Clinical Anatomy of the European Hamster 
nn. phrenici 
see nerves, phrenic 
nn. splanchnic 
see nerves, splanchnic 
n. trigeminus 
see nerve, trigeminal 
n. trochlear IS 
see nerve, trochlear 
nn. vagi 
see nerves, vagus 
n. vagus dexter 
see nerve, vagus, right 
n. vagus sinister 
see nerve, vagus, left 
nostrils (nares), 1 , 8, 32 
notch, clavicular, 85 
see also sulcus 
oculi 
see eyes 
olfactory nerve 
see nerve, olfactory 
omentum 
greater {omentum majus), 123, 124, 127 
lesser (omentum minus), 125 
omentum majus 
see omentum, greater 
omentum minus 
see omentum, lesser 
opening 
aortic 
mediastinum, 88 
laryngeal (aditus laryngis), 67, 68 
nasomaxillary 
of paranasal cavity, 19 
obturator 
of pelvis, 121 
preputial (ostinum praeputiale), 1 
urinary (orificium urethrae externum), 2 
urogenital, 11 
ophthalmic plexus, 25, 26, 64 
oral cavity, 19 
see cavity, oral 
orbit (orbita), 31 
adipose tissue of (corpus adiposum orbitae), 
24 
organa uropoetica, 168, 169 
see separate urinary organs 
organ(s) 
flank, 2, 13 
234 
umbilical glandular, 2, 12, 32, 33, 37 
vomeronasal (organum vomer onasale), 18-19, 
32,33,34,41 
organum vomeronasale 
see organs, vomeronasal 
oropharynx (pharynx, pars oralis), 17, 19, 66 
orifice(s) 
external, of uterus (ostium uteri externum), 
139 
internal, of uterus (ostia uteri interna), 139 
vaginal (ostium vaginae), 1, 139 
orificium urethrae externum 
see opening, urinary 
OS coxae 
see bone, pelvic 
OS ethmoidale 
see bone, ethmoid 
OS frontale 
see bone, frontal 
OS hyoideum 
see bone, hyoid 
OS ilium 
see bone, ilium 
OS incisivum 
see bone, premaxillary 
OS interparietale 
see bone, interparietal 
OS ischium 
see bone, ischium 
OS nasale 
see bone, nasal 
OS occipitale 
see bone, occipital 
OS palatinum 
see bone, palatine 
OS parietale 
see bone, parietal 
OS praesphenoidale 
see bone, presphenoid 
OS pubis 
see bone, pubic 
OS sacrum 
see bone, sacrum 
OS sphenoidales 
see bone, sphenoid 
OS temporalis, pars mastoidea 
see bone, temporal, mastoid process 
OS temporalis, pars petrosa 
see bone, temporal, petrous portion 
