Magnum foramen.
The meninges are three layers of protective tissue called the dura mater, arachnoid mater, and pia mater that surround the neuraxis. The meninges of the brain and spinal cord are continuous, being linked through the magnum foramen. Dura Mater The dura mater is the most superior of the meningeal layers. There are three layers of meninges around the brain and spinal cord. The outer layer, the dura mater, is tough, white fibrous connective tissue. The middle layer of meninges is arachnoid, a thin layer resembling a cobweb with numerous threadlike strands attaching it to the innermost layer. Meninges. There are three layers of meninges around the brain and spinal cord. The outer layer, the dura mater, is tough, white fibrous connective tissue. The middle layer of meninges is arachnoid, a thin layer resembling a cobweb with numerous threadlike strands attaching it to the innermost layer. The dura mater is the most superficial layer of the meninges and contains folds and sinuses. The dura mater contacts the endosteum that lines bones of the cranial cavity. The dura mater is a strong fibrous membrane that surrounds the brain and is continuous with the dura that covers the spinal cord. This image depicts the cranial meninges which covers the brain. The dura mater, the outer layer, is a tough, fibrous covering that adheres to the bones of the skull. The middle layer is a delicate web of tissue called the arachnoid mater. The pia mater, the inner most layer, lies closely over the brain and spinal cord. The meninges refer to the membranous coverings of the brain and spinal cord. There are three layers of meninges, known as the dura mater, arachnoid mater and pia mater. © 2015 TeachMeAnatomy.com [CC-BY-NC-ND 4.0]. Fig 1.0 – Overview of the meninges, and their relationship to the skull and brain. the innermost of the three meninges covering the brain and the spinal cord. It is closely applied to both structures and carries a rich supply of blood vessels, which nourish the nervous tissue. The cranial pia mater covers the surface of the brain and dips into the fissures and sulci of the cerebral hemispheres.
http://www.csuchico.edu/~pmccaffrey/syllabi/CMSD%20320/362unit3.html http://www.training.seer.cancer.gov/brain/tumors/anatomy/meninges.html http://www.training.seer.cancer.gov/brain/tumors/anatomy/meninges.html http://www.dummies.com/how-to/content/anatomy-of-the-brain-the-meninges.html http://discovery.lifemapsc.com/library/images/cranial-meninges-structure http://teachmeanatomy.info/neuro/structures/meninges/ http://medical-dictionary.thefreedictionary.com/pia+mater
the delicate layer of the meninges closely applied to the brain is