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The most-watched medical videos on MedicalVideos.com — ranked by views from our community of medical students, healthcare professionals, and patients learning how the body works.
On screening colonoscopy, this abnormality was encountered in the cecum. This round worm is Ascaris Lumbricoides, one of the most common human parasites in the world. When ingested, the durable Ascaris eggs hatch in the small intestine releasing larva that migrate through the intestinal wall, and t...ravel both hematogenously and lymphatically to the heart and lungs. Over the next several days, the larva mature in the alveoli, then migrate up the trachea to be swallowed back into the gastrointestinal tract. These larva will then mature in the small bowel; adults couples will succeed in producing an extraordinary number of eggs, over 200,000 ova per day. The adults live one to two years. The majority of Ascaris infections are as in this example asymptomatic. Symptoms are a consequence of either the immunologic hypersensitivity of the host to the worm as in the pulmonary stage referred as Loffler's syndrome or to mechanical obstruction of lumen by the worm. Heavy worm burden can result in intestinal obstruction and migrating worms can cause pancreatitis and/or cholangitis when involving the pancreatobiliary tree. Multiple medical therapies are approved for its treatment including mebendazole. Epidemiologically, infections are most common in areas of lower socio-economic conditions. This man manages a pig farm in China that is used to test pharmaceutical agents. From an endoscopic standpoint it is noteworthy that the worms do not like light and will move away fro the attention it is receiving. In this example, the endoscopist was too slow to snare his prey which succeeded in escaping temporarily into the cooler and darker confines of the small bowel out of reach of the endoscope but not from the soon to be consumed anti-helminthic therapy.
Ovulation is the release of eggs from the ovaries. In humans, this event occurs when the follicles rupture and release the secondary oocyte ovarian cells. After ovulation, during the luteal phase, the egg will be available to be fertilized by sperm
A Pap smear (also called a Pap test) is a screening procedure for cervical cancer. It tests for the presence of precancerous or cancerous cells on the cervix, the opening of the uterus. It's named after the doctor who determined that this was a useful way to detect signs of cervical cancer.
A no-scalpel vasectomy is performed in this detailed urology video, showing how the vas deferens is accessed through a tiny puncture rather than a conventional incision. The technique is a widely used method of permanent male contraception. For students and for men researching the procedure. Educational only — not medical advice.
A water birth means at least part of your labor, delivery, or both happen while you’re in a birth pool filled with warm water. It can take place in a hospital, a birthing center, or at home. A doctor, nurse-midwife, or midwife helps you through it. In the U.S., some birthing centers and hospitals offer water births. Birthing centers are medical facilities that offer a more homelike setting than a hospital and more natural options for women having babies. The use of a birthing pool during the first stage of labor might: Help ease pain Keep you from needing anesthesia Speed up your labor The American College of Obstetricians and Gynecologists (ACOG), which sets guidelines for pregnancy and childbirth care in the U.S., says a water birth during the first stage of labor may have some benefits but delivering your baby underwater should be considered an experimental procedure with risks. The first stage is from when contractions start until your cervix is fully dilated.
This recording follows a cesarean section birth from the operating room, showing how a baby is delivered through an abdominal incision. It gives students and expectant parents a clear view of how a C-section proceeds in practice. For learning purposes only — not medical advice.
Childbirth (also called labour, birth, partus or parturition) is the culmination of a human pregnancy or gestation period with birth of one or more newborn infants from a woman’s uterus. The process of normal human childbirth is categorized in three stages of labour: the shortening and dilation of the cervix, descent and birth of the infant, and birth of the placenta. In some cases, childbirth is achieved through caesarean section, the removal of the neonate through a surgical incision in the abdomen, rather than through vaginal birth
The baby will move head down if there is room or if there is tone in the support to the uterus to direct baby head down. Before 24-26 weeks most babies lie diagonal or sideways in the Transverse Lie position. Between 24-29 weeks most babies turn vertical and some will be breech.
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