Ready-made, educational science resources!

Explore the largest internal organ with our 3D liver model and and hepatic lobule microanatomy model.

Hormones regulate internal functions from metabolism and growth to sexual development and the induction of birth. They circulate through the bloodstream, bind to target cells, and adjust the function of whole tissues and organs.

The flu is disruptive enough to have its own season. Learn about what causes the flu, flu symptoms and what the flu virus does to the body, and how you can prevent it.

Headaches - they're a real pain in the, well, head! There are many different types of headaches, and even more different triggers and causes - here are five headache facts to help you learn more about this common ailment.

Does cracking your knuckles lead to arthritis? If you pluck a gray hair, will more grow back? Do we really use only 10% of our brains? In this video, we tackle some famous myths and old wives' tales.

The most complex workings of the nervous system depend on messages sent through neurons. Together with their support cells, neuroglia, neurons make up all nervous system tissue. They receive and relay messages quickly, conducting them as electrical signals.

Immunity is the body’s defense system against infection and diseases where white blood cells play a key role. Some rush to attack any harmful microbes that invade the body, while other white blood cells become specialized and adapt to fight particular pathogens.

The lymphatic system works to filter unwanted substances out of the bloodstream and body tissues. How does the body destroy harmful pathogens?

The heart pumps blood through a vast network of arteries and veins. Blood is a living fluid. It transports oxygen and other essential substances throughout the body, fights sickness, and performs other vital functions.

The heart pumps blood through a vast network of arteries and veins. Blood is a living fluid. It transports oxygen and other essential substances throughout the body, fights sickness, and performs other vital functions.

Gotta go? Before you do, check out this walkthrough of the urinary system, how urine is created, and the differences between male and female urinary anatomy.

25 Flashcards. 25 terms. Difficulty: Hard.

5 Flashcards. 5 terms. Difficulty: Easy.