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Glite Dictionary
commissural

commissural

1 9.9
About a band of nerve fibers that connects the left and right sides of the brain or heart
  • adjective
  • /kəˈmɪʃərəl/
  • Specialized
: comisural
  • The commissures, in contrast to the semi-lunar valves, do not extend completely to the annulus and are supported by commissural chordae.

Examples

  • During surgery, the doctor carefully examined the commissural tissue to ensure proper function.

  • Also, the PCRF is traversed by an extensive system of commissural fibers that interconnect the vestibular nuclear complexes.

    Academic text (2005)

  • It has been suggested that fine axon collaterals may arise from these commissural fibers to connect the PCRF to the vestibular nuclei.

    Academic text (2005)

  • The commissural fibers connect the left and right sides of the brain to coordinate movement.

  • Researchers studied the role of commissural pathways in transmitting information between the brain's hemispheres.

Surface Forms

commissural positive

Morphology

commissural = commissure (transparent) = commissure + al

The adjective is formed regularly from the noun 'commissure' plus '-al', meaning 'relating to'.

Etymology

Commissural comes from the Latin word commissure, built with com- meaning 'together' and a root meaning 'join', so it literally means 'joining together'. That's why commissural is used for the bands of tissue or nerve fibres that 'connect' the left and right sides of the brain or heart.