Drop Arm Test

Hawkin's Test

A knee revision, from Pakistan!!

The products of a surgical abortion.

Histology of Nasal Cavity

Tonsil Stone Removal with New Tools

Normal sperm densities range from 15 million to greater than 200 million sperm per milliliter of semen. You are considered to have a low sperm count if you have fewer than 15 million sperm per milliliter or less than 39 million sperm total per ejaculate.

A neuron, also known as a neurone (British spelling) and nerve cell, is an electrically excitable cell that receives, processes, and transmits information through electrical and chemical signals. These signals between neurons occur via specialized connections called synapses.

Spinal anesthesia is done in a similar way. But the anesthetic medicine is injected using a much smaller needle, directly into the cerebrospinal fluid that surrounds the spinal cord. The area where the needle will be inserted is first numbed with a local anesthetic. Then the needle is guided into the spinal canal, and the anesthetic is injected. This is usually done without the use of a catheter. Spinal anesthesia numbs the body below and sometimes above the site of the injection. The person may not be able to move his or her legs until the anesthetic wears off.

The fascinating way doctors insert a stent when there is plaque buildup in an artery.

An animation showing vaginal childbirth (delivery)

What is Osteoporosis

The National Institute of Allergy and Infectious Diseases explains food allergy and offers tips on how to manage the condition.

High definition video of a woman giving birth through water vaginal childbirth maneauver.

A friend group (Kate McKinnon, Mikey Day, Heidi Gardner, Ego Nwodim, Bowen Yang) tensely waits for updates on an injured patient.

The importance of being fully informed about serious heart conditions like atrial fibrillation

The Urinary System is a group of organs in the body concerned with filtering out excess fluid and other substances from the bloodstream. The substances are filtered out from the body in the form of urine. Urine is a liquid produced by the kidneys, collected in the bladder and excreted through the urethra.

McRoberts Maneuver for Shoulder Dystocia Birth

Organophosphate poisoning results from exposure to organophosphates (OPs), which cause the inhibition of acetylcholinesterase (AChE), leading to the accumulation of acetylcholine (ACh) in the body. Organophosphate poisoning most commonly results from exposure to insecticides or nerve agents.