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pulse

pulse (puls)

Rhythmical dilation of an artery, produced by the increased volume of blood thrown into the vessel by the contraction of the heart. A p. may also at times occur in a vein or a vascular organ, such as the liver.pulsus; [L. pulsus]
abdominal p. the soft, compressible aortic p. occurring in certain abdominal disorders.pulsus abdominalis;
alternating p. mechanical alternation, a pulse regular in time but with alternate beats stronger and weaker, often detectable only with the sphygmomanometer and usually indicating serious myocardial disease.pulsus alternans;
anacrotic p. , anadicrotic p. a p. wave showing one or more notches or indentations on its rising limb that are sometimes detectable by palpation.pulsus anadicrotus;
bigeminal p. a p. in which the beats occur in pairs.bigemina, coupled p., pulsus bigeminus;
bisferious p. (bis-fer´e-us) an arterial p. with peaks that may be palpable.pulsus bisferiens;
bulbar p. a jugular p. supposed to indicate tricuspid insufficiency.
cannonball p. water-hammer p
capillary p. the alternate rhythmical blanching and reddening of a capillary area, as seen under the nails or in the lip, upon gentle compression; a sign of arteriolar dilation, well seen in aortic insufficiency.
carotid p. the p. of the carotid arteries in the neck.
catacrotic p. a p. in which there is an upward notch interrupting the descending limb of the sphygmogram.pulsus catacrotus;
catadicrotic p. a catacrotic p. in which there are two interrupting upward notches.pulsus catadicrotus;
collapsing p. water-hammer p
cordy p. tense p
Corrigan's p. Corrigan's sign
coupled p. bigeminal p
dicrotic p. a p. which is marked by a double beat, the second, due to a palpable dicrotic wave, being weaker than the first.pulsus duplex;
entoptic p. an intermittent phose synchronous with the p.
filiform p. a thready p.
gaseous p. a soft, full, but feeble p.
guttural p. a pulsation felt in the throat.
hard p. a p. that strikes forcibly against the tip of the finger and is with difficulty compressed, suggesting hypertension.pulsus durus;
intermittent p. irregularity of the heart due to extrasystoles which are too weak to open the semilunar valves; often owing to the long pause following the premature beat, extra long pauses equal to two regular cycles occur from time to time between p. beats.pulsus intercidens;
irregular p. variation in rate of impulses in an artery due to cardiac arrhythmia.
jugular p. the venous p. as observed in the jugular veins of the neck, usually the deep jugular veins.
Kussmaul's p. reduction or disappearance of the p. during inspiration.
Kussmaul's paradoxical p. See paradoxical p.
labile p. frequent changes in p. rate.
long p. a p. in which the impact is felt longer than usual.
monocrotic p. a p. without any perceptible dicrotism.pulsus monocrotus;
mousetail p. pulsus myurus
movable p. the lateral movement of a strongly pulsating tortuous artery.
nail p. a capillary p. seen through the nail.
paradoxical p. an exaggeration of the normal variation in the p. volume with respiration, becoming weaker with inspiration and stronger with expiration; characteristic of cardiac tamponade, rare in constrictive pericarditis; so called because these changes are independent of changes in the cardiac rate as measured directly or by electrocardiogram.pulsus paradoxus, pulsus respiratione intermittens;
piston p. water-hammer p
plateau p. a slow, sustained p.
quadrigeminal p. a p. in which the beats are grouped in fours, a pause following every fourth beat.pulsus quadrigeminus;
Quincke's p. the capillary p. as appreciated in the finger and toenails during aortic regurgitation; ebb and flow is seen.Quincke's sign;
radial p. the p. as appreciated at the radial artery usually in the wrist.
radiofrequency p. in nuclear magnetic resonance, a short electromagnetic signal used to change the direction of the magnetic field. See sequence p.
respiratory p. waxing and waning of any pulsation produced by respiration.
reversed paradoxical p. a p. in which the amplitude increases with inspiration and decreases with expiration, as observed in some cases of tricuspid insufficiency and during A-V dissociation with sinus arrhythmia.
Riegel's p. a p. that diminishes in volume during expiration.
sequence p. in magnetic resonance imaging, the series of radiofrequency signals used to shift the magnetic field to change proton orientation.
soft p. a p. that is readily extinguished by pressure with the finger.
tense p. a hard, full p. but without very wide excursions, resembling the vibration of a thick cord.cordy p;
thready p. a small fine p., feeling like a small cord or thread under the finger.pulsus filiformis;
trigeminal p. a p. in which the beats occur in trios, a pause following every third beat.pulsus trigeminus;
triphammer p. water-hammer p
undulating p. a toneless p. in which there is a succession of waves without character or force.pulsus fluens;
unequal p. differing strength of p. in the same artery between the right and left of the circulation.
vagus p. a slow p. due to the inhibitory action of the vagus nerve on the heart.
venous p. a pulsation occurring in the veins, especially the internal jugular vein.pulsus venosus;
vermicular p. a small rapid p., giving a wormlike sensation to the finger.
water-hammer p. a p. with forcible impulse but immediate collapse, characteristic of aortic incompetency. See also Corrigan's sign.cannonball p., collapsing p., piston p., pulsus celerrimus, triphammer p;
wiry p. a small, fine, incompressible p.

 

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