S2

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S2

Symbol for second heart sound.

S2

the second heart sound in the cardiac cycle. It is associated with closure of the aortic and pulmonic valves at the outset of ventricular diastole. The second sound is louder and shorter than the first. The sound of the aortic valve is loudest on the right sternal border, and that of the pulmonic valve is most distinct on the left sternal border over the second intercostal space.

S2

Cardiology The 2nd heart sound, which corresponds to the closure of semilunar–pulmonary and aortic valves, which is a short, higher pitched “dubb”.

S2

Abbreviation for second heart sound.
References in periodicals archive ?
This expertise can come from both prior planning between the S-2 and S-6, but also through establishing a good relationship with the S-6.
If the BCT S-2 and MICO are not training, talking, and operating together on a daily basis the concept of integration is inherently flawed from its inception.
On the path to DCGS-A mastery, there are several important factors involving the same crucial elements previously discussed--personnel, systems hardware, and systems software--the S-2 should consider.
The ParaCamera S-2 Surveillance System employs a unique, patent pending, optical system (using a curved mirror) to capture a round "donut shaped" 360 degrees view of the room.
Serving in a BCT S-2 section is one of the most demanding and challenging jobs MI professionals will face during their careers.
S-2 will organize N corporation in R for the sole purpose of participating in the proposed transaction.
Beratio is now under the custody of S-2 Office in this camp.
When properly established, COISTs and BISTs are a tremendous boon to BSB and CSSB S-2 sections, providing insight into intelligence needs, intelligence requirements, and vehicle capabilities and expanding the ability of attached companies to collect information.
This article describes the effects of this phenomenon on one engineer unit from the perspective of its intelligence (S-2) section, with a focus on how engineer battalions can better prepare deploying personnel who will be working with S-2 sections.
AGY, Aiken, South Carolina, USA, has reported that its S-2 Glass[R] fibers have been chosen as a key base material for providing both structural and ballistic protection in the new Ocelot Light Protected Patrol Vehicle (LPPV) developed by Force Protection Europe Ltd.
In March 2008 OMV said it was to drill 40 new oil wells by 2010 in Block S-2 in the Armah district of Shabwa and aimed to increase its production to more than 32,000 b/d eventually.