Top videos
Your baby's sex is set at conception. At around 7 weeks, your baby's internal sex organs – such as ovaries and testes – begin to form in the abdomen. Male and female sex organs and genitalia look the same at this stage because they're derived from the same structures. At around 9 weeks, boys and girls begin to develop differently. In girls, a tiny bud emerges between the tissue of the legs. This bud will become the clitoris. The membrane that forms a groove below the bud separates to become the labia minora and the vaginal opening. By 22 weeks, the ovaries are completely formed and move from the abdomen to the pelvis. They already contain a lifetime supply of 6 million eggs. In boys, the bud develops into the penis and starts to elongate at around 12 weeks. The outer membrane grows into the scrotal sac that will later house the testicles. By 22 weeks, the testes have formed in the abdomen. They already contain immature sperm. Soon they'll begin their descent to the scrotum, but it's a long journey. They'll reach their destination late in pregnancy, or for some boys, after birth. If you're eager to find out whether you're having a girl or a boy, you'll have to wait until you're at least 17 weeks pregnant. That's when the genitals have developed enough to be seen on an ultrasound.
Root canal is a treatment to repair and save a badly damaged or infected tooth instead of removing it. The term "root canal" comes from cleaning of the canals inside a tooth's root. Decades ago, root canal treatments often were painful. With dental advances and local anesthetics, most people have little if any pain with a root canal. In fact, it's probably more painful living with a decayed tooth. Root canal alternatives include extracting the damaged tooth and replacing it with a dental implant, bridge or removable partial denture.
Vasectomy is a minor surgical procedure wherein the vasa deferentia of a man are severed, and then tied or sealed in a manner such to prevent sperm from entering the seminal stream (ejaculate). Typically done in an outpatient setting, a traditional vasectomy involves numbing (local anesthetic) of the scrotum after which 1 (or 2) small incisions are made, allowing a surgeon to gain access to the vas deferens.
Ever considered getting laser eye surgery, but didn’t know how it worked? Allow us to help!
There are three different main types of laser eye surgery: LASIK, SMILE, and Surface Laser Treatments, and each can be explained pretty easily.
LASIK uses two lasers to open up a thin flap on the surface of the cornea, and then reshapes the cornea underneath. The flap is then placed back over the reshaped cornea, and heals independently with time.
SMILE uses one laser to reshape the cornea through a small, self-healing hole.
And Surface Eye Treatments remove the clear skin over the eye, to then reshape the cornea underneath with - you guessed it - a laser!
The most common symptoms of infection from animal bites are redness, pain, swelling, and inflammation at the site of the bite. You should seek immediate medical treatment if any of these symptoms continue for more than 24 hours. Other symptoms of infection include: pus or fluid oozing from the wound
Obstructive lung diseases include conditions that make it hard to exhale all the air in the lungs. People with restrictive lung disease have difficulty fully expanding their lungs with air. Obstructive and restrictive lung disease share the same main symptom: shortness of breath with exertion.
Tension pneumothorax describes the progressive accumulation of air in the pleural cavity (normally a potential space) through a defect in the visceral pleura. This leads to positive pressure being maintained and increasing throughout the respiratory cycle causing vessels within the mediastinum to be compressed with catastrophic consequences if left untreated. Clinical signs include hypoxia, hypotension, tachycardia, reduced breath sounds and hyper resonance ipsilaterally, with tracheal deviation (away from the affected side) and distended neck veins being late clinical signs.
