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

our dentist says it's time to remove your wisdom teeth. He may refer you to an oral surgeon, who will do the procedure in his office. It should only take a few days for you to heal and feel back to normal.

Registered Nurse Ken describes what a real "sore throat"

A salivary gland stone -- also called salivary duct stone -- is a calcified structure that may form inside a salivary gland or duct. It can block the flow of saliva into the mouth. The majority of stones affect the submandibular glands located at the floor of the mouth.

An estimated 20 million LASIK procedures have been performed since 1998. The FDA website is filled with stories of complications, including pain, dizziness and detached retinas. CBS2's Chris Wragge reports.

Meningeococcal Bacterial Maningitis Introduction

Patent ductus arteriosus (PDA), in which there is a persistent communication between the descending thoracic aorta and the pulmonary artery that results from failure of normal physiologic closure of the fetal ductus (see image below), is one of the more common congenital heart defects.

Hemodialysis Machine Setup

A lipoma is a growth of fat cells in a thin, fibrous capsule usually found just below the skin. Lipomas aren't cancer and don't turn into cancer. They are found most often on the torso, neck, upper thighs, upper arms, and armpits, but they can occur almost anywhere in the body. One or more lipomas may be present at the same time.

Gastric Lavage Video

New Phacoemulsification Horizontal Chopping

Atrial Fibrillation Effects

procedure is usually done in the hospital or outpatient surgical center under general anesthesia (while you are asleep and pain-free). The procedure is performed in the following way: The surgeon makes a small cut (incision) below the belly button (navel). A needle or tube is inserted into the incision. Carbon dioxide gas is passed into the abdomen through the needle or tube. The gas helps expand the area, giving the surgeon more room to work, and helping the surgeon see the organs more clearly. A tube is placed through the cut in your abdomen. A tiny video camera (laparoscope) goes through this tube and is used to see the inside of your pelvis and abdomen. More small cuts may be made if other instruments are needed to get a better view of certain organs. If you are having gynecologic laparoscopy, dye may be injected into your cervix area so the surgeon can view your fallopian tubes. After the exam, the gas, laparoscope, and instruments are removed, and the cuts are closed. You will have bandages over those areas.

In this animated episode of eOrthopodTV, orthopedic surgeon Randale C. Sechrest, MD narrates the procedure to replace an arthritic knee with an artificial joint.

Acute sinusitis can be triggered by a cold or allergies and may resolve on its own. Chronic sinusitis lasts up to eight weeks and may be caused by an infection or growths. Symptoms include headache, facial pain, runny nose, and nasal congestion. Acute sinusitis usually doesn't require any treatment beyond symptomatic relief with pain medications, nasal decongestants, and nasal saline rinses. Chronic sinusitis may require antibiotics.

Smoking causes: Chronic obstructive pulmonary disease (COPD), a disease that gets worse over time and causes wheezing, shortness of breath, chest tightness, and other symptoms. Emphysema, a condition in which the walls between the air sacs in your lungs lose their ability to stretch and shrink back.

Exo-Glove Poly (Seoul National University). This wearable robot helps disabled patients regain control of their hands.

Glaucoma Pathogenesis Simplified

Providing information on the Atherosclerosis and its complex biological process: it is the idea of this medical video dedicated to the prevention of the cardiovascular risks of diseases.