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Nostril Position in Dinosaurs and Other Vertebrates and its Significance for Nasal Function
- Science
, 2001
"... Many dinosaurs have enormous and complicated bony nasal apertures. Func-tional interpretation requires knowledge of the location of the external opening in the skin. Traditionally, the ßeshy nostril of dinosaurs has been placed in the back of the bony opening, but studies of extant dinosaur relative ..."
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relatives suggest that it is located far forward. Narial blood supply and cavernous tissue corroborate the rostral position in dinosaurs. A rostral nostril was, and remains, a virtually invariant rule of construction among Amniota, which has consequences for (i) nasal airstreaming, and hence various
Cerebral Activation to Intranasal Chemosensory Trigeminal Stimulation
"... Although numerous functional magnetic resonance imaging (FMRI) studies have been performed on the processing of olfactory information, the intranasal trigeminal system so far has not received much attention. In the present study, we sought to delineate the neural correlates of trigeminal stimulation ..."
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stimulation using carbon dioxide (CO2) presented to the left or right nostril. Fifteen right-handed men underwent FMRI using single runs of 3 conditions (CO2 in the right and the left nostrils and an olfactory stimulant—phenyl ethyl alcohol—in the right nostril). As expected, olfactory activations were
Gross morphological features of the nasal cavity in the Japanese quail
"... Summary: This study aimed to document the detailed features of the nasal cavity in Japanese quail (Coturnix coturnix japonica) by the use of ten mature quails. The heads of the birds were sectioned slightly paramedially and transversally in rostro-caudal sequence. Then, sections were placed in 0.1 % ..."
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.1 % methylene blue for 15 min followed by 50 % and 70 % ethyl alcohol series, respectively. The nasal cavity was formed rostrally by the nostrils which were two narrow longitudinal openings located at the upper part of the base of the beak. They were Nares perviae, a kind of open nares type. The choana
unknown title
"... uous dry forest on a karstic underground in the far north of Madagascar. The new gecko species is relatively large (up to 80.6 mm snout-vent length and 156.1 mm total length) and has blackish markings on the head which can form a vermiculated pattern. It is further characterized by having the nostri ..."
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the nostril excluded from contact with the rostral scale, distinctly enlarged and spinous tubercles on the dorsal surface, and specific colouration of juveniles and adults. The relationships of the new species are obscure: Based on the nostril position, P. lohatsara belongs to the phe-netic Paroedura picta
unknown title
"... A10-month-old, Limousin-cross feedlot heifer waspresented for chronic bloat (day 1). The heifer, purchased from a local sales barn 1 wk earlier, was first noticed to be bloated 2 d before presentation. The owner had administered dioctyl sodium sulphosuccinate (Bloat-Aid; Citadel Animal Health, Cambr ..."
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, Cambridge, Ontario), 300 mL, PO. The bloat was refractory to this treat-ment, and the owner sought veterinary assistance. The heifer and her pen mates were in good body condition and of similar size. However, she had a dis-tended left paralumbar fossa and dried blood on the right nostril. Closer examination
Ossifying fibroma in a llama
"... Abstract. A 4.5-year-old llama was admitted for evaluation of a firm mass rostral and ventral to the medial canthus of the left eye. Mucopurulent nasal discharge and absence of airflow through the left nostril were noted. Radiographs of the skull revealed a sharply demarcated soft tissue mass with f ..."
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Abstract. A 4.5-year-old llama was admitted for evaluation of a firm mass rostral and ventral to the medial canthus of the left eye. Mucopurulent nasal discharge and absence of airflow through the left nostril were noted. Radiographs of the skull revealed a sharply demarcated soft tissue mass
Metastatic malignant melanoma in an alpaca (Vicugna pacos)
"... Abstract. A case of malignant melanoma in a 7-year-old, intact, black, male Huacaya alpaca with a history of a chronic, nonhealing wound involving the left external nostril, weight loss, and inappetence is described. Malignant melanoma was diagnosed by histology of punch biopsy specimens from a mass ..."
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Abstract. A case of malignant melanoma in a 7-year-old, intact, black, male Huacaya alpaca with a history of a chronic, nonhealing wound involving the left external nostril, weight loss, and inappetence is described. Malignant melanoma was diagnosed by histology of punch biopsy specimens from a
A New Blind Loach Triplophysa lihuensis sp. nov. (Teleostei: Balitoridae) from Guangxi, China
, 2012
"... described based on 5 specimens collected from a cave in Renguang Village, Lihu Town, Nandan County, Guangxi, China. It is distinguished from all other congeneric species by having the following combination of characters: eyes and scales absent; lips with furrows; outer rostral barbel 42.9%-54.5 % of ..."
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described based on 5 specimens collected from a cave in Renguang Village, Lihu Town, Nandan County, Guangxi, China. It is distinguished from all other congeneric species by having the following combination of characters: eyes and scales absent; lips with furrows; outer rostral barbel 42
