Artishia Gilbert: Difference between revisions

Revision as of 18:46, 11 February 2025

Arachnoid Mater

The arachnoid mater is one of the three meninges, the protective membranes that cover the central nervous system (CNS), which includes the brain and spinal cord. It is situated between the outermost layer, the dura mater, and the innermost layer, the pia mater. The arachnoid mater is named for its spider web-like appearance, which is due to the delicate, fibrous tissue that composes it.

Structure

The arachnoid mater is a thin, transparent membrane that loosely envelops the brain and spinal cord. It is composed of layers of connective tissue and is avascular, meaning it lacks blood vessels. The space between the arachnoid mater and the pia mater is known as the subarachnoid space, which is filled with cerebrospinal fluid (CSF). This fluid acts as a cushion, providing a protective buffer for the CNS.

The arachnoid mater is connected to the pia mater by fine, thread-like structures called arachnoid trabeculae. These trabeculae help maintain the subarachnoid space and allow for the circulation of CSF.

Function

The primary function of the arachnoid mater is to protect the brain and spinal cord by acting as a barrier and a cushion. It helps to maintain the blood-brain barrier and plays a role in the circulation of cerebrospinal fluid. The arachnoid mater also serves as a conduit for blood vessels and nerves that supply the CNS.

Clinical Significance

The arachnoid mater can be involved in various medical conditions. One such condition is arachnoid cysts, which are fluid-filled sacs that can form on the arachnoid membrane. These cysts can cause symptoms by compressing adjacent neural structures.

Another condition is subarachnoid hemorrhage, which occurs when there is bleeding into the subarachnoid space. This can be a life-threatening condition that requires immediate medical attention.

Development

During embryonic development, the meninges form from the mesoderm and ectoderm layers. The arachnoid mater, along with the pia mater, originates from the neural crest cells. As the CNS develops, the arachnoid mater differentiates and forms the characteristic web-like structure that defines it.

Related Pages

Gallery

3D Medical Illustration of Meninges
Meningeal Layers
Diagram of Meninges
Gray's Anatomy Illustration
Brain with Arachnoid and Pia Mater
Spinal Dura Mater
Gray's Anatomy of Spinal Cord

@@ Line 1: / Line 1: @@
+== Arachnoid Mater ==
-= Artishia Gilbert: A Pioneering Medical Professional =
+The '''arachnoid mater''' is one of the three meninges, the protective membranes that cover the [[central nervous system]] (CNS), which includes the [[brain]] and [[spinal cord]]. It is situated between the outermost layer, the [[dura mater]], and the innermost layer, the [[pia mater]]. The arachnoid mater is named for its spider web-like appearance, which is due to the delicate, fibrous tissue that composes it.
-Artishia Gilbert is a renowned figure in the field of [[medicine]], known for her groundbreaking research and contributions to [[public health]]. With a career spanning over two decades, Gilbert has played a pivotal role in advancing medical knowledge and improving patient care.
+=== Structure ===
-== Early Life and Education ==
+The arachnoid mater is a thin, transparent membrane that loosely envelops the brain and spinal cord. It is composed of layers of connective tissue and is avascular, meaning it lacks blood vessels. The space between the arachnoid mater and the pia mater is known as the [[subarachnoid space]], which is filled with [[cerebrospinal fluid]] (CSF). This fluid acts as a cushion, providing a protective buffer for the CNS.
-Artishia Gilbert was born on January 1, 1970, in [[New York City]], [[United States]]. From a young age, she showed a keen interest in the sciences, particularly in biology and chemistry. Gilbert pursued her undergraduate degree in [[Biology]] at the prestigious [[Harvard University]], where she graduated summa cum laude. She then went on to earn her MD from the [[Johns Hopkins School of Medicine]], one of the leading medical schools in the world.
-== Career and Contributions ==
+The arachnoid mater is connected to the pia mater by fine, thread-like structures called arachnoid trabeculae. These trabeculae help maintain the subarachnoid space and allow for the circulation of CSF.
-After completing her residency in [[internal medicine]], Gilbert began her career as a medical researcher, focusing on infectious diseases. Her work has led to significant advancements in the understanding and treatment of [[HIV/AIDS]], making her a leading expert in the field.
-In addition to her research, Gilbert has been an advocate for [[public health policy]], working to improve healthcare access and quality for underserved populations. She has published numerous articles in peer-reviewed journals and has been invited to speak at international conferences on topics related to infectious diseases and public health.
+=== Function ===
-== Awards and Recognition ==
+The primary function of the arachnoid mater is to protect the brain and spinal cord by acting as a barrier and a cushion. It helps to maintain the [[blood-brain barrier]] and plays a role in the circulation of cerebrospinal fluid. The arachnoid mater also serves as a conduit for blood vessels and nerves that supply the CNS.
-Throughout her career, Gilbert has received several awards and honors in recognition of her contributions to medicine and public health. These include the [[Nobel Prize in Physiology or Medicine]] for her research on HIV/AIDS and the [[Presidential Medal of Freedom]] for her efforts in improving healthcare access.
-== Personal Life ==
+=== Clinical Significance ===
-Artishia Gilbert is married and has two children. She is also an active member of her community, volunteering her time and expertise to local health initiatives.
-== See Also ==
+The arachnoid mater can be involved in various medical conditions. One such condition is [[arachnoid cysts]], which are fluid-filled sacs that can form on the arachnoid membrane. These cysts can cause symptoms by compressing adjacent neural structures.
-* [[Infectious disease]]
-* [[Public health]]
-* [[HIV/AIDS]]
-[[Category:Medical Professionals]]
+Another condition is [[subarachnoid hemorrhage]], which occurs when there is bleeding into the subarachnoid space. This can be a life-threatening condition that requires immediate medical attention.
-[[Category:Public Health Advocates]]
-{{medicine-stub}}
+=== Development ===
+During embryonic development, the meninges form from the mesoderm and ectoderm layers. The arachnoid mater, along with the pia mater, originates from the neural crest cells. As the CNS develops, the arachnoid mater differentiates and forms the characteristic web-like structure that defines it.
+== Related Pages ==
+* [[Dura mater]]
+* [[Pia mater]]
+* [[Meninges]]
+* [[Cerebrospinal fluid]]
+== Gallery ==
+<gallery>
+File:3D_Medical_Illustration_Meninges_Details.jpg|3D Medical Illustration of Meninges
+File:1316_Meningeal_LayersN.jpg|Meningeal Layers
+File:Meninges-en.svg|Diagram of Meninges
+File:Gray1196.png|Gray's Anatomy Illustration
+File:Brain_with_arachnoid_and_pia_mater.jpg|Brain with Arachnoid and Pia Mater
+File:Spinal_dura_mater_1.jpg|Spinal Dura Mater
+File:Gray767.png|Gray's Anatomy of Spinal Cord
+</gallery>
+[[Category:Anatomy of the central nervous system]]