The cardiac cycle is the sequence of events that occurs when the heart beats. As the heart beats, it circulates blood through pulmonary and systemic circuits of the body. There are two phases of the cardiac cycle. In the diastole phase, the heart ventricles are relaxed and the heart fills with blood

Dr. Celia Divino, Chief, Division of General Surgery at The Mount Sinai Hospital, performs a laparoscopic appendectomy. Visit the Division of General Surgery at http://bit.ly/18z944M. Click here to learn more about Dr. Celia Divino http://bit.ly/12RF0ee

There are twelve cranial nerves in total. The olfactory nerve (CN I) and optic nerve (CN II) originate from the cerebrum. Cranial nerves III – XII arise from the brain stem (Figure 1). They can arise from a specific part of the brain stem (midbrain, pons or medulla), or from a junction between two parts: Midbrain – the trochlear nerve (IV) comes from the posterior side of the midbrain. It has the longest intracranial length of all the cranial nerves. Midbrain-pontine junction – oculomotor (III). Pons – trigeminal (V). Pontine-medulla junction – abducens, facial, vestibulocochlear (VI-VIII). Medulla Oblongata – posterior to the olive: glossopharyngeal, vagus, accessory (IX-XI). Anterior to the olive: hypoglossal (XII). The cranial nerves are numbered by their loca

Have you ever wondered if your toothbrush bristles are too hard or soft or whether or not it even mattered? Contrary to popular belief, the extra soft or soft bristle option is the best choice you can make when it comes to selecting your bristle. The soft bristles are gentler on the gums and because of their delicate nature, it’s easier for them to glide in between teeth. Using hard or medium bristles increases your risk of receding gums and also heightens tooth sensitivity, since you are wearing down the enamel on your teeth with the rough nature. Schedule a dental appointment now to learn more! visit : https://www.urbndental.com/

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Full Obstetric Examination and Normal Delivery medical video

Nearly 300 million people experience the world without certain colors every day. ‘Color For the Colorblind’ is a short documentary about what happened when we partnered with EnChroma, maker of color blindness-correcting glasses, to help people experience colors for the first time.

Watch that video of 232 Teeth Removal From Indians' Boy Mouth

Juvenile polyposis syndrome (JPS) is a hereditary condition that is characterized by the presence of hamartomatous polyps in the digestive tract. Hamartomas are noncancerous (benign) masses of normal tissue that build up in the intestines or other places. These masses are called polyps if they develop inside a body structure, such as the intestines. The term “juvenile polyposis” refers to the type of polyp (juvenile polyp) that is found after examination of the polyp under a microscope, not the age at which people are diagnosed with JPS.

Upper right quadrant: The right upper quadrant contains the liver and gallbladder, which are protected by the lower right part of the ribcage. The large intestine, or colon, also spends a little time in this section. Upper left quadrant: The left upper quadrant contains part of the stomach and the spleen.

A very funny song made by the staff of the Ob/Gyn Gangnam style

Doctors save the life of an unborn baby who was injured along with her mother in a missile attack in the Syrian city of Aleppo. The video shows a team of emergency medical workers delivering the baby by Cesarean section and then treating the newborn for the shrapnel wounds covering her body and one very large gash in her head. “Medics can be seen frantically reviving the baby, after delivering her by emergency cesarean, as she lies motionless,” the article states. “Eventually the tiny newborn begins to cry and seemingly comes to life as she is given an oxygen mask and rubbed vigorously.” “According to Reuters, the woman also has three other children, all of whom were injured in the attack, but are reported by doctors in the hospital to be in a good condition,” the Daily Mirror article states. The article does not provide the gestational age of the baby before it was delivered. The article said the pregnant woman was hit by a barrel bomb – “crude explosives and shrapnel and dropped from helicopters used by [Syrian] President Bashir al-Assad’s regime." The article notes an estimated 7.6 million Syrians have been displaced by the ongoing civil war and that 320,000, including 11,000 children, have been killed in the conflict. The Daily Mirror also reports that the doctors suggested that the tiny girl be named Amal, which means hope in Arabic. UK Daily Mirror: Incredible footage shows Syrian doctors perform lifesaving caesarean after missile strike leaves shrapnel embedded in unborn baby's face

Female Intermittent Self Catheterization

An excerpt from the award-winning documentary “Exposure: Environmental Links to Breast Cancer” about the effects of radiation. Featuring Olivia Newton-John, Dr. Rosalie Bertell and Dr. Susan Love.

What is hemodialysis and how does it work? Who needs it? How do you prepare for it? In the United States, over 30 million Americans have kidney disease, and sometimes, kidney disease progresses to kidney failure or end-stage renal disease. When this happens, you cannot survive unless you have a kidney transplant or some form of dialysis. So today we're going to talk about hemodialysis.

Your kidneys are the two kidney bean-shaped organs that are located in your lower back, or in your flanks. And the kidneys are responsible for filtering out or cleaning your blood. They get rid of excess waste, excess toxins, and excess fluids. If your kidneys stop functioning, then you develop renal failure or end-stage renal disease.

What is Hemodialysis?
Hemodialysis, or blood dialysis, is the filtering of your blood outside of your body. So, if your kidneys stop working properly, the hemodialysis acts as a substitute kidney. Now it's important to note that hemodialysis does not actually correct your own kidney function. It does not fix or treat your kidneys.

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What is The Dialyzer?
The dialyzer is actually the filter. It's the main powerhouse of the hemodialysis system, and it is what actually acts as the substitute kidney. In the dialyzer, you have these hollow fibers that run through it, and these fibers are bathed in something called dialysates, or dialysis fluid.

How Often Are Patients Treated With Hemodialysis?
Most patients who are on hemodialysis are on it between three and six hours, about three days a week, especially if they go to a center.

How Does Hemodialysis Work?
So when you are on dialysis, how does your blood get from your body to the hemodialysis machine and then back to your body? Well, it does so through tubes, and those tubes are connected to your access, and we'll talk about access in just a moment. But as far as the tubing, the tubing is connected to your body.

Types Of Hemodialysis Access
Arteriovenous Fistula or AV Fistula
The AV fistula is the gold standard as far as hemodialysis access is concerned because it gives you the most efficient hemodialysis and it is the least likely to be infected.

Arteriovenous Graft or AV Graft
The AV graft is very similar to the AV fistula in that you still have a surgically connected artery and a vein, usually in the arm, but in the case where if you have veins that are rather thin or arteries that are thin and maybe too weak in order to really give you a properly functioning, substantial AV fistula, then the vascular surgeon may opt to add an artificial material in order to make that shunt a little stronger, or little more durable. And so, an AV graft is another option for dialysis access.

Catheter
If you're in a situation where you need temporary dialysis, or if you have acute kidney injury, then you may have a temporary Vascath placed, and it's usually placed in a vein of the neck, the internal jugular vein, or it can be placed in the groin, or in the femoral vein.

Who Needs Hemodialysis Treatment?
How do you know if you need hemodialysis, and when is it time to prepare? Well, if you follow up with your kidney doctor (nephrologist) regularly, he or she will be watching your labs. They'll be able to see those signs of your kidneys not functioning properly.

Pediatric Massage

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A high definition medical video showing the Laparoscopic inguinal hernia repair