ANGLE 



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ANGLE 



Arch, that formed by the junction of the ischio-pubic 

 rami. A. of Jacquart. See A. , Facial. A. of 

 Jaw, the junction of the lower border of the ramus of 

 the mandible with its posterior border. A. of Land- 

 zert, that formed by the plane of the basilar groove 

 and the horizontal line of the jugum sphenoidale. 

 A. of Lavater, in craniometry, that contained be- 

 tween a line joining the point of the nose and the 

 outer angle of the eye, and a line running from the 

 same point to the angle of the mouth. According to 

 Lavater, the greater the angle the more intelligent the 

 individual. A., Limiting. See A., Critical. A. 

 of the Lips, those formed by the union of the lips at 

 either extremity of the mouth. A., Lissauer's, in 

 craniometry, a number of angles in the median plane 

 of the skull included between lines radiating from a 

 fixed line connecting the inion and hormion {radius 

 fixus.) See also A. , Frontal, and A. , Parietal. A., 

 Louis's, that between the manubrium and gladiolus 

 of the sternum due to retraction in the upper part of 

 the thorax. A. of Ludovici. See A. , Louis's. A., 

 Ludwig's. See A., Louis's. A., Lumbo-iliac, in 

 veterinary anatomy, that formed by the junction of the 

 sacrum and ilia. A. m., that one of Lissauer's angles 

 included between the radius fixus and a line joining 

 the opisthion and the basion. A., Maxillary (of 

 Camper), in craniometry, that included between two 

 lines extending from the point of contact of the upper 

 and lower central incisor teeth, one to the ophryon and 

 the other to the most prominent point of the lower jaw. 

 A., Metafacial (of Serres), that which the pterygoid 

 processes form with the base of the skull. A., Meter-, 

 in optics, the degree of convergence of the eyes 

 when centered on an object one meter distant from 

 each. A. of the Mouth. See A. of the Lips. A., 

 Mu, that one of Lissauer's angles included between 

 the radius fixus and a line joining the hormion and 

 basion. A., Mulder's. See A., External. A. n., 

 that one of Lissauer's angles included between the 

 radius fixus and a line joining the nasion and alveolar 

 point. A. n / ., that one of Lissauers angles included 

 between the radius fixus and a line joining the nasion 

 and subnasal point. A., Nasal (of Ranke), in 

 craniometry, that included between the horizontal 

 plane of the skull and a line passing through tiie mid- 

 dle of the alveolar border beneath the nasal spine and 

 the center of the naso-frontal suture. A., Nasal (of 

 Welcker), in craniometry, that included between the 

 naso-basilar and naso-subnasal lines. A., Naso- 

 basal (of Welcker). See A., Nasal. A., Naso- 

 malar, in craniometry, that formed by two lines 

 converging from the outer margins of the orbits to the 

 base of the nose. A. of the Neck. See A. of the Xucha. 

 A. of the Neck of the Femur, that formed between 

 the neck and shaft of the femur. A., Negative, the 

 name given to Quatrefages' parietal angle when it is 

 inversed. A. of the Nose, that between the nose 

 and the cheek. A., Nu, that one of Lissauer's angles 

 included between the radius fixus and a line joining 

 the hormion and nasion. A. of the Nucha, that formed 

 by the junction of the nucha with the neck. A. o., 

 that one of Lissauer's angles included between the 

 radius fixus and a line joining the lambda and bregma. 

 A. of Obliquity of Femur, that formed by the shaft 

 of the femur and a vertical line. A., Occipital, in 

 craniometry, that formed by the intersection of the 

 basicranial axis and the plane of the occipital foramen. 

 A., Occipital (of Brocal, in craniometry, that be- 

 tween the lines joining the opisthion and the basion 

 and nasal points. A., Occipital (of Daubenton), 

 in craniometry, the angle that Daubenton's line makes 

 with the line joining the basion and opisthion. A., 



Occipital, Second, in craniometry, that formed by 

 two lines joining the opisthion and the nasion and 

 nasal spine. A., Olfactory, in craniometry, that 

 formed by the intersection of the plane of the cribri- 

 form plate of the ethmoid and the basicranial axis. 

