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This educational video explains the physiology of the male orgasm, including the stages of sexual response, in clinical terms. Intended for adult health education. Educational only — not medical advice.

The human brain is the command center for the human nervous system. It receives input from the sensory organs and sends output to the muscles. The human brain has the same basic structure as other mammal brains, but is larger in relation to body size than any other brains.

Ultrasound-guided internal jugular cannulation

“Endo” is the Greek word for “inside” and “odont” is Greek for “tooth.” Endodontic treatment treats the inside of the tooth. Root canal treatment is one type of endodontic treatment. To understand endodontic treatment, it helps to know something about the anatomy of the tooth. Inside the tooth, under the white enamel and a hard layer called the dentin, is a soft tissue called the pulp. The pulp contains blood vessels, nerves, and connective tissue and creates the surrounding hard tissues of the tooth during development.

The camera sends images to an external monitor so the doctor can study the inside of your colon. The doctor can also insert instruments through the channel to take tissue samples (biopsies) or remove polyps or other areas of abnormal tissue. A colonoscopy typically takes about 20 minutes to an hour.

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.

Colposcopy (kol-POS-kuh-pee) is a procedure to closely examine your cervix, vagina and vulva for signs of disease. During colposcopy, your doctor uses a special instrument called a colposcope. Your doctor may recommend colposcopy if your Pap test has shown abnormal results.

A lot of women want to know what type of vaginal discharge is normal during pregnancy, and when you're not pregnant. So let's start out by talking about what's normal when you're not pregnant. It's normal to have about 1/2 teaspoon to 1 teaspoon of whitish, creamy, tannish discharge on most days of your cycle in between periods, with the exception of the time of ovulation. Actually, around the time of ovulation, it's normal to notice the discharge becoming more slippery and clear, almost like egg whites. And this is actually a sign that you can watch for to know when you're ovulating. And if you're seeing this type of discharge and you're trying to have a baby, then you should start to time intercourse with ovulation to increase your chances of conceiving.

Dilation and curettage (D&C) is a procedure to remove tissue from inside your uterus. Doctors perform dilation and curettage to diagnose and treat certain uterine conditions — such as heavy bleeding — or to clear the uterine lining after a miscarriage or abortion. In a dilation and curettage — sometimes spelled "dilatation" and curettage — your doctor uses small instruments or a medication to open (dilate) your cervix — the lower, narrow part of your uterus. Your doctor then uses a surgical instrument called a curette to remove uterine tissue. Curettes used in a D&C can be sharp or use suction

Cholelithiasis involves the presence of gallstones (see the image below), which are concretions that form in the biliary tract, usually in the gallbladder. Choledocholithiasis refers to the presence of 1 or more gallstones in the common bile duct (CBD).

Gallbladder cancer is cancer that begins in the gallbladder. Your gallbladder is a small, pear-shaped organ on the right side of your abdomen, just beneath your liver. The gallbladder stores bile, a digestive fluid produced by your liver. Gallbladder cancer is uncommon. When gallbladder cancer is discovered at its earliest stages, the chance for a cure is very good. But most gallbladder cancers are discovered at a late stage, when the prognosis is often very poor. Gallbladder cancer is difficult to diagnose because it often causes no specific signs or symptoms. Also, the relatively hidden nature of the gallbladder makes it easier for gallbladder cancer to grow without being detected. Symptoms ShareTweet Aug. 07, 2014 References Products and Services Book: Mayo Clinic on Digestive Health Give today to find cancer cures for tomorrow See also Abdominal pain Can you recommend a diet after gallbladder removal? Chemo Targets Chemotherapy Chemotherapy and hair loss: What to expect during treatment Chemotherapy and sex: Is sexual activity OK during treatment? Chemotherapy nausea and vomiting: Prevention is best defense Show more Advertisement Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. Advertising & Sponsorship PolicyOpportunitiesAd Choices Mayo Clinic Store Check out these best-sellers and special offers on books and newsletters from Mayo Clinic. NEW! – The Mayo Clinic Diet, Second Edition Relief for America's epidemic of indigestion Keeping your bones healthy and strong Manage blood pressure for better health The Mayo Clinic Diet Online

A hematoma is a common complication of surgical procedures. A large, expanding hematoma can result in necrosis of the overlying skin (1,2) or adjacent subcutaneous fat, increased incidence of infection, scarring, skin hyperpigmentation, tissue edema and a prolonged convalescence.

There are several types of hematomas and they are often described based on their location. Examples of hematomas include subdural, spinal, under the finger or toenail bed (subungual), ear, and liver (hepatic).

This poor old lady came with swelling in her left buttock for 10 days.She had history of injection in her buttocks two weeks back. She developed painful swelling and redness in her left gluteal region with difficulty in walking.It was diagnosed as injection abscess left gluteal region which needs incision and drainage under local anesthesia.Patient part painted and drapped.2% Lignocaine with adrenaline was infiltrated around the swelling for proper filed block.I use no-11 blade for stab incision over the swelling at the most fluctuating point of the abscess.You can watch how pus was flowing out from the cavity.The aim is to drain all pus from the abscess cavity.Finger exploration is essential to break all loculi inside the cavity, to know the depth and extend of the cavity and to fascilitate proper drainage of residual pus.after pus evacuation,, the cavity should be irrigated with normal saline and betadine solution.lastly the cavity to be packed with betadine soaked guage pieces.Proper dressing is essential.the dressing to be changed after 24 hours.daily dressing is essential with a good antibiotic coverage.the cavity usually obliterates within a period of seven to ten days.

9 Months In The Womb: A Remarkable Look At Fetal Development Through Ultrasound

This video is a teaching aid for use in conjunction with broader surgical training

This video presents the concept of head transplant surgery — an experimental and widely debated idea in transplant medicine — together with footage claimed to document an early attempt. It outlines the enormous surgical challenges such a procedure would involve. For learning purposes only — not medical advice.

Doctors trying to reanimate a newborn after delivery.Watch till the end to see what happened..

Most babies will move into delivery position a few weeks prior to birth, with the head moving closer to the birth canal. When this fails to happen, the baby’s buttocks and/or feet will be positioned to be delivered first. This is referred to as “breech presentation.”

Gunshot Wound to the Abdomen: Laparoscopic Exploration and Repair of Small Bowel Injury.