ABDi 'MINi ' AN I 1 Kb >R 



18 



Al;ii S 



cavity of a few fishes with tin- urino genital clo 

 and employed in the outward transportation ol the 

 erative products. A. Press. .v> P 



Abdominal Regions. 



min ■' . A. Reflex. See Reflexes, Table of. A. Re- 

 gions. 3< Abdomen. A. Respiration, R. carried 

 en chiefly by the diaphragm and abdominal muscles. 

 A. Ribs, transverse ossifications (dermal?) of the 

 abdominal wall of crocodiles and certain other reptiles. 

 A. Ring, External, a triangular opening in the fibers 

 of the aponeurosis of the external oblique muscle trans- 

 mitting the spermatic cord of the male and the round 

 ligament of the female. A. Ring, Internal, an oval 

 aperture in the fascia transvi rsalis that transmits the 

 spermatic cord of the male and the round ligament of 

 the female. A. Scutella, the broad, belly scales of 

 serpents, so far as the anus. A. Section. See Celi- 

 r. A. Segments, the more or less evident trans- 

 divisions or somites of the abdomen in arthropods. 

 A. Typhus, Enteric Fever. A. Vertebrae, those 

 e in fishes, that give off ribs or processes arching 

 the visceral cavity. 



Abdomino-anterior [ab-dom , -in-o-an-te f -re-or). Ila\ 

 ing the belly forward (used of the fetus in utero). 



Abdomino-genital (ab-dom / -in-o-jen / -it-al). Relating 

 be abdomen and the genitalia. A. Nerve, Inferior, 

 the ilioinguinal nerve. A. Nerve, Superior, the ilio- 

 hypogastric nerve. 



Abdomino - hysterectomy [ab-dom' '-in-o-his-ler-eh' '- 

 Removal of the uterus through an abdominal 

 incision. 



Abdomino - hysterotomy (ab-dom / -in-o-his-ter-ot / -o- 

 Hysterotomy through an abdominal incision. 



Abdomino-posterior [ab-dom' -in-o-pos-te / -re-or). Ha> 

 ing the belly toward the mother's back (used of the 



Abdomino-scrotal [ab-dom f •in-o-skro f -tal |. Relating 

 to > and the scrotum. A. Muscle, the 



Abdomino-thoracic [ab-dom' -in-o-tho-ras f -ik). I' 



latii i and thorax. 



Abdomino - uterotomy [ab-dom' ' -in-o-u-ier-ot' '-o me). 



my. 

 Abdomino-vesical '-ik-al). Relating 



i"' iri nary bladder. A. Pouch, a 



fold of the peritoneum in which are comprised the 



urachal 

 Abdominoscopy [ab-dom [abdomen; 



•nine]. Examination of the abdomen 



for diagnostic purposes, b) inspection, palpation, meas- 

 urement, percussion, etc. 



Abdominous [ab-dom' -in-us) [abdere, to hide]. Hav- 

 ing a large abdomen. 



Abduce | [ab, away ; du , to lead]. To draw 



away, as by an abductor musi 



Abducens [ab-du f -sews) [L., "leading away"]. A 

 term applied to certain muscles, or then nerves, thai 

 diaw the related pan from the median line of the body. 

 Also, the M\th pair of nerves supplying the external 

 n i !i ..i the eye. A. oculi. See Muscles, Table of. 



Abducent [ab-du' -sent). See Abducens. 



Abduct [ab-dukf) [ab, from; ducere, to draw]. To draw. 

 or cause to move, awaj from the median line, whether 

 i>\ the bod) or of a limb. 



Abduction [ab-duk* '-shun) [ab, from; ducere, to lead}. 

 I. The withdrawal of a part from the axis oi the body, 

 or oi a limb. 2 The recession or separation from 1 

 other of the parts oi a fractured bone. 3. A. of the 

 Eyes, the power of the external recti, measured by 

 the maximum ability to preserve singleness of the 

 image with prisms placed bases toward the nose. It 1- 

 commonly from i> to 8 . See, also Adduction. 



Abductor [ab-duk' -tor). Same as Abducens, a. v. A. 

 Auris. See Muscles, Table 



Abelmoschus [a-bel-mos'-kus) [Ar., 'a abb-el-mi 

 grain of musk]. A genus of malvaceous plants. A. 

 esculentus furnishes tin- esculent known as gumbo, or 

 okra. A. moschatus affords Ambrette, a. v., or musk 

 seed, formerly used in medicine. I'nof. 



Abepithymia [ab-ep-e-thi' '-me-ah) [ab, from; kiriBvuta, 

 longing]. I. A perverted longing, or desire. 2. Pa- 

 ralysis of the solar plexus (the diaphragm formerly was 

 regarded as the seat of the soul [^17/60], and of the 

 di .sires I. 



Abernethy's Operation. See Operations, Table of. A. 

 Sarcoma, a form of spindle-celled vascular sar- 

 coma. 



Aberrant (ab-er'-ant) [ab, from; errare, to wander]. 

 Deviating from the normal or regular type, in appear- 

 ance, structure, course, etc., e.g., the aberrant duct of 

 the testis or liver, aberrant arteries, etc. 



Aberration 1 ab-er-a' -shun >m; errare,to wander]. 



Deviation from the normal ; mental derangement; fetal 

 malformation; vicarious menstruation; escape of the 

 fluids of the body by any unnatural channel. In optics, 

 any imperfection of localization or refraction of a lens. 

 A., Chromatic, the dispersion aiding from unequal 

 refraction of light of different parts of the spectrum. The 

 violel rays being more refrangible than the led rays, are 

 brought to a focus nearer the lens, and the image is sur- 

 rounded by a halo of colors. A., Mental, a degree of 

 paranoia that may or may not amount to insanity. A., 

 Spherical, the cm ess of refraction of the peripheral 

 part of a convex lens over the central area, producing an 

 imperfect focus and a blurred image. 



Abesamum [ab-es r -am-um) [I..]. Wheel-grease; fat 

 charged with iron; formerly used as a remedy. 



Abevacuation [ab-e-vak-u-a'-shun) [ab, from; evacua- 

 tion^. 1. A morbid e\ acuation ; an excessive or deficient 

 discharge. 2. The passage of matter from one organ 

 Or ca\ ity into another ; metastasis. 



Abeyance [ab-a'-am 1 [0.1 r., lor "open-mouthed ex- 

 pectation"]. A suspension of activity, or of function; 

 a stati of suspended animation, or anion. 



Abi {ah* be). See Lucuma. 



Abiaba [ah beah'-bah). See Lucuma. 



Abicum [ab f -ik-um) [ I..]. The thyroid cartilage. (I >bs., 

 01 rare. ) 



Abiesu/' nus of coniferous plants, includ- 



ing the fir, hemlock and spruce A. balsamea, Silver 

 Fir, balsam Fir, or I'.alm of < lilead, a tree of the nat. 



