Megacolon, as well as megarectum, is a descriptive term. It denotes dilatation of the colon that is not caused by mechanical obstruction.[1, 2] Although the definition of megacolon has varied in the literature, most researchers use the measurement of greater than 12 cm for the cecum as the standard. Because the diameter of the large intestine varies, the following definitions would also be considered: greater than 6.5 cm in the rectosigmoid region and greater than 8 cm for the ascending colon. Megacolon can be divided into the following 3 categories: Acute megacolon ( pseudo-obstruction) Chronic megacolon, which includes congenital, acquired, and idiopathic causes Toxic megacolon

Ca2+ binds with the membrane of the synaptic vesicles, which causes the vesicles to break and release the neurotransmitter into the synaptic cleft. After the neurotransmitters are released, they diffuse across the synaptic cleft and interact with receptors on the postsynaptic membrane. When the action potential reaches the presynaptic terminal, it provokes the release of a small quantity of neurotransmitter molecules, which bind to chemical receptor molecules located in the membrane of another neuron, the postsynaptic neuron, on the opposite side of the synaptic cleft.

How to improve your eyesight at home? Exercising your eyes is one of those simple things that very few people do. However, it can help you maintain excellent vision. Here are 10 exercises that will take you no more than ten minutes to do. You can give them a try right now while watching this video – we are going to do all of them with you! Exercise #1. Blink for a minute. Exercise #2. Rotate your head while staring ahead. Exercise #3. Look to your right and left. Exercise #4. Close your eyes and relax. Exercise #5. Move your gaze in different directions. Exercise #6. Close and open your eyes. Exercise #7. Push against your temples with your fingers. Exercise #8. Draw geometric figures with your gaze. Exercise #9. Move your eyeballs up and down. Exercise #10. Strengthen your eyes’ near and far focusing.

Soon enough, a robot will be doing surgeries on you!

Examination of the eye,vision,retina and field of vision

Electrical cardioversion is a procedure in which an electric current is used to reset the heart's rhythm back to its regular pattern (normal sinus rhythm). The low-voltage electric current enters the body through metal paddles or patches applied to the chest wall.

Learn one of the hidden reasons why you still have a thyroid symptoms. If your lab results are "normal"--then why do you still have thyroid symptoms like: * Tired, sluggish * Can't lose weight even with exercise * Feel cold—hands, feet, or all over * Require excessive amounts of sleep to function properly * Increase in weight gain even with low-calorie diet * Gain weight easily * Difficult, infrequent bowel movements * Depression, lack of motivation * Morning headaches that wear off as the day progresses * Outer third of eyebrow thins * Thinning of hair on scalp, face or genitals or hair loss * Dryness of skin and/or scalp * Mental sluggishness * Nervousness and emotional * Insomnia * Night sweats

Transcatheter aortic valve replacement (TAVR) has recently emerged as a therapeutic option for patients with severe aortic stenosis

Simple trapeziectomy performed through the anterior approach for osteoarthritis of the thumb-base (trapezio-metacarpal joint). Performed at the Queen Victoria Hospital, East Grinstead.

Neuroanatomy of CSF Flow

wide resection of giant cell tumor ,then strut grafting using free fibula graft,knowles pinning of the graft.

Endoscopic resection of a large right concha bullosa.

💥Patellar Tendon Pain AKA “Jumper’s Knee”👇

💥If you have this, it’s likely because your patellar tendon was over-stressed beyond what it can currently handle (due to loads that are too high or lack of recovery).

🔑 Try 5 reps of 45 second holds
🔑 2 min of rest in between each rep
🔑 Keep your knees at roughly 60 deg angle
🔑 7/10 intensity
🔑Should not increase pain during or after exercise

📚A research article found that this protocol using a knee extension machine provided significant short term pain relief. Most people don’t have a knee extension machine at home, so you could try out a wall sit instead!

🔑It may be useful during the season of competition to decrease pain and allow the athlete to compete, if needed.

❤️ Share this video with a friend who needs it!

The condition is caused by a blockage in the lymphatic system, part of the immune and circulatory systems. Lymphedema is most commonly caused by lymph node removal or damage due to cancer treatment. The main symptom is swelling in an arm or leg that may be accompanied by pain or discomfort. Exercise, wrapping, massage, and compression can help.

Hemodialysis, also called dialysis, is the most common treatment for kidney failure. A dialysis machine is an artificial kidney which cleanses the blood. During dialysis, blood is drawn from the patient into the dialysis machine, circulated through the machine, and then returned to the patient. Two needles are inserted into the patient's bloodstream to allow this process to occur. Hemodialysis is normally performed three times a week and the purpose of vascular access is to provide reliable sites where the bloodstream can be easily accessed each time. There are three major types of vascular access: arteriovenous fistula, arteriovenous graft, and venous catheter. The great majority of vascular accesses are created in the arm, but they can also be created in the leg.

Grisp Reflex

Phlebitis may occur with or without a blood clot. It can affect surface or deep veins. When caused by a blood clot, it's called thrombophlebitis. Trauma to the vein, for instance from an IV catheter, is a possible cause. Symptoms include redness, warmth, and pain in the affected area. Treatments may include a warm compress, anti-inflammatory medication, compression stockings, and blood thinners.

Anatomy of The Superficial Neck

Histology of Dense Bone