I searched first for "Lung volumes" and then chose the text "Human Lung" above. If you click on View in Credo above, you can interact with this map and choose other topics in the map such as Human Lung. Credo Reference is located in the A-Z list. Just place a topic into the Credo Reference search box and results will appear including a mind map.
If you want to use an online tool to help with mind mapping, here are some options. Many others are available if you search on the web: