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vasomotion

vasomotion

9.9
A rhythmic tightening and relaxing of small blood vessels that helps blood flow
  • noun
  • /ˌveɪzoʊˈmoʊʃən/
  • Specialized
: vasomoción
  • During the experiment, researchers monitored vasomotion to understand how blood flow is regulated under different conditions.
  • vasomotion is generally associated

Examples

  • In addition, we found indirect evidence that vasomotion was significantly affected by changes in temperature.

    Academic text (1999)
  • Evidence of vasomotion, as reflected by oscillations in perfusion, was also observed in the present study.

    Academic text (1999)
  • In rats, vasomotion is generally associated with power in the lowest frequency range (10).

    Academic text (1999)
  • A similar temperature-mediated effect of increasing vasomotion frequency and amplitude was reported in man (25, 26) and in the bat (27).

    Academic text (1999)
  • No increase in perfusion (Table 1) or vasomotion (Table 2, low frequency content) with heating was seen at 73 mmHg.

    Academic text (1999)
  • Vasomotion, as manifested by oscillations in skin perfusion, has been described by others (23, 24).

    Academic text (1999)
  • The responses presented in Figure 3 between 28 and 30 Celsius do not show the suggested correlation between increasing P m and increasing spectral power in the low frequency range (an indicator of vasomotion).

    Academic text (1999)
  • Increased temperature caused a threefold increase in spectral power of control perfusion, with the majority of change occurring in the low range (<1.0 Hz), the range in rats thought to be associated with vasomotion (10).

    Academic text (1999)
  • Increased temperature also caused low-frequency oscillations of arterioles to increase, suggesting possible increased vasomotion and decreased vascular resistance. Increased temperature caused skin to become stiffer in response to increased surface pressure.

    Academic text (1999)
  • Power in the low frequency (<1.0 Hz) range of perfusion in rats has been thought to be associated with vasomotion (10), while power between 1 and 3.5 Hz has been associated with respiration-induced changes, and that between 3.5 and 5 Hz with the cardiac cycle.

    Academic text (1999)

Surface Forms

vasomotion singular
vasomotions plural

Morphology

vasomotion = motion (semi-transparent) = vaso + motion

The element 'motion' is a clear English word, but 'vaso-' is a technical combining form (not a standalone common word), so the term is partly guessable for learners familiar with medical terms but not fully transparent to average learners.

Etymology

The word vasomotion comes from vaso- (from Latin vas, 'vessel') and -motion ('movement'). So it literally means 'movement of vessels', which helps you remember the rhythmic opening and closing of blood vessel walls that controls blood flow.