 A., Omega, that one of Lissauer's angles between 

 the radius fixus and a line joining the hormion and 

 lambda. A., Ophryo-alveolo-auricular. See A., 

 Facial {of Cloquet). A., Ophryo-spinal-facial, in 

 craniometry, that included between two lines from 

 the nasal spine to the ophryon and auricular point. 

 A., Optic, that included between lines joining the 

 extremities of an object and the nodal point. The 

 smallest is about 30 seconds. A., Orbito-alveolo- 

 condylar, in craniometry, that included between the 

 horizontal visual and alveolo-condylar planes. A., 

 Orbito-basilar, in craniometry, that included between 

 Barclay's basifacial plane and the plane of the orbital 

 axes. A., Orbito-facial. See A. , Orbito-maxillary. 

 A.. Orbito-maxillary, in craniometry, that included 

 between the two lines joining the auricular point and 

 the glabella and alveolar border. A., Orbito-occi- 

 pital, in craniometry, that included between the plane 

 of the occipital foramen and the bi-orbital plane. 

 A., Orifacial (of Barclay). I. That included be- 

 tween Camper's line and the plane of mastication. 

 2. That included between the median anteroposterior 

 line of the palatine arch and the median antero-poste- 

 rior line of the plane of the lower border of the in- 

 ferior maxilla. A. p., that one of Lissauer's angles 

 included between the radius fixus and a line joining 

 the staphylion and alveolar point. A., Palatine, in 

 craniometry, that included between Camper's line and 

 a line on the plane of the alveolar arch. A., Parietal 

 (of Broca), in craniometry, that included between 

 two lines joining the auricular point and the bregma 

 and lambda. A., Parietal (of Lissauer), that in- 

 cluded between lines drawn from the bregma and 

 lambda to the most prominent point of the parietal 

 bone. A., Parietal (of Quatrefages), in craniome- 

 try, that formed by the lines drawn through the ex- 

 tremities of the transverse maximum or bizygomatic 

 diameter and the maximum transverse frontal diameter 

 (called positive when it opens downward, negative 

 when it opens upward). A., Parietal, Posterior, in 

 craniometry, that included between two lines tangent to 

 the parietal eminence and the most prominent points 

 of the zygomatic arch. A., Pi, that one of Lissauer's 

 angles included between the radius fixus and a line 

 joining the hormion and alveolar point. A. of Polari- 

 zation, in optics, the angle of reflection at which light 

 is most completely polarized. A., Positive. See A., 

 Parietal {of Quatrefages). A., Posterior (of Ilium). 

 See A. , Cotyloid. A., Posterior (of Pubes) , in vet- 

 erinary anatomy, that portion of the pubes that 

 helps to close in the obturator foramen internally. A., 

 Posterior (of Scapula). See A., Dorsal {of Scap- 

 ula). A., Postero-external (of Ischium), in vet- 

 erinary anatomy, the tuberosity of the ischium. A., 

 Postero-internal (of Ischium), in veterinary 

 anatomy, the ischiadic arch. A., Premax- 

 illary. See A., Basifacial. A., Prepubic, that 

 formed by the male urethra in front of the pubes, 

 the penis being in- a flaccid state. A. of Prognath- 

 ism, in craniometry, the angle indicating the degree 

 of forward projection of the face. A., Psi. 1 . That 

 one of Lissauer's angles included between the radius 

 fixus and a line joining the hormion and opisthion. 

 2. In optics, that between the optic axis and line 

 of fixation. A. of the Pubes, that formed by the 

 junction of the pubic bones at the symphysis. A., 

 Pyramidal. See A., Positive. A. of Quatrefages. 



