Pachymeninx
Pachymeninx
Pachymeninx (pronunciation: pak-i-men-inks) is a term used in neuroanatomy to refer to the outermost layer of the meninges, the protective membranes that cover the brain and spinal cord. The term is derived from the Greek words 'pachys' meaning 'thick' and 'meninx' meaning 'membrane'.
Etymology
The term 'Pachymeninx' is derived from the Greek words 'pachys' (thick) and 'meninx' (membrane). It is used to describe the thick, outermost layer of the meninges, which is also known as the dura mater.
Related Terms
- Meninges: The three-layered protective membranes that cover the brain and spinal cord. The meninges consist of the dura mater (pachymeninx), the arachnoid mater, and the pia mater.
- Dura Mater: The thick, durable outermost layer of the meninges, also known as the pachymeninx. It is primarily responsible for protecting the brain and spinal cord from physical impact.
- Arachnoid Mater: The middle layer of the meninges, located between the dura mater and the pia mater. It is named for its spider web-like appearance.
- Pia Mater: The innermost layer of the meninges, which closely follows the contours of the brain and spinal cord. It provides nutrients to the nervous tissue and helps to produce cerebrospinal fluid.
- Cerebrospinal Fluid: A clear, colorless fluid found in the brain and spinal cord. It is produced by the pia mater and serves to cushion the brain and spinal cord, provide nutrients, and remove waste products.
- Neuroanatomy: The study of the structure and organization of the nervous system.
External links
- Medical encyclopedia article on Pachymeninx
- Wikipedia's article - Pachymeninx
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