed to repair the broken muscles.

How to reduce the pain by tearing the leg muscles?

When a muscle is torn, the activity that caused the injury should be stopped first, and then the injured leg should be raised and iced to prevent swelling. The pain usually subsides within a few days, and the injured should rest the muscles until the pain disappears. If pain and swelling are severe, you should see a doctor. If you have to walk after the injury, you should bandage your leg injury to support your weight or use a crutch to avoid further damage.

After the severely injured muscle is cured, daily activities cannot be resumed immediately. Physical therapy should be performed first to stretch the muscles and strengthen the muscles.

What is the whipping neck injury? Can it be cured?

Whiplash neck injuries are commonly seen in car accidents and are caused by slamming the head forward and then slamming backwards.

The wound is painful and stiff, sometimes lasting for a long time, and severe conditions can cause spinal cord rupture, cause anesthesia in the extremities, and even death.

The most common type of neck injury is torn or torn muscles and ligaments around the cervical spine. The injury takes several weeks to heal, during which the injured person must wear a special collar. After the injury has healed, muscle spasms and pain may still last for some time.

Rest, proper heat and massage can help relieve pain and stiffness. In some cases, taking painkillers and muscle relaxants is also useful, but relying on these drugs may be drug dependent. Emotional tension does not seem to be conducive to rehabilitation. This may be because the head muscles cannot be separated from the tension, so the injured person should strive to relax and avoid emotional tension during the treatment and rehabilitation.

What is bursitis? What are the symptoms?

Mucus bursitis is inflammation of the mucus sac. The mucus sac is located between the bones or between the tendon and the bone, and is filled with lubricating fluid to reduce the friction of the bone. Long-term wear and tear, injuries, and infections are common causes of mucocystitis, and some cases have no obvious cause. Symptoms of mucus bursitis are local pain and swelling. The disease is common in the knee (maid's knee), elbow (student's elbow), shoulder, hip, heel, and base of the toe.

The patient rests the affected area; if necessary, it can be supported by splints or laces. Taking aspirin or paracetamol and applying ice packs can relieve pain. If the pain does not decrease after three or four days, or the affected area becomes more difficult to move, you should consult a doctor. Severe bursitis must be treated with prescription drugs. If the affected area is extremely swollen, the doctor can extract the fluid from the capsule under local anesthesia and inject the medicine into the empty capsule.

The human body has a total of 206 bones, which are divided into three major parts: skull, trunk and limbs. They are distributed throughout the body, supporting the body and protecting internal organs, while being assisted by muscles for various activities. Without bones, the human body becomes a pile of meat. What else can we do? So it cannot be without bones.

All bones of the human body are different in shape and size, some are larger, such as the tibia, humerus, etc., and some are smaller, such as the phalanges. From the shape can be roughly divided into 5 types: long bones, short bones, flat bones, irregular bones and gas-containing bones. Flat bones protect internal organs, such as the skull to protect the brain, and rod-shaped bones are responsible for human movements, such as the bones of the limbs.