primary action


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action, primary 

Term referring to the greatest effect of an extraocular muscle in one plane. The other actions are called the subsidiary or secondary and tertiary actions. The primary action of the inferior rectus is depression; of the superior rectus, elevation; of the inferior oblique, extorsion; and of the superior oblique, intorsion. The medial and lateral recti muscles exert their primary action in the primary position, that is, pure adduction for the medial rectus and pure abduction for the lateral rectus. See forced duction test; red glass test.
References in periodicals archive ?
1): Their primary actions are hip extensions and abduction--taking the leg away from the mid-line of the body.
GliaCure's lead product candidate, GC021109, is a small molecule that in preclinical studies has demonstrated two primary actions downstream of target engagement: the stimulation of phagocytosis and anti-inflammatory actions in which levels of pro-inflammatory cytokines are reduced.
We have said that one of our primary actions to improve liquidity is to divest nonstrategic assets.
The three primary actions account for the bulk of the benefits in terms of reducing petroleum use and cutting global warming emissions.
GliaCure's lead product candidate, GC021109, is a small molecule that has two primary actions downstream of target engagement: the stimulation of phagocytosis and anti-inflammatory actions in which levels of pro-inflammatory cytokines are reduced.
The report recommends three primary actions that state government must take to save California's manufacturing sector from further erosion:
In a Market Insight report from October 2010, Gartner analyst Jim Browning states, "One of the primary actions planned through the first half of 2011 by a number of midsize businesses is to implement new or expanded geographically dispersed backup sites for disaster recovery purposes.
The Company has initiated certain primary actions intended to achieve turnaround, which include: -0- -- Where possible, working with hospitals to convert them to a flat rate fee arrangement, which require less of an up-front cash investment, rather than cancel the contract.
To address CHG's concerns that led to the suspension of the DRS authorization, Las Cruces has developed a plan that contains two proposed primary actions.