Inventors are using small-scale biology and engineering to find ways to use the body's natural defenses to effectively treat cancer. National Science Foundation-funded small business GigaGen uses microfluidics, bioinformatics and genome...

We've already learned about hormones in the context of the endocrine system, but now let's get a closer look at how these influence the development of sexual characteristics as well as sexual behavior. How and when does this happen? How...

This lesson details the complex process of gastrointestinal absorption of vitamin b12 through utilization of haptocorrin and intrinsic factor, the process of transportation of vitamin b12 through our body via transcobalamin and...

Microscopic appearance of the blood.

In this live-action program viewers will learn that mechanical and Chemical digestion Is the process of turning food into its component chemicals. Students will come to understand The first step in digestion is ingestion of food into the...

Medicine/Biochemistry lesson on iron absorption, transport in the blood, metabolism and regulation of iron uptake in the body.



NOTE: There is a mistake in this video: ferritin binds to Fe3+ and not to Fe2+. Sorry for the...

This live-action video program is about white blood cells. The program is designed to reinforce and support a student's comprehension and retention of the term through use of video footage, photographs, diagrams and colorful, animated...

Lesson on African Trypanosomiasis (African Sleeping Sickness): Causes, Symptoms and Treatment. African Trypanosomiasis is caused by parasitic protozoa from the genus trypanosoma. Trypanosoma protozoa are carried in the tsetse fly, and...

The endocrine system is composed of glands that produce hormones to affect changes in distant target organs. It is crucial in maintaining homeostasis—balance—in the body. There are seven major endocrine glands scattered throughout the...

Negative feedback sounds like a bad thing, right? Well actually it’s not bad at all. In fact it’s a very important process that occurs in our bodies all the time. But what does it actually do? What does negative feedback mean?

Now that we understand the structure and function of the heart, which is to pump blood all around the body, what is the blood traveling around in exactly? Those would be blood vessels. There are many kinds, like arteries, arterioles,...

We just learned about drug administration, or the ways that drugs can enter the body. What happens next? How do drugs move around the body to get to where they need to go? The study of this is called pharmacokinetics. Let's get into the...

The video discusses the human endocrine system and how it works to coordinate hormonal communication between various organs in the body. It explains that the endocrine system consists of several glands located around the body that...

Type 2 diabetes is reaching near-epidemic levels. It is a serious health condition affecting millions of people and increasing their risk for additional health issues. More young people have been diagnosed with diabetes than ever before....

The video discusses the concept of negative feedback as a control mechanism that aims to maintain a constant water concentration in the blood. It explains that ADH, a hormone released by the pituitary gland, has the effect of making the...

When a patient must be administered a drug in a medical setting, how does this occur? Well there are lots of ways. Pills or tablets can be ingested orally. There are topical creams, tubes, injections, and more. How does each one work,...

Brain scans enable Psychologists and Neuroscientists to look inside the brain without having to open the patient's skull. In this video we cover four key types of brain scan that every Psychology student needs to know: 1) Computerised...

Of course we all know what blood is, and everyone has had at least a minor injury involving blood. But what is it exactly? What's it made of? What does it do? Why do we die if we lose enough of it? Let's check out each component of blood...

You've probably heard of glands and hormones, especially since we learned a little about how hormones interact with receptors in the biochemistry series, but what are they in the greater context of human anatomy and physiology? Let's...

We are able to become physically dependent on a wide variety of substances, which results in what we call drug addiction. What does this look like from a neurophysiological standpoint? What does the drug-addicted brain look like? Let's...

An excerpt from Alcohol and the Human Body, a 1949 production of Encyclopaedia Britannica Films.

A hormone is a chemical messenger that is secreted (or released) into our bloodstream by specific organs known as glands. Hormones regulate (or control) many processes in our body, including blood glucose levels, water content in blood,...

In this video, we’re going to look at the enzymes involved in digestion in more detail.

Some people use marijuana for medical reasons. Many more use it for recreational purposes. It's legal in some states and illegal in others. This program is designed for young learners and presents information about what marijuana is and...