گالری عکسهای علمی علوم پزشکی

[arshade90]

یه گلبول قرمز به دام افتاده در فیبرین

 

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First Trimester: The Baby at 4 weeks

Your baby's brain and spinal cord have begun to form.
The heart begins to form.
Arm and leg buds appear.
Your baby is now an embryo and 1/25 of an inch long.

at 8 weeks

Fetal development at 16 weeks

The fetus now measures about 4.3 to 4.6 inches and weighs about 2.8 ounces. The baby's eyes can blink and the heart and blood vessels are fully formed. The baby's fingers and toes should have fingerprints.

Fetal development at 20 weeks

The baby weighs about 9 ounces and is about six inches long. The baby can suck a thumb, yawn, stretch, and make faces. Soon -- if you haven't already -- you'll feel your baby move, which is called "quickening

 

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DON'T: Squeeze Your Pimples

When a whitehead seems to beckon, "Squeeze me," it's best to resist. If you squeeze pimples, you can prolong their healing time. You also increase the risk of infection and scarring. And "squeezing the pimple will mess up the skin on top," says dermatologist Jonette Keri. A ruptured pimple is actually harder to cover with makeup because you're dealing with a ragged surface instead of a smooth one.

 

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Colds & Antibiotics: Just Say No

You can't get rid of a cold-caused sore throat with antibiotics. That's because colds are caused by viruses, and antibiotics only work against bacteria. Besides, taking antibiotics unnecessarily can contribute to the growing problem of microbial resistance. When bacteria are frequently exposed to antibiotics, they may become "superbugs" that can't be treated with standard medications.

Home Care for Sore Throats

Whether you've got a sore throat from strep or a cold, there are steps you can take at home to relieve the ache. One trick for soothing a sore throat is a saltwater gargle. Try mixing a teaspoon of salt into a glass of water to make this easy remedy, which can help keep the throat moist and reduce that raw, scratchy feeling.

Humidifier or Vaporizer

Breathing in steam from a humidifier or vaporizer can keep a sore throat moist and cut down on pain. You can get the same result by leaning over a sink with hot running water. Drape a towel over your head to trap the steam and breathe deeply. Try this for five to 10 minutes several times a day.

Pain Relievers

Over-the-counter pain relievers, like acetaminophen, ibuprofen, or naproxen, can temporarily dull the pain of a sore throat. (Do not give aspirin to children and teenagers because of the risk of the rare but potentially fatal Reye's syndrome.)

 

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What Is the Thyroid Gland?

The thyroid is a butterfly-shaped gland in the front of the neck. It produces hormones that control the speed of your metabolism -- the system that helps the body use energy. Thyroid disorders can slow down or rev up your metabolism by disrupting the production of thyroid hormones. When hormone levels become too low or too high, you may experience a wide range of symptoms.

 

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Graves' Disease

The most common cause of hyperthyroidism is Graves' disease. This is an autoimmune disorder that attacks the thyroid gland and triggers the release of high levels of thyroid hormones. One of the hallmarks of Graves' disease is a visible and uncomfortable swelling behind the eyes.

Graves' disease, which is caused by a generalized overactivity of the thyroid gland, is the most common cause of hyperthyroidism. In this condition, the thyroid gland usually is renegade, which means it has lost the ability to respond to the normal control by the pituitary gland via TSH. Graves' disease is hereditary and is up to five times more common among women than men. The triggers for Graves' disease include stress, smoking, radiation to the neck, medications, and infectious organisms such as viruses. Graves' disease can be diagnosed by a nuclear medicine thyroid scan and blood test. Graves' disease may be associated with eye disease (Graves' ophthalmopathy) and skin lesions (dermopathy).

 

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Hashimoto's Disease

The most common cause of hypothyroidism is Hashimoto's disease. This is an autoimmune disorder in which the body attacks the thyroid gland. The result is damage to the thyroid, preventing it from producing enough hormones. Hashimoto's disease tends to run in families.

 

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Men Let Go Faster Than Women

Women tend to remember negative experiences longer and may have lingering feelings of stress, anxiety, or sadness. In contrast, men are less likely to dwell on unpleasant events and tend to move on more quickly. So while you may still want to talk about last night's argument, your guy may have already forgotten about it.

 

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Men Respond to Appreciation

Showing appreciation for your guy can make a big difference in the way he acts. Take parenting. Studies show that fathers are more involved in care-giving when their wives value their involvement and see them as competent.

 

[arshade90]

از همکاریه همه دوستان سپاس گزارم.

سعی بشه که عکسا فقط به علوم پزشکی ربط داشته باشه.

 

[arshade90]

اینم یه E.coli شیطون

 

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Fractures across a growth plate​

A green stick fracture is an incomplete fracture in a long bone of a child who has not finished growing. A fracture involving a growth plate (the cartilage plate near the end of the bone of a growing child where growth occurs) can lead to disturbances in growth of the bone, even if treated properly.​

 

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Fracture types (2)​

There are several types of bone fracture, including:

Greenstick - an incomplete fracture in which the bone bends

Transverse - a fracture that goes across the bone's axis

Simple - a fracture which does not break the skin​

 

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Radial head injury

Radial dislocation may be caused by a sudden pull on a child's arm or hand. For first aid, immobilize the arm and take the child to the doctor's office or emergency room.​

 

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Collapsed lung, pneumothorax

A collapsed lung, or pneumothorax, occurs when all or part of a lung collapses or caves inward. This occurs when air gets in the area between the lung and chest wall. When this happens the lung cannot fill up with air, breathing becomes hard, and the body gets less oxygen. A collapsed lung can occur spontaneously in a healthy person or in someone who has lungs compromised by trauma, asthma, bronchitis, or emphysema.​

 

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Acute MI

A heart attack or acute myocardial infarction (MI) occurs when one of the arteries that supplies the heart muscle becomes blocked. Blockage may be caused by spasm of the artery or by atherosclerosis with acute clot formation. The blockage results in damaged tissue and a permanent loss of contraction of this portion of the heart muscle​

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