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New Tiny Wireless Pacemaker for the Human Heart
New Tiny Wireless Pacemaker for the Human Heart Scott 8,011 Views • 2 years ago

This tiny wireless pacemaker can be inserted into the body via a catheter instead of invasive surgery.

Diarrhea In Children
Diarrhea In Children samer kareem 1,744 Views • 2 years ago

Encourage your child to drink lots of fluids to prevent dehydration. Milk and water are both fine. However, if your child refuses solids, give your child just milk, rather than water. ... Keep giving your child table foods while he has diarrhea. Diarrhea is most often spread through fecally contaminated food, hands or surfaces touched by objects or hands put into the mouth (fecal-oral route).Water contaminated by human or animal feces (e.g., swimming pools) or trips to sites with animals (e.g., farms, pet stores, petting zoos) are also possible routes of ... The best foods for your child are easily digestible foods, such as rice cereal, pasta, breads, cooked beans, mashed potatoes, cooked carrots, applesauce, and bananas. Pretzels or salty crackers can help your child replace the salt lost from diarrhea. Foods containing large amounts of sugar or fat should be avoided.

Oxygen transport
Oxygen transport samer kareem 5,813 Views • 2 years ago

The protein inside red blood cells (a) that carries oxygen to cells and carbon dioxide to the lungs is hemoglobin (b). Hemoglobin is made up of four symmetrical subunits and four heme groups. Iron associated with the heme binds oxygen.

Wound Healing
Wound Healing samer kareem 8,541 Views • 2 years ago

Wound healing is the process by which skin or other body tissue repairs itself after trauma. ... This process is divided into predictable phases: blood clotting (hemostasis), inflammation, tissue growth (proliferation) and tissue remodeling (maturation).

Spermatogenesis
Spermatogenesis samer kareem 12,589 Views • 2 years ago

Spermatogenesis is the process in which spermatozoa are produced from spermatogonial stem cells by way of mitosis and meiosis. The initial cells in this pathway are called spermatogonia, which yield primary spermatocytes by mitosis.

Heart
Heart samer kareem 13,193 Views • 2 years ago

The heart is the body's engine room, responsible for pumping life-sustaining blood via a 60,000-mile-long (97,000-kilometer-long) network of vessels. The organ works ceaselessly, beating 100,000 times a day, 40 million times a year—in total clocking up three billion heartbeats over an average lifetime. It keeps the body freshly supplied with oxygen and nutrients, while clearing away harmful waste matter.

Cosmetic Eye and Eyelid Surgery
Cosmetic Eye and Eyelid Surgery samer kareem 15,972 Views • 2 years ago

Cosmetic Eye and Eyelid Surgery

Why Does Thinking Hard Make You Tired?
Why Does Thinking Hard Make You Tired? samer kareem 6,505 Views • 2 years ago

Why Does Thinking Hard Make You Tired?

Rupture of Achilles Tendon Repair
Rupture of Achilles Tendon Repair samer kareem 10,079 Views • 2 years ago

an incision made on the back of the lower leg starting just above the heel bone. After the surgeon finds the two ends of the ruptured tendon, these ends are sewn together with sutures. The incision is then closed. Another repair method makes a small incision on the back of the lower leg at the site of the rupture.

Ehlers-Danlos Syndrome
Ehlers-Danlos Syndrome samer kareem 12,752 Views • 2 years ago

Ehlers-Danlos syndrome is a group of disorders that affect the connective tissues that support the skin, bones, blood vessels, and many other organs and tissues. Defects in connective tissues cause the signs and symptoms of Ehlers-Danlos syndrome, which vary from mildly loose joints to life-threatening complications. Previously, there were more than 10 recognized types of Ehlers-Danlos syndrome, differentiated by Roman numerals. In 1997, researchers proposed a simpler classification that reduced the number of major types to six and gave them descriptive names: the classical type (formerly types I and II), the hypermobility type (formerly type III), the vascular type (formerly type IV), the kyphoscoliosis type (formerly type VIA), the arthrochalasia type (formerly types VIIA and VIIB), and the dermatosparaxis type (formerly type VIIC). This six-type classification, known as the Villefranche nomenclature, is still commonly used. The types are distinguished by their signs and symptoms, their underlying genetic causes, and their patterns of inheritance. Since 1997, several additional forms of the condition have been described. These additional forms appear to be rare, affecting a small number of families, and most have not been well characterized.

