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Author  |
Jeffcott, L.B.; Dalin, G. |
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Title |
Natural rigaidity of the horse's backbone |
Type |
Journal Article |
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Year |
1980 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
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Volume |
12 |
Issue |
3 |
Pages |
101-108 |
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Keywords |
Animals; Back Pain/physiopathology/veterinary; Horses/*anatomy & histology/physiology; Spine/*anatomy & histology/physiology |
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Abstract |
The functional anatomy of the thoracolumbar (TL) spine is considered in relation to the horse's ability to perform at speed and to jump. The morphological features quite clearly show the relative inflexibility of the equine back and this was confirmed by some experimental studies. Fresh post mortem specimens from 5 Thoroughbreds were used to estimate the limits of dorsoventral movement of the TL spine from mid-thoracic to the cranial lumbar (T10-L2). The individual spinous processes could be moved a mean 1.1-6.0 mm on maximum ventroflexion and 0.8-3.8 mm on dorsiflexion. The overall flexibility of the back was found to be 53.1 mm. Caudal to the mid-point of the back (T13) there was virtually no lateral or rotatory movement of the spine possible. The pathogenesis of some of the common causes of back trouble are discussed including the so-called vertebral subluxation and its treatment by chiropractic manipulation. From an anatomical viewpoint, this condition appears to be a misnomer and may simply be attributable to muscular imbalance leading to aspastic scoliosis. |
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English |
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0425-1644 |
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PMID:6447593 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
3811 |
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Author |
Jeong, S.; Han, M.; Lee, H.; Kim, M.; Kim, J.; Nicol, C.J.; Kim, B.H.; Choi, J.H.; Nam, K.-H.; Oh, G.T.; Yoon, M. |
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Title |
Effects of fenofibrate on high-fat diet-induced body weight gain and adiposity in female C57BL/6J mice |
Type |
Journal Article |
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Year |
2004 |
Publication |
Metabolism: clinical and experimental |
Abbreviated Journal |
Metabolism |
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Volume |
53 |
Issue |
10 |
Pages |
1284-1289 |
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Keywords |
Adipose Tissue/*anatomy & histology/drug effects; Animals; Antilipemic Agents/*pharmacology; Body Composition/*drug effects; Body Weight/drug effects; Dietary Fats/*pharmacology; Eating/drug effects; Fatty Acids/metabolism; Female; Gene Expression Regulation/drug effects; Leptin/metabolism; Liver/metabolism; Mice; Mice, Inbred C57BL; Ovariectomy; Procetofen/*pharmacology; RNA, Messenger/biosynthesis/genetics; Receptors, Cytoplasmic and Nuclear/biosynthesis/genetics/metabolism; Transcription Factors/biosynthesis/genetics/metabolism; Weight Gain/*drug effects |
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Abstract |
Our previous study suggested that fenofibrate affects obesity and lipid metabolism in a sexually dimorphic manner in part through the differential activation of hepatic peroxisome proliferator-activated receptor alpha (PPARalpha) in male and female C57BL/6J mice. To determine whether fenofibrate reduces body weight gain and adiposity in female sham-operated (Sham) and ovariectomized (OVX) C57BL/6J mice, the effects of fenofibrate on not only body weight, white adipose tissue (WAT) mass, and food intake, but also the expression of both leptin and PPARalpha target genes were measured. Compared to their respective low-fat diet-fed controls, both Sham and OVX mice exhibited increases in body weight and WAT mass when fed a high-fat diet. Fenofibrate treatment decreased body weight gain and WAT mass in OVX, but not in Sham mice. Furthermore, fenofibrate increased the mRNA levels of PPARalpha target genes encoding peroxisomal enzymes involved in fatty acid beta-oxidation, and reduced apolipoprotein C-III (apo C-III) mRNA, all of which were expressed at higher levels in OVX compared to Sham mice. However, leptin mRNA levels were found to positively correlate with WAT mass, and food intake was not changed in either OVX or Sham mice following fenofibrate treatment. These results suggest that fenofibrate differentially regulates body weight and adiposity due in part to differences in PPARalpha activation, but not to differences in leptin production, between female OVX and Sham mice. |
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Department of Life Sciences, Mokwon University, Taejon, Korea |
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0026-0495 |
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PMID:15375783 |
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no |
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Call Number |
refbase @ user @ |
Serial |
72 |
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Author |
Joffe, T.H.; Dunbar, R.I. |
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Title |
Visual and socio-cognitive information processing in primate brain evolution |
Type |
Journal Article |
