M-line meaning

The M-line refers to the central line within the M-band of the sarcomere in muscle cells that anchors myosin filaments.


M-line definitions

Word backwards enil-M
Part of speech The word "M-line" is a noun.
Syllabic division M-line is separated as M-line.
Plural The plural of the word M-line is M-lines.
Total letters 5
Vogais (2) i,e
Consonants (3) m,l,n

M-Line Overview

The M-line, also known as the Marginal Line, is a term used in anatomy to describe a specific group of muscle fibers found within a muscle. These muscle fibers are often located at the border or edge of a muscle and play a crucial role in providing structural support and stability.

Function of M-Line

The M-line is essential for maintaining the integrity and alignment of muscle fibers during contraction and relaxation. It acts as a reference point for the arrangement of myosin filaments, helping to ensure that muscle contractions are efficient and coordinated.

Structure of M-Line

The M-line is composed of various structural proteins, including myomesin and M-protein, that help to anchor myosin filaments in place. These proteins play a vital role in the organization and alignment of muscle fibers, allowing for smooth and controlled movements.

Significance of M-Line

The M-line is critical for muscle function, as it helps to regulate the length and tension of muscle fibers. By providing structural support and stability, the M-line enables muscles to generate force effectively, allowing for proper movement and function throughout the body.

In conclusion, the M-line is a key component of muscle anatomy, playing a crucial role in maintaining muscle structure and function. By understanding the significance of the M-line, researchers and healthcare professionals can gain valuable insights into the mechanisms underlying muscle contraction and movement.


M-line Examples

  1. The subway system in New York City includes an M-line that runs from Queens to Manhattan.
  2. When designing a new building, architects may use an M-line to denote the main axis of the structure.
  3. In a chemistry lab, scientists may refer to an M-line on a spectrograph to identify a specific molecular bond.
  4. Graphic designers often use an M-line to ensure that elements are properly aligned on a webpage.
  5. When discussing genetics, researchers might examine an M-line on a karyotype to identify chromosomal abnormalities.
  6. Astronomers may track an M-line to predict the path of a meteor shower across the night sky.
  7. Art historians can use an M-line to identify the focal point of a painting or sculpture.
  8. In music theory, an M-line can represent the melody that serves as the main theme of a composition.
  9. During a photography shoot, photographers often use an M-line to ensure proper composition and framing.
  10. When analyzing data in a spreadsheet, an M-line can help highlight a specific trend or pattern.


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  • Updated 18/06/2024 - 04:59:22