ARCH 



90 



ARCHETYPE 



arm, formed by divisions of the anastomotic artery and 

 the profunda, radial, and ulnar recurrent arteries. A., 

 Dorsal (of the foot), one on the dorsum of the foot, 

 which unites the tarsal and metatarsal branches of the 

 dorsal artery of the foot. A., Dorsal Vertebral, the 

 neural arch. A., Epencephalic, the bones lying 

 over the epencephalon, uniting in man to form the oc- 

 cipital bone. Syn., Neurooccipital arch. A., Facial, 

 the first postoral arch. A. Femoral, Deep, a band of 

 fibers originating apparently in the transverse fascia, 

 arching across the crural sheath and attached to the 

 middle of Poupart's ligament and the pectineal line. 

 Syn., Deep crural arch. A.s of the Foot, certain 

 arches formed by the bones of the foot ; the most dis- 

 tinct is the transverse in the line of the tarsometatarsal 

 articulations. The inner longitudinal is composed of 

 the os calcis, the astragalus, the navicular, the three 

 cuneiforms, and the first three toes, and the outer lon- 

 gitudinal is made up by the os calcis, the cuboid, and 

 the fourth and fifth toes. A., Gluteal, an opening in 

 the gluteal fascia transmitting the gluteal vessels and 

 nerves. A., Hemal, Owen's term for the inferior 

 loop of the typical vertebra. It is so called because it 

 surrounds the essential portion of the vascular system. 

 It is formed dorsally by the centrum, laterally by the 

 pleurapophyses and hemapophyses, and inferiorly by 

 the hemal spine. Syn., A., Infravertebral ; A., Sub- 

 central ; A., Vertebral ventral. A., Hyoid, the 

 second branchial arch of vertebrates. Syn., A., Lin- 

 gual ; A. of tongue ; A., Parietohemal. A., Infra- 

 vertebral. See A., Hemal. A., Inguinal, Pou- 

 part's ligament. A., Ischiadic, the space included 

 between the dorsal borders of the ischia of the horse. 

 A., Ischiopubic, that formed by the pubis and the is- 

 chiopubic branches. A., Ischiosacral, one formed 

 by the sacrum, the descending branches of the ischia, 

 and the ilia lying between. Syn., Sitting arth. A., 

 Jugal, the zygoma. A., Langer's Axillary, the 

 thickened border of fascia which forms a bridge across 

 the bicipital groove. A., Laryngeal, Callender's 

 term for one in the embryo composed of a membranous 

 plate extending from the lower portion of the skull 

 and developing into the inferior constrictor muscle, the 

 cartilages of the larynx, the superior portion of the 

 trachea, and the thyroid body. A.s, Lateral Inferior 

 (of the skull), the bones encircling the mouth, nose, 

 and larynx A.s, Lateral Superior, the bones encir- 

 cling the cerebrum, the cerebellum, and the oblongata. 

 A.s, Limb, the pectoral and pelvic arches. A., Lin- 

 gual, the hyoid arch. A., Mandibular, the first 

 branchial arch, developing into the lower jaw. Syn., 

 A., Maxillary. A., Maxillary, I. See A., Man- 

 dibular. 2. See A., Palatomaxillary. A., Meck- 

 el's Crural, Poupart's ligament. A., Mesenceph- 

 alic, one formed by the basisphenoid, alisphenoid, 

 parietal, and mastoid bones. Syn., A., Neuroparictal. 

 A., Nasal, one uniting the two frontal veins. A., 

 Neural, the superior loop of the typical vertebra in- 

 closing the neural canal. A., Neurofrontal. See 

 A., Prosencephala. A., Neuronasal. See A. , 

 Rkinencephalic. A., Neurooccipital. See A., 

 Epencephalic. A., Neuroparietal. See .-/., Afesen- 

 cephalir. A., Occipitohemal. See Girdle, Shoul- 

 der (Illus. Diet.). A., Orbital, the superior margin 

 of the orbit. A., Osteoblastic, those formed im- 

 perfectly or completely by the osteoblasts, arising from 

 the bony trabeculas already developed and finally be- 

 coming bony. A., Palatal, the concavity of the hard 

 palate when seen in transverse section. A. of the 

 Palate, Posterior, that formed by the posterior pillars 

 of the fauces. Syn., A., Palatopharyngeal. A., 

 Palatine, that formed by the anterior pillars of the 



fauces. Syn., Anterior arch of the palate. A., Pala- 

 tomaxillary, one formed by the palatine, maxillarv, 

 and premaxillary bones or their analogs ; it is looked 

 upon as the hemal arch of the nasal vertebra 

 A., Maxillary. A., Palatopharyngeal. See A. 01 

 Palate, Posterior. A., Palmar, Deep. See A. 