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Year |
1997 |
Publication |
Proceedings. Biological Sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
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Volume |
264 |
Issue |
1386 |
Pages |
1303-1307 |
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Keywords |
Animals; Brain/anatomy & histology/*physiology; Cognition/physiology; *Evolution; Geniculate Bodies/anatomy & histology/physiology; Humans; Mental Processes/physiology; Neocortex/physiology; Primates/anatomy & histology/*physiology/*psychology; *Social Behavior; Visual Cortex/anatomy & histology/physiology |
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Abstract |
Social group size has been shown to correlate with neocortex size in primates. Here we use comparative analyses to show that social group size is independently correlated with the size of non-V1 neocortical areas, but not with other more proximate components of the visual system or with brain systems associated with emotional cueing (e.g. the amygdala). We argue that visual brain components serve as a social information 'input device' for socio-visual stimuli such as facial expressions, bodily gestures and visual status markers, while the non-visual neocortex serves as a 'processing device' whereby these social cues are encoded, interpreted and associated with stored information. However, the second appears to have greater overall importance because the size of the V1 visual area appears to reach an asymptotic size beyond which visual acuity and pattern recognition may not improve significantly. This is especially true of the great ape clade (including humans), that is known to use more sophisticated social cognitive strategies. |
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School of Life Sciences, University of Liverpool, UK |
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0962-8452 |
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Notes |
PMID:9332015 |
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no |
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Call Number |
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Serial |
2095 |
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Author |
Jordan, J. |
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Title |
[Modern views on the structure and function of the vomeronasal (Jacobson's) organ in mammals] |
Type |
Journal Article |
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Year |
1970 |
Publication |
Otolaryngologia Polska. The Polish Otolaryngology |
Abbreviated Journal |
Otolaryngol Pol |
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Volume |
24 |
Issue |
4 |
Pages |
457-462 |
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Keywords |
Animals; Cats; Dogs; Guinea Pigs; Horses; Humans; Mice; Nasal Septum/anatomy & histology/blood supply/cytology/innervation/physiology; Nose/*anatomy & histology/blood supply/innervation/*physiology; Rabbits; Rats; Sheep; Smell |
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Polish |
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Original Title |
Obecne poglady na budowe i czynnosc narzadu lemieszowo-nosowego (Jacobsona) u ssakow |
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ISSN |
0030-6657 |
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Notes |
PMID:4918960 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4315 |
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Author |
Kobayashi, K.; Jackowiak, H.; Frackowiak, H.; Yoshimura, K.; Kumakura, M.; Kobayashi, K. |
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Title |
Comparative morphological study on the tongue and lingual papillae of horses (Perissodactyla) and selected ruminantia (Artiodactyla) |
Type |
Journal Article |
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Year |
2005 |
Publication |
Italian Journal of Anatomy and Embryology = Archivio Italiano di Anatomia ed Embriologia |
Abbreviated Journal |
Ital J Anat Embryol |
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Volume |
110 |
Issue |
2 Suppl 1 |
Pages |
55-63 |
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Keywords |
Animals; Artiodactyla/*anatomy & histology/physiology; Cattle; Connective Tissue/physiology/ultrastructure; Feeding Behavior/physiology; Goats/anatomy & histology/physiology; Horses/anatomy & histology/physiology; Mastication/physiology; Microscopy, Electron, Scanning; Perissodactyla/*anatomy & histology/physiology; Tongue/physiology/*ultrastructure |
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Abstract |
A common characteristic of horses, Rocky Mountain goats, and cattle is that they all have a well developed lingual prominence on the dorsal surface of the posterior area of the tongue. Foliate papillae were found in the horse studied but not in the goat or in cattle. The horse filiform papillae had a long and slender external form with a thin and slender CTC, while in the goat and cattle the external form consisted of a large thick main process and the CTC consisted of a bundle of numerous rod-shaped protrusions. The special papilla found on the lingual prominence resembled larger filiform-like papillae in the horses; however, in the goat and cattle it was a very thick and large tongue like papillae. The horses had two large vallate papillae, while the goat and cattle had 15 or more vallate papillae at the posterior area of the lingual prominence. This suggests that the fine structure of horse tongues may display a more primitive pattern than that present in goats and cattle. |
