Meningiomas are named according to their location (Fig 1) and cause various symptoms: 1  Convexity meningiomas: grow on the surface of the brain. They may not produce symptoms until they reach a large size. 2  Falx and parasagittal meningiomas: grow from the dura fold that runs between the left and right sides of the brain.
Tectum | Tegmentum | See also. The midbrain, or mesencephalon is made up of two main structures and surrounds the cerebral aqueduct.he midbrain, or mesencephalon is made up of two main structures and surrounds the cerebral aqueduct.
The punctum is a 'detail', which punctuates the studium and disturbs it. Barthes writes, 'It is this element which rises front the scene, shoots out of it like an arrow, and pierces me. (Roland Barthes, Camera Lucida, pp. 27) The punctum is grounded by the experience of the viewer.