Interactive Biology, by Leslie Samuel

In this Episode, I give an Introduction to neurons. First I answer the question “What is a neuron?”. Then I go into the parts of a neuron. Lastly, I talk about the three types of neurons. Enjoy!

This is the first in my series of BioVid Episodes: Video Tutorials to help with Biology. In the first section of my BioVid Tutorials, I will be dealing with The Nervous System. To start it all off, in this BioVid Episode, I give an introduction to the Nervous System. First, I answer the question “What is The Nervous System?”. Then I a talk about the two divisions of the Nervous System:

First off, lets talk about what respiration is. In order for you to live, your body needs oxygen. Cells use this oxygen in order for metabolism to take place and without it, you would have no energy. When you eat, that food is broken down and the process of respiration allows for you to convert that food into an energy form that can be used by your body.

The functions of neurons depend on the movement of ions across the membrane. This happens both passively and actively across the membrane of a neuron. Lets talk about the passive process first. There are 2 factors that control the passive movement of ions across the membrane. Those 2 factors are diffusion and charge.

The human heart is a magnificent organ. The adult heart pumps about 1,500 to 2,000 gallons per day. I’m not going to get into a lot of details about the heart in the post right now because I’m gonna get more into it later. I just wanted to post a few 3D pictures of the human heart, because I think they are amazing. They were done by Patrick J. Lynch, medical illustrator for Yale University.