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Address |
Department of Anatomy, School of Dentistry at Niigata, The Nippon Dental University, Niigata, Japan. kobayashi@ngt.ndu.ac.jp |
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English |
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Series Volume |
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ISSN |
1122-6714 |
ISBN |
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Notes |
PMID:16101021 |
Approved |
no |
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Call Number |
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Serial |
1887 |
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Author |
Kraus-Hansen, A.E.; Fackelman, G.E.; Becker, C.; Williams, R.M.; Pipers, F.S. |
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Title |
Preliminary studies on the vascular anatomy of the equine superficial digital flexor tendon |
Type |
Journal Article |
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Year |
1992 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
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Volume |
24 |
Issue |
1 |
Pages |
46-51 |
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Keywords |
Angiography/veterinary; Animals; Exercise Test/veterinary; Forelimb; Horses/*anatomy & histology/surgery; Microcirculation; Microscopy, Electron, Scanning; Tendons/*blood supply/surgery/ultrastructure |
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Abstract |
The vascular and microvascular anatomy of normal equine superficial digital flexor tendons was studied by dissection of vinyl-perfused specimens and by microangiography on high detail film. The presence of an extensive intratendinous vascular latticework was confirmed, and a 'nutrient artery' described closely associated with the accessory ligament of the superficial digital flexor tendon (proximal check ligament). Circumferential stripping of the paratenon from the tendon to eliminate afferent vessels was performed bilaterally in three horses and unilaterally in a fourth, followed by a treadmill training regimen. No resulting intratendinous lesions could be documented on gross post mortem and histological examination at three, 10, or 35 days post operatively. There was mild paratendinous proliferation in all instances. In one horse, four intratendinous ligatures were placed within the medial and lateral borders of the contralateral tendon to isolate further from its blood supply a 10 cm segment. Gross lesions at 35 days post operatively included a marked paratendinous response involving the entire 10 cm segment, and a darkened, soft focus within the core of the tendon. Histopathology and electron microscopy demonstrated focal degeneration. It was concluded that the blood supply of the normal equine superficial digital flexor tendon is primarily intratendinous, rather than paratendinous as previously thought. The lesions in one horse similar to those in naturally occurring tendinitis supported a vascular aetiology of the disease, and set the groundwork for studies aimed at the development of a clinically relevant tendinitis model. |
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Department of Surgery, Tufts University School of Veterinary Medicine, North Grafton, Massachusetts 01536 |
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English |
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0425-1644 |
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Notes |
PMID:1555540 |
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no |
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Call Number |
refbase @ user @ |
Serial |
151 |
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Author |
Kumar, P.; Timoney, J.F.; Southgate, H.H.; Sheoran, A.S. |
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Title |
Light and scanning electron microscopic studies of the nasal turbinates of the horse |
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Journal Article |
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Year |
2000 |
Publication |
Anatomia, histologia, embryologia |
Abbreviated Journal |
Anat Histol Embryol |
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Volume |
29 |
Issue |
2 |
Pages |
103-109 |
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Keywords |
Animals; Female; Horses/*anatomy & histology; Male; Microscopy, Electron, Scanning; Turbinates/*cytology/ultrastructure |
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Abstract |
The nasal turbinates of 5 young horses were studied by light and scanning electron-microscopy. Stratified cuboidal epithelium lined the rostral part of the dorsal and ventral nasal turbinates of the vestibular region. The polyangular microvillus cells of this region were separated by linear depressions. The mid and caudal parts of the dorsal and ventral nasal turbinates and the rostral part of the ethmoturbinates were lined by pseudostratified columnar ciliated respiratory epithelium. Numerous cilia with dilated blebs on the ciliated cells concealed adjacent non-ciliated supporting cells and goblet cells. The olfactory zone consisting of the olfactory vesicle and a dense network of olfactory cilia localized to the caudal part of the ethmoturbinates. The three regions were delineated from each other by transitional zones. |
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Address |
