ANGLE 



84 



ANGLE 



included between the radius fixus and a line joining 

 the hormion and bregma. A., Bi-orbital, in optics, 

 that formed by the intersection of the axes of the 

 orbits. A., Broca's. See A., Facial, A., Occipital, 

 and A. , Parietal. A. c, that one of Lissauer's angles 

 included between the radius fixus and a line joining 

 the lambda and opisthion. A., Camper's. See A. , 

 Facial, and A., Maxillary. A., Carpal, in biology, 

 the bend of the wing. A., Cephalic, in craniom- 

 etry, a general term for the cranial and facial angles. 

 A., Cerebellar. See A., Suboccipital. A., Cerebral. 

 I. In craniometry, that formed by the frontal, Broca's 

 parietal, and the supra-occipital angles. 2. See A. 

 of Segond. A., Cervical (of Scapula), in veterin- 

 ary anatomy, the point of union of the anterior and 

 superior borders of the scapula. A., Chi, that one 

 of Lissauer's angles included between two lines run- 

 ning from the hormion to the basion and staphylion. 

 A., Cloquet's. See A. , Facial. A., Condylar, that 

 between the planes of the basilar groove and the occi- 

 pital foramen. A., Co-orbital, in craniometry, that 

 formed by the crossing of the anatomical plane of the 

 head by the bi-orbital plane. A., Coracoscapular, 

 in biology, that between the axes of the coracoid 

 and scapula. A., Coronofacial (of Gratiolet), in 

 craniometry, the angle that the facial line of Cam- 

 per forms with the plane passing through the coronal 

 suture. A., Costal. See A., Subcostal. A., Coty- 

 loid, in veterinary anatomy, the portion of the ilium 

 included between the cotyloid foramen and the supra- 

 cotyloid crest. A., Cotyloidean. See A. , Antero- 

 external {of Ischium). A., Cranial, in craniometry, 

 angles corresponding to the auricular angles, but having 

 their apices at the anterior border of the occipital fora- 

 men. A., Craniofacial (of Ecker). See A., Meta- 

 facial. A., Craniofacial (of Huxley), in craniometry, 

 that formed at the middle of the anterior border of 

 the jugum sphenoidale by lines drawn from the basion 

 and nasal spine. A., Critical, that made by a beam 

 of light passing from a rarer to a denser medium, with 

 the perpendicular, without being entirely reflected. 

 A. of Cuvier. See A., Facial. A. of Daubenton. 

 See A., Occipital. A., Deschamps's. SeeA.,/nio- 

 facial. A. of Deviation. I. In botany, that formed 

 by a leaf, branch, or root with the axis upon which 

 it is borne. 2. In magnetism, the angle traversed 

 by the needle when disturbed by some magnetic force. 

 3. In optics, that formed by a refracted ray and the pro- 

 longation of the incident ray. A. of Divergence, in 

 botany, that formed between succeeding organs in the 

 same spiral or whorl. A., Dorsal (of Scapula), in 

 veterinary anatomy, the junction of the superior and 

 posterior borders of the scapula. A. of Diirer. See 

 A. , Facial. A., Ecker's. See A. , Sphenoidal and A. , 

 Craniofacial. A. of Elevation, in optics, that made 

 by the visual plane with its primary position when moved 

 upward or downward. A., Ephippial (Welcker's). 

 See A. , Sphenoidal. A., Ethmocranial. See A., 

 Oljactory. A., External (of Ilium), in veterinary 

 anatomy, the anterior superior spine of the ilium. 

 A., External (of Mulder), in craniometry, that pro- 

 duced by the junction of Camper's line and a line 

 joining the basi-occipital bone and the nasion. A., 

 External (of Pubes), in veterinary anatomy, the por- 

 tion of the pubic bone constituting the chief part of 

 the cotyloid cavity. A. of the Eye. See Canthus. 

 A. f., that one of Lissauer's angles included between 

 the radius fixus and a line joining the inion and opis- 

 thion. A., Facial (of Broca). See A., Ophryo- 

 spinal Facial. A., Facial (of Camper), in cranio- 

 metry, that between the facial line of Camper and the 

 line drawn through the auricular and subnasal points. 



