SIEWER'S TEST 



1323 



SIGNS 



bundles of the inner bark of exogenous stems. They 

 are peculiar in the possession of circumscribed panels, 

 with tine perforations, which allow of communication 

 between contiguous cells. S.-disc. See S. -plate. S.- 

 hypha; a hypha in which sieve-plates occur. S.- 

 plates, the perforated panels of sieve-cells occur- 

 ring at the points of contact of sieve-cells. S. -pores, 

 the perforations in the panels of sieve-cells. S. -tis- 

 sue, a cellular tissue made up of thin-walled cells 

 which possess areas with sieve-like markings. The 

 tissue is characteristic of the phloem. S. -tubes. See 

 S.-cells. S. -vessel. See S.-cells. 



Siewer's Test. See Tests, Table of. 



Sig (sig). I. Abbreviation for signa, " label it," or 

 for " signetur, "let it be labeled." 2. A colloquial 

 name for urine. 



Sigault's Operation. See Operations, Table of. 



Sigh (si) [ME., sighen, to sigh]. A peculiar pro- 

 longed and deep respiration ; suspirium. 



Sighing (si'-ing) [ME. ,sighen, to sigh]. I. The act 

 of giving forth a sigh. 2. A deep respiration accom- 

 panied by sighs. 3. Characterized by sighs. 



Sight (sit) [ME., sight, sight]. That sense by which 

 the image of an object projected upon the retina is 

 conveyed to the mind. S., Day. See Hemeralopia. 

 S., Depraved. See Paropsis. S., Long. See Hy- 

 peropia. S., Mouse. See Myopia. S., Night. See 

 Nyctalopia. S., Old. See Presbyopia. S., Short. 

 See Myopia. S., Skew. See Dysopia. S., Weak. 

 See Asthenopia. 



Sigillate (sif-il-at) [sigillum, a seal]. In biology, 

 marked as if with a seal. 



Sigmatism, Sigmatismus (sig / -mat-izm, sig-mat-iz' '• 



mus) \sigma, the Greek letter s (<r)]. I. Defective 

 utterance of the sound of s. 2. Too frequent use of 

 the s sound in speech. See Lisping. 



Sigmoid [sig' -moid) [aiyfia, letter s; e'iSoc, likeness]. 

 Bearing a resemblance to the shape of the letter 

 sigma ; curved in two directions. S. Catheter, one 

 shaped like an S, for passing into the female bladder. 

 S. Cavities, a name applied to the depressions on 

 the head of the ulna ; the greater is a depression 

 formed by the olecranon and coronoid process for ar- 

 ticulation with the humerus ; the lesser, on the outer 

 side of the coronoid process, is for articulation with the 

 radius. S. Flexure, the bend in the colon between 

 the descending portion and the rectum. S. Gyrus, 

 the S-shaped cerebral fold about and behind the 

 cruciate fissure in Carnivora. S. Mesocolon, the 

 fold of the peritoneum attaching the sigmoid flexure 

 of the colon to the left iliac fossa. S. Notch. See 

 Notch. S. Valves, the cardiac semilunar valves. 



Sigmoiditis (sig-moi-di' '-lis) [oiy/ua, sigma ; eidoe, like ; 

 trie, inflammation]. Inflammation of the sigmoid 

 flexure of the colon. 



Sigmoidostomy ( sig-moi-dos' '-to-me) [ a'r/fia, sigma ; 

 arofjxi, mouth]. The creation of an artificial anus in 

 the sigmoid flexure of the colon. 



Sign (sin) \signum, a mark or device]. In pathology, 

 any diagnostic symptom. In pharmacy, a conven- 

 tional character implying a direction or order. A 

 table of Eponymic Signs and Symptoms is appended. 

 See Ataxia, Signs of; Death, Signs of, etc. S. -lan- 

 guage, the method of intercommunication employed 

 by deaf-mutes, in which ideas are communicated by 

 means of signs. 



TABLE OF EPONYMIC SIGNS AND SYMPTOMS OF DISEASES. 



Name. 



Description. 



How Elicited. 



Disease Present in. Significance 



! Abadie's sign. 



Spasm of the levator palpebrae 

 superioris muscle. 



Inspection. 



Exophthalmic goiter. 



Said to be pathogno- 

 monic (?). 



Allis's sign. 



Relaxation of the fascia be- j Inspection, 

 tween the crest of the ilium 

 and the trochanter major. 



Fracture of the neck of 

 the femur. 



Argyll-Robertson 

 pupil. 



A pupil that acts in accom- Usual tests for accommo- 

 modation but not to light. ' dation and light. 



Locomotor ataxia. 



Baccelli's sign 

 1 aphonic pectori- 

 '■ loquy). 



Reverberation of the whis- Whispered voice of patient 

 pered voice, heard through , auscultated through the 

 the chest-wall. chest. 



Pleural effusion. 



Baruch's sign. 



The resistance of the rectal 

 temperature to a bath of 75 

 for fifteen minutes with fric- 

 tion. 



Immersion in bath of 75 F. 



Typhoid fever. 



Bienner's change 

 j of sound. 



[Bouillaud, Tinte- 

 ment metallique 

 ' of. 



See GerhardV s change of 

 sound (in this table). 



A peculiar clink sometimes \ Auscultation, 

 heard to the right of the 

 apex-beat of the heart. 



Cardiac hypertrophy. 



Brach-Romberg 

 symptom. 



See Romberg'' s symptom. 



own-Sequard's 

 laralysis. 



rtou's sign. 



Hemiparaplegia with hemi- 

 anesthesia of opposite side. 



Lesion of lateral half 

 of spinal cord. 



Blue line at junction of teeth 

 with gums. 



Visual examination. 



Chronic lead-poisoning. 



neyne-Stokes' 

 respiration. 



u 



A succession of respirations 

 becoming progressively 

 shorter and more shallow, 

 then an intermission of vary- 

 ing duration, followed by pro- 

 gressive increase in depth 

 and length of respirations. 



In various affections in 

 which the brain is im- 

 plicated. Cerebral 

 edema. Uremia. 



Approaching dea«.h. 