Gluck Equine Research Center, University of Kentucky, Lexington 40546-0099, USA |
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English |
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ISSN |
0340-2096 |
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Notes |
PMID:10932387 |
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no |
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Call Number |
refbase @ user @ |
Serial |
505 |
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Author |
König, H.E.; Wissdorf, H.; Probst, A.; Macher, R.; Voß, S.; Polsterer, E. |
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Title |
Considerations about the function of the mimic muscles and the vomeronasal organ of horses during the Flehmen reaction |
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Journal Article |
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Year |
2005 |
Publication |
Pferdeheilkunde |
Abbreviated Journal |
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Volume |
21 |
Issue |
4 |
Pages |
297-300 |
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Keywords |
Anatomy; Behaviour; Flehmen reaction; Horse; Vomeronasal organ |
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Abstract |
Additional to the olfactory epithelium, the equine vomeronasal organ serves to the perception of odorous substances and specially for pheromones. In a middle-size horse this organ has an extension in length from an imaginary transverse plane about 10 cm caudally the nostrils to a transverse plane through the middle of the second premolar tooth. During the Flehmen reaction the levator labii superior, nasolabial, caninus and lateralis nasi muscles contract. The upper lip and the tip of the nose are lifted. The opening of the nostrils is narrowed, caused by the convergence of the plate and horn of the alar cartilage. In this manner in case of Flehmen reaction air is directly conducted towards the opening of the vomeronasal organ into the nasal cavity during inspiration. During the “Flehmen” horses assume a characteristic posture. |
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Department für Pathobiologie (Institut für Anatomie), Veterinärmedizinische Universität Wien, Veterinärplatz 1, A-1210 Wien, Austria |
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Notes |
Export Date: 21 October 2008; Source: Scopus |
Approved |
yes |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4554 |
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Author |
Lindsay, F.E.; Burton, F.L. |
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Title |
Observational study of “urine testing” in the horse and donkey stallion |
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Journal Article |
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Year |
1983 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
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Volume |
15 |
Issue |
4 |
Pages |
330-336 |
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Keywords |
Animals; *Behavior, Animal; Horses/anatomy & histology/*physiology; Male; Nasal Septum; Nose/anatomy & histology; Olfactory Mucosa/physiology; Perissodactyla/*physiology; Sex Attractants/urine; Smell/physiology |
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Abstract |
Although “urine testing” is said to enable the male equid to assess the sexual status of the mare, there are no reports in the literature of any detailed study of this behavioural response of the stallion. Behavioural response to conspecific urine was studied in two horse stallions and one donkey stallion. The relevant nasopalatine anatomy is described. Events observed during urine testing included head, neck, lip, jaw, tongue movements, penile changes and nasal secretion. Nasal endoscopy indicated that the source of part of the nasal secretion was the secretory glands of the vomeronasal organ complex. The significance and probable function of these events in urine testing is discussed. |
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0425-1644 |
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Notes |
PMID:6641679 |
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no |
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Call Number |
refbase @ user @ |
Serial |
1955 |
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Author |
Macfadden, B.J. |
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Title |
Evolution. Fossil horses--evidence for evolution |
Type |
Journal Article |
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Year |
2005 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
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Volume |
307 |
Issue |
5716 |
Pages |
1728-1730 |
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Keywords |
Animals; Body Size; DNA, Mitochondrial; Diet; *Equidae/anatomy & histology/classification/genetics; *Evolution; Feeding Behavior; *Fossils; *Horses/anatomy & histology/classification/genetics; Paleodontology; Phylogeny; Time; Tooth/anatomy & histology |
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Address |
Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA. bmacfadd@flmnh.ufl.edu |
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1095-9203 |
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PMID:15774746 |
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Call Number |
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Serial |
1892 |
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