- Edited
kouliga Please as i show in this picture, it seems that an head block exists:
It is php file and isn't block which contains inherited code for meta names, external css file, external js file references. For the exact folder structure for the powerful T3 Framework which powers JA University, You may refer to this documentation
To know exactly as to what blocks and module positions are, Kindly refer to this documentation
Each block has a number of module position assigned to, you can define the assigned module positions for the block
Hope this helps