The world is full of microbes and viruses that can get us sick, but we’ve got an Avengers-style defense system ready to take them on. In this episode of Crash Course Biology, we’ll learn about an animal’s immune system, from their skin...

When you think about the body’s infrastructure, you probably think of bones. But what about the heart, the blood vessels, and the lymphatic system? In this episode of Crash Course Biology, we’ll tour the cardiovascular, lymphatic, and...

Explore the lymphatic system with the Amoeba Sisters! This introduction talks about lymph, the general way lymph travels in the lymphatic system, primary and secondary lymphoid organs and tissues, general functions of the lymphatic...

Ever stop to ponder how your brain ponders its own complexities? How does it know to tell your limbs to stop moving and have a think? Fear not, because we have answers to many questions about those wrinkly sponges!

If you found the whiteish-yellowish lump on your throat, that might be a tonsil stone. But where does the lump come from? Why do you have it?

Did you know we are still discovering completely new pieces of our anatomies? Even in the last decade, we've found multiple new body parts, including some you can see with the naked eye!

Scientists have found a hidden network in the brain, and it might prevent people from developing certain diseases.

Today Hank explains your unsung lymphatic system and how it supports cardiovascular function by collecting, filtering, and returning interstitial fluid back into the bloodstream via a system of lymphatic vessels. He also explains the...

Howcast - Learn how to make a homemade facial scrub from licensed esthetician Joanna Vargas in this skin care video from Howcast.

Howcast - Learn how to make a banana facial mask from licensed esthetician Joanna Vargas in this skin care video from Howcast.

Howcast - Learn how to treat cystic acne from licensed esthetician Joanna Vargas in this Howcast video.

Howcast - Learn how to make a homemade acne mask from licensed esthetician Joanna Vargas in this Howcast video.

The lymphatic system consists of a complex network of lymphatic vessels, glands or nodes, and organs, such as the spleen and thymus, extending throughout the body. Through it flows a fluid called lymph. The lymphatic system has three...

We use a microscope to examine the blood flow in the open circulatory system of asellus aquaticus. We are able to see the haemolymph moving through its limbs in different directions. Biology - Human Body - Learning Points. Large...

El sistema linfático es el sistema de eliminación de toxinas, desechos y exceso de agua en el cuerpo. Funciona como un sistema de drenaje unidireccional que transporta el líquido linfático desde los tejidos hacia la circulación...

इस वीडियो में शरीर के लसिका तंत्र (lymphatic system) की महत्वपूर्ण भूमिका को समझाया गया है। यह तंत्र शरीर से अतिरिक्त पानी, प्रोटीन और मलबे को हटाने का काम करता है। लाखों छोटी वाहिकाएं शरीर में मौजूद द्रव को इकट्ठा करती हैं और इसे...

This video explores five fun facts about lymphatic system.

The human body lymphatic system song will teach anatomy of the lymphatic system.

This video is answering the question of what job does the lymphatic system do.

This video is answering the question of what is the lymphatic system.

This video is answering the question of how does the lymphatic system help the immune system.

This video is answering the question of how many lymph nodes are in the body.

This video is answering the question of how does the lymphatic system help the immune system.

“Circulatory System” identifies the parts and purposes of the circulatory system.