How Do You Spell DURAL SHEATH?

Pronunciation: [djˈʊ͡əɹə͡l ʃˈiːθ] (IPA)

The word "dural sheath" is often used in medical terminology to refer to the protective layer that surrounds the spinal cord and brain. This word is pronounced as /ˈdʊərəl ʃiːθ/ in the International Phonetic Alphabet (IPA). The term "dural" is spelled with a "d" at the beginning, followed by a "u" that is pronounced as the "oo" sound in "book." The word "sheath" is pronounced with a long "e" sound in the middle and an "a" pronounced as in "bat" at the end.

DURAL SHEATH Meaning and Definition

1. The dural sheath, which is also referred to as the dura mater or simply the dura, is a protective membrane that covers the brain and spinal cord. It is one of the three layers of the meninges, along with the arachnoid mater and the pia mater, that provide support and protection to the central nervous system.

   The dural sheath consists of two distinct layers: the outer periosteal layer and the inner meningeal layer. The periosteal layer is attached to the inner surface of the skull and acts as a tough, fibrous barrier. It helps to stabilize the brain and protects it from external forces and trauma. The meningeal layer, which is located just beneath the periosteal layer, is tightly adhered to it and forms the major portion of the dural sheath.

   The dural sheath plays a crucial role in the circulation of cerebrospinal fluid (CSF) and provides a pathway for blood vessels that supply the brain and spinal cord. It also contains a network of blood vessels called dural sinuses, which drain the venous blood from the brain. Additionally, the dural sheath separates the brain into compartments, helping to prevent displacement of brain structures and minimizing the risk of injury.

2. The sheath of the optic nerve, an extension of the dura mater.

   A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

Common Misspellings for DURAL SHEATH

• sural sheath
• xural sheath
• cural sheath
• fural sheath
• rural sheath
• eural sheath
• dyral sheath
• dhral sheath
• djral sheath
• diral sheath
• d8ral sheath
• d7ral sheath
• dueal sheath
• dudal sheath
• dufal sheath
• dutal sheath
• du5al sheath
• du4al sheath
• durzl sheath
• dursl sheath

Etymology of DURAL SHEATH

The word "dural sheath" is primarily used in medical contexts to refer to the outer covering or protective layer around the spinal cord and brain, known as the dura mater.

The term "dura mater" originates from Latin and translates to "hard mother". It was named so because compared to the other layers of the meninges (the protective membranes around the brain and spinal cord), the dura mater is relatively tough and durable.

The word "sheath" comes from Old English "sceath", meaning a covering or casing. In the context of the central nervous system, "dural sheath" is used to describe the protective casing formed by the dura mater.