basal

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Related to basal tone: vascular tone

basal

[′bā·səl]
(biology)
Of, pertaining to, or located at the base.
(physiology)
Being the minimal level for, or essential for maintenance of, vital activities of an organism, such as basal metabolism.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
For example, some preparations relaxed rapidly and then partially restored basal tone prior to washing [ILLUSTRATION FOR FIGURE 4B OMITTED] and others responded with a slow but sustained relaxation that was only reversed on washing [ILLUSTRATION FOR FIGURE 4C OMITTED].
In contrast, arsenite alone did not induce the MLC phosphorylation significantly (Figure 4A), consistent with the fact that basal tones of blood vessels were not changed by arsenite treatment alone.