Mitral valve repair of anterior leaflet perforation and ruptured chordae
Mitral valve repair of anterior leaflet perforation and ruptured chordae samer kareem 17,650 Views • 2 years ago

Mitral valve repair of anterior leaflet perforation and ruptured chordae

Menstrual cycle
Menstrual cycle samer kareem 22,936 Views • 2 years ago

The menstrual cycle is the regular natural change that occurs in the female reproductive system like the uterus and ovaries that make pregnancy possible. The cycle is required for the production of ovocytes, and for the preparation of the uterus for pregnancy.

Nelson's syndrome
Nelson's syndrome samer kareem 4,819 Views • 2 years ago

Nelson syndrome refers to a spectrum of symptoms and signs arising from an adrenocorticotropin (ACTH)–secreting pituitary macroadenoma after a therapeutic bilateral adrenalectomy. The spectrum of clinical features observed relates to the local effects of the tumor on surrounding structures, the secondary loss of other pituitary hormones, and the effects of the high serum concentrations of ACTH on the skin. [1] The first case was reported by Nelson et al in 1958. [2]

Kyphosis
Kyphosis samer kareem 7,636 Views • 2 years ago

Kyphosis, also known as a round back or hunchback, is a condition in which the spine in the upper back has an excessive curvature. The upper back, or thoracic region of the spine, is supposed to have a slight natural curve.

The Scheuermann's Disease
The Scheuermann's Disease samer kareem 9,188 Views • 2 years ago

The gradual curves of the human spine allow the body to absorb many shocks and stresses in daily life. It’s a delicate balance, though, and if part of the spine curves too much, pain and limited mobility may result.

Scoliosis
Scoliosis samer kareem 18,797 Views • 2 years ago

If you look at someone’s back, you’ll see that the spine runs straight down the middle. When a person has scoliosis, their backbone curves to the side. The angle of the curve may be small, large or somewhere in between. But anything that measures more than 10 degrees is considered scoliosis. Doctors may use the letters “C” and “S” to describe the curve of the backbone. You probably don’t look directly at too many spines, but what you might notice about someone with scoliosis is the way they stand. They may lean a little or have shoulders or hips that look uneven. What Causes Scoliosis? In as many as 80% of cases, doctors don’t find the exact reason for a curved spine. Scoliosis without a known cause is what doctors call “idiopathic.” Some kinds of scoliosis do have clear causes. Doctors divide those curves into two types -- structural and nonstructural. In nonstructural scoliosis, the spine works normally, but looks curved. Why does this happen? There are a number of reasons, such as one leg’s being longer than the other, muscle spasms, and inflammations like appendicitis. When these problems are treated, this type of scoliosis often goes away.

Asthma and COPD
Asthma and COPD samer kareem 14,003 Views • 2 years ago

Asthma and COPD

Here's Why Your Skin Doesn't Rip Easily
Here's Why Your Skin Doesn't Rip Easily samer kareem 4,793 Views • 2 years ago

Here's Why Your Skin Doesn't Rip Easily

Neuropathic Gait Demonstration
Neuropathic Gait Demonstration samer kareem 4,742 Views • 2 years ago

This type of gait is most often seen in peripheral nerve disease where the distal lower extremity is most affected. Because the foot dorsiflexors are weak, the patient has a high stepping gait in an attempt to avoid dragging the toe on the ground.

Herpes Encephalitis
Herpes Encephalitis samer kareem 7,403 Views • 2 years ago

Herpes simplex encephalitis is characterized by acute-onset (<1 week) fever, headaches, seizures, altered mental status, and focal neurologic findings such as hemiparesis or cranial nerve deficits. This patient's weakness/fatigue for >1 week, heart murmur, history of drug abuse, and absence of focal neurologic deficits make endocarditis with mycotic aneurysm more likely than herpes encephalitis

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