Anatomical study of the vomeronasal organ and the nasopalatine duct of the one-humped camel

Arnautovic, I.; Abdalla, Omer; Fahmy, M. H.

doi:10.1159/000143537

Cited by 10 publications

(5 citation statements)

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“…The topographical and histological features of the camel VNO were in agreement with the findings of the previous reports [ 1 , 11 ]. Briefly, the camel VNO was a pair of epithelial tubes situated at the base of the nasal septum ( Fig.…”

supporting

confidence: 92%

Immunohistochemical studies for the neuronal elements in the vomeronasal organ of the one-humped camel

Ibrahim

Abdel-Maksoud

Taniguchi

et al. 2015

The Journal of Veterinary Medical Science

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The neuronal elements of the vomeronasal organ (VNO) of camel were investigated immunohistochemically. PGP 9.5 labeled the receptor cells in the vomeronasal sensory epithelium, but not the supporting or basal cells. OMP stained some receptor cells, but no immunoreactive signals for OMP were detected in the non-sensory epithelium. PLCβ2 labeled scattered cells in the sensory epithelium and a larger number of cells in the non-sensory epithelium. Double labeling immunohistochemistry revealed that the PLCβ2-positive cells were surrounded by substance P-positive nerve fibers. Collectively, these data suggest that the camel VNO bears, in addition to the mature vomeronasal receptor cells, trigeminally-innervated solitary chemosensory cells which are expected to play a substantial role in the control of stimulus access to the VNO.

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supporting

confidence: 92%

Immunohistochemical studies for the neuronal elements in the vomeronasal organ of the one-humped camel

Ibrahim

Abdel-Maksoud

Taniguchi

et al. 2015

The Journal of Veterinary Medical Science

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“…The cell types found in the non‐receptor epithelium are similar to the cell types found in the respiratory epithelium of the bandicoot (Kratzing, 1982b) and the respiratory epithelium of the tammar. Unicellular glands in the non‐receptor epithelium have been reported in various eutherians (Arnautovic et al. 1970; Kratzing, 1971; Adams & McFarland, 1972; Breipohl et al.…”

Section: Discussionmentioning

confidence: 99%

The vomeronasal organ of the tammar wallaby

et al. 2008

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The vomeronasal organ is the primary olfactory organ that detects sexual pheromones in mammals. We investigated the anatomy of the vomeronasal organ of the tammar wallaby ( Macropus eugenii ), a small macropodid marsupial. Pheromones may be important for activation of the hypothalamo-pituitary axis of tammar males at the start of the breeding season because plasma testosterone and luteinizing hormone concentration in males rise concurrently with pregnancy and the post-partum ovulation in females. The gross anatomy and the connection to the brain of the vomeronasal organ were examined by light and electron microscopy in adult male and female tammars. The vomeronasal organ was well developed in both sexes. The vomeronasal organ is a tubular organ connected at the rostral end via the nasopalatine duct (incisive duct) to the mouth and nasal cavity. At the rostral end the lumen of the vomeronasal organ was crescent shaped, changing to a narrow oval shape caudally. Glandular tissue associated with the vomeronasal organ increased towards the blind end of the organ. The tammar has the typical pattern of mammalian vomeronasal organs with electron-dense supporting cells and electron-lucent receptor cells. Microvilli were present on the surface of both epithelia while cilia were only found on the surface of the non-receptor epithelium. Some non-receptor epithelial cells appeared to secrete mucus into the vomeronasal organ lumen. The vomeronasal organ shows a high degree of structural conservation compared with eutherian mammals. The degree of vomeronasal organ development makes it likely that, as in other mammals, pheromones are important in the reproduction of the tammar.

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“…It communi cates directly with the nasal cavity by a small pore on its rostral end in the rabbit [1,6], guinea pig [1], hamster [5], rat [6,22], mouse [6,23] and some bat species [24], while it joins the nasopalatine duct and communi cates with both oral and nasal cavities in the horse [7], cattle [7,25], sheep [3], dog [1,8], cat [ 1 ] and some bat species [24], It communi cates directly with the oral cavity by a duct in the camel [2], In primates, it joins the naso palatine duct and is connected to both oral and nasal cavities in prosimian [12,14,16] and New World simian [13,14] species. In the common marmoset, a New World simian, it also joins the nasopalatine duct as in prosim ian and other New World simian species reported previously.…”

Section: Discussionmentioning

confidence: 99%

“…The occurrence and structure of the vome ronasal organ have been well documented for various vertebrate species [1][2][3][4][5][6][7][8][9][10] following the full description of this organ by Jacobson [11]. For primates, however, there have been only a few detailed reports on the structure of this organ [12,13].…”

Section: Introductionmentioning

confidence: 99%

Fine Structure of the Vomeronasal Organ in the Common Marmoset (Callithrix jacchus)

Taniguchi¹,

Matsusaki²,

Ogawa³

et al. 1992

IJFP

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Anatomical study of the vomeronasal organ and the nasopalatine duct of the one-humped camel

Cited by 10 publications

References 1 publication

Immunohistochemical studies for the neuronal elements in the vomeronasal organ of the one-humped camel

Immunohistochemical studies for the neuronal elements in the vomeronasal organ of the one-humped camel

The vomeronasal organ of the tammar wallaby

Fine Structure of the Vomeronasal Organ in the Common Marmoset (Callithrix jacchus)

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