In this video, I explain what is mean arterial pressure [MAP]. I then do three example calculations and explain the clinical significance.

In this video, we explore the meaning of elevated liver and biliary enzymes.

This nugget explains pollution of the layers surrounding the earth, air pollutants, global warming and green house effect, acid rain, ozone hole, photochemical smog.

Male Repro

Who’s that over there? Flash has just spotted another cool creature he can add to his Animal Alphabet! Our intrepid traveller Flash explores land, sea and air spotting different species of wildlife in their natural habitats and...

There have been lots of recommendations over the years to eat a low-sodium diet. We've talked about the evidence on this before. Well, get ready to taste salt again. Research points to the conclusion that low sodium diets don't do much...

Acute Gastritis (Stomach Inflammation) | Causes, Signs & Symptoms, Diagnosis, Treatment



Acute gastritis is a condition involving inflammation of the gastric (stomach) mucosa. A wide variety of factors can cause acute...

How do breathalyzers work? And will there ever be a breathalyzer for marijuana? As pot has become legal in several states, law enforcement has sought a method to detect marijuana use in drivers. This is complicated, though. Breathalyzers...

This video explains the science behind period cramps by examining the female reproductive system. The uterus grows a thick inner lining called the endometrium every month in preparation for pregnancy, and if pregnancy doesn't occur, the...

Hemoglobin Function Haldane Effect

We haven't always been right in regards to medical treatments. . . Unfortunately

This video dissects the mechanism by which the Pancreatic β-cells sense blood glucose levels and secrete a proportional amount of insulin through negative feedback.<br/>

Colon Cancer (Colorectal Carcinoma) is a cancer of the large intestine and/or rectum. This cancer can cause a variety of signs and symptoms, which we will discuss in this lesson.

In this video, we explore the basics of deep vein thromboses [DVTs] and pulmonary embolisms [PEs].

On this episode of Breaking Trail, Coyote gets brutally chomped by a GIANT Leafcutter Ant! Predominately found in South and Central America, the Leafcutter Ant is truly an amazing creature. The complexity of teamwork and organization...

Electronic memory chips may soon gain the ability to bend and twist as a result of work by engineers at the National Institute of Standards and Technology (NIST).