 Palmar (Illus. Diet.). A., Palmar, Superficial 

 the continuation of the ulnar artery across the palm. 

 A., Parietohemal. See A., Hyoid. A., Pectoral. 

 See Girdle, Shoulder (Illus. Diet.). A., Pelvic, the 

 bones of the pelvis considered as the hemal arches of 

 the sacral vertebras. A., Pharyngeal, the fifth La 

 of branchial arches. A., Posthyoid, the fourth am 

 fifth of the postoral arches. A.s, Postoral, Viscerali 

 A.s, Poststernal. See A., Post-oral (Illn 

 A.s, Preoral. (See Plates, Pacial Illus. Die 

 prop, a support for correction of flat-foot. A., Pros 

 encephalic, one considered as the neural arch of tb 

 frontomandibular vertebra ; it is formed by the frontal 

 presphenoid, and orbitosphenoid bones. Syn., A. 

 Neurofrontal. A., Radial. See A., Paluu 

 Diet.). A., Rhinencephalic, the neural arch of tb 

 nasal vertebra, formed by the vomer and the prefront] 

 and nasal bones. Syn., A., Neuronasal. A., Ric; 

 lan's, the arch of the mesentery which is attached tot! 

 transverse mesocolon. A., Scapular, A., Scapuk; 

 clavicular, A., Scapulocoracoid. Set 

 Shoulder (Illus. Diet.). A., Senile. See Am\ 

 senilis (Illus. Diet.). A., Sitting. See A 

 sacral. A.s, Skeletal. See A., Post-oral (Illui 

 Diet.). A., Standing. See A., Cotylosat 

 Stylohyoid, the hemal arch of the parietal verteb 

 formed by the stylohyal, epihyal, ceratohyal, 

 glossohyal, and urohyal bones. A.s, Subaxial. S 

 A., Post-oral (Illus. Diet.). A., Subcarpal, in ma i 

 quadrupeds the analog of the palmar arch in nia| 

 A., Subcentral, the hemal arch. A., Subocuhi 

 A., Suborbital. See A., Zygomatic (Illus. I'M 

 A., Subpubic. See A. of Pubes (Illus. 1>i 

 Superciliary. See A'idge, Superciliary (Illus. Did 

 A., Supracarpal, in quadrupeds the ana! 

 superficial palmar arch of man ; it is form< 

 junction of the epicondylar artery and biam I 

 posterior radial arteries. A., Supravertebral, li 

 neural arch. A.s, Tarsal, the arches of the 

 arteries. A., Temporal, the zygomatic arch. / 

 Tergal. Same as A., Dorsal. A., Thyrocartilai 

 inous, a communicating branch between th< 

 thyroid arteries of the two sides, lying at about j 

 level of the angle of the thyroid earn 

 Thyrohyal, A. ."Thyrohyoid, the third of the p< 

 oral arches; it develops into the hyoid bod 

 greater cornua of the hyoid bone A. of Tongue. 

 A., Hyoid (Illus. Diet.). A., Tonsillar 

 mus of the Fauces (Illus. Diet). A., Trabecu 

 one formed by the junction of the middle 

 of the skull, containing tin- hypophysis and the toll 

 dibulum. A.s, Vascular, the postoral an 

 Vertebral, I. A neural arch. 2. A heraal 

 A., Vertebral, Ventral. See ./., Hemal. A., V 

 ceral. See./., Post-oral (Illus. Diet.). 



Archaeism [ar'-ke-izm). The theory of tin 



Archaeus. (See Illus. Diet.) 2. v. Helm< 

 for the vital principle of an organism. 



Archelogy {ar-keF-o-je) [hpx'h a beginning; 

 science]. The study of the foundation pi 

 anthropology. 



Archetype.* (See Illus. Diet.) 2. Thai 

 spirit or substance which, according to tin 

 theory, gave rise t<> all the events of life and allfl 

 phenomena of nature under the inrlueno 

 devils, or stars. [Park.] 



