- Learn how the needs of the fetus are met by the placenta, which is a special organ that belongs to both the mother and the fetus!

- A clear illustration of immunodeficiency disorders.

- A three-part animation depicting the development and function of the human placenta.

- Here is a mnemonic for remember the important features of the Pharyngeal Arches!

- I created this video with the YouTube Video Editor (http://www.youtube.com/editor)

- I created this video with the YouTube Video Editor (http://www.youtube.com/editor)

- Simple tutorial on Pharyngeal Arches.