MLA Format: References. 1  The references page is placed at the end of your paper. 2  It should start with a new page, have a centered Works Cited title. 3  Double space all citations.  Create a hanging indent, to do so, indent second and subsequent lines of citations by 0.5 inches.
Primary brain tumors are much less common than are secondary brain tumors, in which cancer begins elsewhere and spreads to the brain. Many different types of primary brain tumors exist. Each gets its name from the type of cells involved. Examples include: 1  Gliomas.2  These tumors begin in the brain or spinal cord and include astrocytomas, ependymoma, glioblastomas, oligoastrocytomas and oligodendrogliomas. 3  Meningiomas.any different types of primary brain tumors exist. Each gets its name from the type of cells involved. Examples include: 1  Gliomas. 2  These tumors begin in the brain or spinal cord and include astrocytomas, ependymoma, glioblastomas, oligoastrocytomas and oligodendrogliomas. 3  Meningiomas.
The most common types of adult brain tumors are gliomas and astrocytic tumors. These tumors form from astrocytes and other types of glial cells, which are cells that help keep nerves healthy. The second most common type of adult brain tumors are meningeal tumors.These form in the meninges, the thin layer of tissue that covers the brain and spinal cord.hese tumors form from astrocytes and other types of glial cells, which are cells that help keep nerves healthy. The second most common type of adult brain tumors are meningeal tumors. These form in the meninges, the thin layer of tissue that covers the brain and spinal cord.