Contents of the mediastinum seen from the lateral views.

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,...

Major arteries of the head and neck.

Structures of the medulla oblongata at the hypoglossal nerve level (21 structures).

Now that we know more about the structure of bones, we are ready to see how they all come together to form the skeletal system. An adult has 206 bones. What are they? How are they organized? What do they do? Let's go through all of these...