http://sin-celulitis.good-info.co/ Como Quitar La Celulitis, Celulitis En La Pierna, Drenaje Linfatico Celulitis, Reducir Celulitis. Imagina Que En Tan Solo 8 Semenas Pudieras... Usar la ropa que quisieras sin preocuparte. Mirarte al espejo con total satisfacción. Usar ese traje de baño que tanto te gusta. Tener relaciones con tu pareja y volverlo loco con tu piel suave y lisa. Sentirte llena de confianza y optimismo. Olvidarte de la celulitis para siempre. ¿Has deseado alguna vez lucir una piel bella y sin los desagradables hoyuelos causados por la celulitis? Haz Clic Aqui. http://sin-celulitis.good-info.co
Watch as Dr. Benjamin Carson performs risky brain surgery on young Payton to remove a brain tumor. Dr. Carson, director of pediatric neurosurgery, is just one of the many reasons why Johns Hopkins Children's Center was recently ranked #1 in neurology and neurosurgery in America's Best Children's Hospitals 2008
What is polycystic kidney disease? Polycystic kidney disease (also called PKD) causes numerous cysts to grow in the kidneys. These cysts are filled with fluid. If too many cysts grow or if they get too big, the kidneys can become damaged. PKD cysts can slowly replace much of the kidneys, reducing kidney function and leading to kidney failure. How common is PKD? In the United States about 600,000 people have PKD. It is the fourth leading cause of kidney failure. It is found in all races and occurs equally in men and women. It causes about 5% of all kidney failure. What other organs besides the kidney are affected by PKD? PKD can affect other organs besides the kidney. People with PKD may have cysts in their liver, pancreas, spleen, ovaries, and large bowel. Cysts in these organs usually do not cause serious problems, but can in some people. PKD can also affect the brain or heart. If PKD affects the brain, it can cause an aneurysm. An aneurysm is a bulging blood vessel that can burst, resulting in a stroke or even death. If PKD affects the heart, the valves can become floppy, resulting in a heart murmur in some patients. What are the clues that someone has PKD? Most people do not develop symptoms until they are 30 to 40 years old. The first noticeable signs and symptoms may include: Back or side pain An increase in the size of the abdomen Blood in the urine Frequent bladder or kidney infections High blood pressure High blood pressure is the most common sign of PKD. Occasionally, patients may develop headaches related to high blood pressure or their doctors may detect high blood pressure during a routine physical exam. Because high blood pressure can cause kidney damage, it is very important to treat it. In fact, treatment of high blood pressure can help slow or even prevent kidney failure. Fluttering or pounding in the chest About 25% of PKD patients have a so-called floppy valve in the heart, and may experience a fluttering or pounding in the chest as well as chest pain. These symptoms almost always disappear on their own but may be the first hint that someone has PKD. How is PKD diagnosed? Ultrasound is the most reliable, inexpensive and non-invasive way to diagnose PKD. If someone at risk for PKD is older than 40 years and has a normal ultrasound of the kidneys, he or she probably does not have PKD. Occasionally, a CT scan (computed tomography scan) and MRI (magnetic resonance imaging) may detect smaller cysts that cannot be found by an ultrasound. MRI is used to measure and monitor volume and growth of kidneys and cysts. In some situations, genetic testing might also be done. This involves a blood test that checks for abnormal genes that cause the disease. Genetic testing is not recommended for everyone. The test is costly, and it also fails to detect PKD in about 15% of people who have it. However, genetic testing can be useful when a person: has an uncertain diagnosis based on imaging tests has a family history of PKD and wants to donate a kidney is younger than 30-years old with a family history of PKD and a negative ultrasound, and is planning to start a family
Subscribe and 🔔 to the BBC 👉 https://bit.ly/BBCYouTubeSub
Watch the BBC first on iPlayer 👉 https://bbc.in/iPlayer-Home http://www.bbc.co.uk/human Richard Edwards undergoes a double hand transplant in which his hands are amputated and replaced with hands from a donor. This is the first time this has been done. Three months later the new hands are already changing his life.
#bbc
All our TV channels and S4C are available to watch live through BBC iPlayer, although some programmes may not be available to stream online due to rights. If you would like to read more on what types of programmes are available to watch live, check the 'Are all programmes that are broadcast available on BBC iPlayer?' FAQ 👉 https://bbc.in/2m8ks6v.
At each level of the spine, there is a disc space in the front and paired facet joints in the back. Working together, these structures define a motion segment (Fig. 1A). Back pain may result when injury or degenerative changes allow abnormal movement of the vertebrae to rub against one another, known as an unstable motion segment (Fig. 1B). Two vertebrae need to be fused to stop the motion at one segment. For example, an L4-L5 fusion is a one-level spinal fusion (Fig. 1C). A two-level fusion joins three vertebrae together and so on.