white matter

Examples of white matter in the following topics:

• Grey and White Matter

  • The basic pattern of the CNS is a central cavity surrounded by gray matter external to which is the white matter.
  • White matter only contains the myelinated axon tracts,  and not the cell bodies.  
  • Myelin also gives white matter its characteristic color.
  • This MRI highlights the location of white matter in the brain.
  • Distinguish between grey and white matter of the central nervous system

• Spinal Cord White Matter

  • The white matter of the spinal cord is composed of bundles of myelinated axons.
  • White matter is one of the two components of the central nervous system.
  • White matter in non-elderly adults is 1.7-3.6% blood.
  • The white matter is white because of the fatty substance (myelin) that surrounds the nerve fibers (axons).
  • The spinal cord diagram showing location of the white matter surrounding grey matter.

• White Matter of the Cerebrum

  • White matter is composed of myelinated axons and glia and connects distinct areas of the cortex.
  • White matter is one of the two components of the central nervous system (CNS).
  • In a freshly cut brain, the tissue of white matter appears pinkish white to the naked eye because myelin is composed largely of lipid tissue containing capillaries.
  • White matter appears white in this dissected human brain, while gray matter appears darker.
  • White matter is composed largely of myelinated axons.

• Cerebral Cortex

  • The cerebrum is composed of gray and white matter.
  • Gray matter is the mass of all the cell bodies, dendrites, and synapses of neurons interlaced with one another, while white matter consists of the long, myelin-coated axons of those neurons connecting masses of gray matter to each other.
  • A sagittal cross-section of a human brain showing the distinct layers of grey matter (the darker outer layer) and white matter (the lighter inner layer) in the cerebrum.

• Subdivisions of the Nervous System

  • The nervous system is often divided into components called gray matter and white matter.
  • Gray matter, which is gray in preserved tissue but pink or light brown in living tissue, contains a relatively high proportion of neuron cell bodies.
  • Conversely, white matter is composed mainly of axons and is named because of the color of the fatty insulation called myelin that coats many axons.
  • White matter includes all of the nerves of the PNS and much of the interior of the brain and spinal cord.
  • Gray matter is found in clusters of neurons in the brain and spinal cord and in cortical layers that line their surfaces.

• Spinal Cord

  • A cross-section of the spinal cord looks like a white oval containing a gray butterfly-shape .
  • Myelinated axons (the part of neurons that send signals) compose the "white matter," while neuron and glial cell bodies (neuronal "support" cells) compose the "grey matter."
  • Grey matter is also composed of interneurons, which connect two neurons, each located in different parts of the body.
  • A cross-section of the spinal cord shows grey matter (containing cell bodies and interneurons) and white matter (containing axons).

• Voting in the Colonies

  • Free white males in the British colonies in North America were expected to vote and participate in political matters.
  • Public colonial elections were events in which all free white males were expected to participate in order to demonstrate proper civic pride.
  • Public office attracted many talented young men of ambition to civil service, and colonial North American suffrage was the most widespread in the world at that time; every free white man who owned a certain amount of property was allowed to vote.
  • The widespread availability of property in the 13 colonies afforded most white males the chance to own some amount of property.
  • Therefore, while fewer than 1% of British men could vote, a majority of white American men were eligible to vote and run for office.

• The Executive Office of the President

  • Such prime ministers exist in some governmental systems: The prime minister runs the government, while the president remains somewhat aloof from the political process, but personally handling policy matters.
  • Such prime ministers exist in some governmental systems: The prime minister runs the government, while the president remains somewhat aloof from the political process, but personally handling policy matters.
  • Rove left the White House officially on August 31, 2007.
  • The current White House Counsel is W.
  • It is clear, however, that the privilege does not apply in personal matters, such as impeachment proceedings; in such situations the President relies on a personal attorney for confidential legal advice.

• Physical and Chemical Changes to Matter

  • There are two types of change in matter: physical change and chemical change.
  • There are two types of change in matter: physical change and chemical change.
  • The heat from cooking an egg changes the interactions and shapes of the proteins in the egg white, thereby changing its molecular structure and converting the egg white from translucent to opaque.

• Ceramics in the Greek Early Classical Period

  • The "Mannerists" were a group of Attic red-figure painters known for their affected (emotive) subject matter.
  • The Achilles Painter, a pupil of the Berlin Painter and creator of both red-figure and white-ground vessels, is one of the most well-known white ground painters.
  • Attic white ground lekythos. c. 440-430 BCE.
  • Attic white-ground black-figure lekythos.
  • Attic white ground lekythos. c. 440-430 BCE.