Commissure meaning

A commissure is a connection or junction where two structures meet or cross over.


Commissure definitions

Word backwards erussimmoc
Part of speech Noun
Syllabic division com-mis-sure
Plural The plural form of the word "commissure" is "commissures."
Total letters 10
Vogais (4) o,i,u,e
Consonants (4) c,m,s,r

What is a Commissure?

A commissure is a connective band of nerve fibers that cross the midline of the brain or spinal cord, allowing communication between the two hemispheres. The most well-known and largest commissure in the human brain is the corpus callosum, which connects the left and right cerebral hemispheres. Other commissures include the anterior commissure, posterior commissure, and habenular commissure.

Function of Commissures

Commissures play a crucial role in coordinating the functions of both hemispheres of the brain. They allow for the transfer of information between different parts of the brain, enabling tasks such as motor coordination, sensory processing, and cognitive functions to be carried out efficiently. Without the presence of commissures, communication between the two hemispheres would be significantly impaired.

Types of Commissures

There are several types of commissures in the human brain, each serving a specific function. The corpus callosum is the largest and most well-known commissure, responsible for coordinating communication between the left and right cerebral hemispheres. The anterior commissure connects various parts of the temporal lobes, while the posterior commissure is involved in regulating the pupils' size and focusing the eyes. The habenular commissure links the habenular nuclei, which play a role in regulating emotional and cognitive behaviors.

Importance of Commissures

The presence of commissures is essential for the proper functioning of the brain. They facilitate communication between different regions of the brain, allowing for complex processes to occur seamlessly. Disorders affecting commissures, such as agenesis of the corpus callosum, can lead to a range of cognitive and neurological deficits. Understanding the role of commissures in the brain is crucial for advancing our knowledge of brain function and addressing neurological conditions effectively.


Commissure Examples

  1. The commissure of the lips created a perfect cupid's bow.
  2. The doctor identified a commissure tear in the patient's knee.
  3. The commissure of the railway tracks allowed trains to switch between different lines.
  4. The commissure of the insect's wings helped it fly effortlessly.
  5. The commissure of the bridge provided a safe passage for pedestrians over the river.
  6. The commissure between the two rooms allowed for easy communication between the team members.
  7. The commissure of the bookshelf was carefully designed to ensure stability.
  8. The commissure of the musical instruments created a harmonious sound when played together.
  9. The commissure of the plant's leaves helped regulate transpiration.
  10. The commissure of the brain connected the left and right hemispheres.


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  • Updated 17/06/2024 - 21:51:06