Glossopharyngeal-hypoglossal nerve reflex of the frog in metamorphosis

Hirakawa, Teruyuki; Honda, Eiko; Toyoshima, Kuniaki; Tomo, Soichiro; Nakahara, Satoshi

doi:10.1016/0003-9969(93)90196-s

Search citation statements

Order By: Relevance

Paper Sections

Select...

Methods1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1994

1999

Publication Types

Select...

Article2

Book1

Relationship

Self Cite1

Independent2

Authors

Journals

Cited by 3 publications

(1 citation statement)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Developing bullfrogs, Rana catesbeiana, ranging from metamorphic stage to climax stages A-D (Hirakawa et al, 1993) were used in the present study. Animals of each stage were anesthetized with 0.5% MS-222 (tricaine methanesulfonate, Sigma Chemical Co., St Louis, MO), and their tongues were excised under a dissecting microscope.…”

Section: Methodsmentioning

confidence: 99%

Merkel cells are responsible for the initiation of taste organ morphogenesis in the frog

Toyoshima¹,

Seta²,

Toyono³

et al. 1999

J. Comp. Neurol.

Self Cite

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Merkel cells are responsible for the initiation of taste organ morphogenesis in the frog

Toyoshima¹,

Seta²,

Toyono³

et al. 1999

J. Comp. Neurol.

Self Cite

View full text Add to dashboard Cite

Role of Merkel Cells in the Taste Organ Morphogenesis of the Frog

Toyoshima

1994

Olfaction and Taste XI

View full text Add to dashboard Cite

Reflex Discharges of Hypoglossal Nerve Elicited by Palatal Nerve and Glossopharyngeal Nerve Stimulation in Frogs.

Kajiya

1997

Jpn J Oral Biol

View full text Add to dashboard Cite

Abstract:Reflex discharges of the hypoglossal nerve elicited by electrical stimulation of the palatal nerve (PNS) were compared with those of the same nerve elicited by glossopharyngeal nerve stimulation (GNS) in frogs. The results were as follows: 1. threshold of the stimulation for eliciting discharges was higher in PNS than in GNS, 2. frequency and latency of the PNS-elicited discharges were lower and longer than those of GNS, respectively, 3. the PNS-elicited discharges consisted of one component with short latency, while those of GNS consisted of two components with short and long latencies, respectively, 4. the GNS-elicited discharges were facilitated by conditioning PNS, 5. PNS elicited discharges only in the hyoglossal branch of hypoglossal nerve controlling the tongue as a retractor, while GNS elicited discharges in the hyoglossal branch that functions as a retractor, and in the intrinsic and genioglossal branches as protractors, 6. the PNSand GNS-elicited discharges were similar in characteristics to those elicited by tactile stimulation of the palate and tongue, respectively. These findings suggest that the sensory input from the palatal nerve polysynaptically elicits retraction of the tongue for transport of bolus from the oral cavity into the pharynx, while that of the glossopharyngeal nerve mono-and/or poly-synaptically elicits retraction and protraction of the tongue for bolus transport and rejection, respectively.

show abstract

Glossopharyngeal-hypoglossal nerve reflex of the frog in metamorphosis

Cited by 3 publications

References 10 publications

Merkel cells are responsible for the initiation of taste organ morphogenesis in the frog

Merkel cells are responsible for the initiation of taste organ morphogenesis in the frog

Role of Merkel Cells in the Taste Organ Morphogenesis of the Frog

Reflex Discharges of Hypoglossal Nerve Elicited by Palatal Nerve and Glossopharyngeal Nerve Stimulation in Frogs.

Contact Info

Product

Resources

About