A., Facial (of Cloquet), in craniometry, that be- 

 tween the line drawn through the ophryon and the 

 alveolar point and the auricular-alveolar line. A., 

 Facial (of Cuvier). See A., Facial (of Geoffroy 

 St. Hilaire). A., Facial (of Durer), in crani- 

 ometry, that formed by a line tangent to the brow and 

 the lobule of the nose and a line joining the lobe of the 

 ear and the lower part of the nasal septum. A., 

 Facial (of Jacquart), in craniometry, that between 

 the line joining the subnasal point and the glabella and 

 the line joining the subnasal and auricular points. 

 A., Facial (of Segond). See A. of Segond. A., 

 Facial (of Geoffroy St. Hilaire), in craniometry, 

 that between the facial line of Camper and the line 

 joining the auricular point and the edge of the incisors. 

 A., Facial (of Topinard.) See A., Ophryo-spinal 

 Facial. A., Facial (of Virchow and Holder), in 

 craniometry, that formed by the union of a line joining 

 the naso-frontal suture and the most prominent point 

 of the lower edge of the superior alveolar processes, 

 and a line joining the superior border of the external 

 auditory meatus and the lower border of the orbit. 

 A., Fick's, in craniometry, one formed by the inter- 

 section of the basilar groove, and a line joining the 

 symphysis menti and the basion. A., Frontal, in 

 craniometry, one formed by lines joining the auricular 

 point and the ophryon and bregma. In ornithology, 

 that formed between the forehead and the upper mar- 

 gin of the beak. A., Frontal (of Lissauer), that 

 one included between lines joining the metopion and 

 the bregma and nasion. A., Fronto-glabellar, the 

 degree of inclination of the forehead. A., Gamma, 

 in optics, that formed at the center of rotation of the 

 eyes by the optic and visual axes. A. , Genal, in 

 biology, the posterior angle of the movable gena of 

 trilobites. A., Gratiolet's. See A. , Coronofacial. 

 A., Humeral (of the Scapula), in veterinary anat- 

 omy, a name given to the head of the shoulder blade. 

 A., Huxley's. See A. , Craniofacial. A. i., that one 

 of Lissauer's angles included between the radius fixus 

 and a line joining the posterior border of the incisor 

 foramen and the alveolar point. A., Ilio-ischial, 

 that between the ischium and the cotylo-sacral rib of 

 the ilium. A., Ilio-pubic, in veterinary anatomy, 

 that existing between the ilium and pubes. A., Ilio- 

 vertebral, that existing between the iliac bones and 

 the spinal column. A. of Incidence, in optics, the' 

 angle at which a ray of light strikes a denser medium 

 and undergoes reflection or refraction. A. of Incli- 

 nation (of Pelvic Canal), in obstetrics, that formed 

 by the anterior wall of the pelvis with the conjugate 

 diameter. A. of Inclination (of Pelvis), in obstet- 

 rics, that formed by the pelvis with the general line 

 of the trunk, or that formed by the plane of the infe- 

 rior strait with the horizon. A., Inferior (of Scapu- 

 la). See A., Humeral. A. of Inflexion, in veter- 

 inary anatomy, that formed by the quarter of the hoof 

 of a soliped with the commencement of the bar. A., 

 Inio-facial, in craniometry, Deschamps's modifica- 

 tion of Camper's line. It is the angle included be- 

 tween the two lines extending from the inion to the 

 glabella and from the inion to the symphysis of the 

 chin. A., Internal (of Ilium), in veterinary anat- 

 omy, the posterior superior spine of the ilium. A., 

 Internal (of Pubes), in veterinary anatomy, the 

 name for the angle of the pubes. A., Internal (of 

 Walther), in craniometry, that included between a 

 line joining the glabella and the nasion and another 

 from the occipital protuberance to the crista galli. A., 

 Interradial, in biology, that formed in the star-fish 

 by the coming together of the lateral walls of two 

 adjacent ambulacral grooves. A. of the Ischio-pubic 



