Sensory - Taste Development: Difference between revisions
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==Introduction== | ==Introduction== | ||
[[File:Tongue_-_taste_cartoon.jpg|thumb|300px|Tongue taste map<ref><pubmed>17108952</pubmed></ref>]] | [[File:Tongue_-_taste_cartoon.jpg|thumb|300px|Tongue taste map<ref><pubmed>17108952</pubmed></ref>]] | ||
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A study in rat suggests that neonatal changes in circumvallate papillae may result in postnatal changes in "taste".<ref><pubmed>11474141</pubmed></ref> In frogs, a large taste disc (TD) is the largest vertebrate gustatory organ. Postnatally, the sense of taste is also closely related to the sense of smell. | A study in rat suggests that neonatal changes in circumvallate papillae may result in postnatal changes in "taste".<ref><pubmed>11474141</pubmed></ref> In frogs, a large taste disc (TD) is the largest vertebrate gustatory organ. Postnatally, the sense of taste is also closely related to the sense of smell. | ||
:{{Template:Senses Links}} | {{Taste Links}} | ||
:{{Template:Senses Links}} | |||
== Some Recent Findings == | == Some Recent Findings == | ||
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[ | Search term: [http://www.ncbi.nlm.nih.gov/pubmed/?term=Taste+Development ''Taste Development''] | ||
<pubmed limit=5>Taste+Development</pubmed> | |||
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==Development Timing== | ==Development Timing== | ||
These are human embryonic timings<ref><pubmed>8955790</pubmed></ref>, not clinical which is based on last menstral period +2 weeks (GA). | These are human embryonic timings<ref><pubmed>8955790</pubmed></ref>, not clinical which is based on last menstral period +2 weeks (GA). |
Revision as of 09:20, 11 February 2014
Embryology - 18 May 2024 Expand to Translate |
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Introduction
These notes introduce the development of the sense of taste which can divided into five basic tastes: bitter, salty, sweet, umami (savoury) and sour. Current research appears to have displaced the historic concept of a tongue "map".
A study in rat suggests that neonatal changes in circumvallate papillae may result in postnatal changes in "taste".[3] In frogs, a large taste disc (TD) is the largest vertebrate gustatory organ. Postnatally, the sense of taste is also closely related to the sense of smell.
Taste Links: Introduction | Student project | Tongue Development | Category:Taste | ||
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Senses Links: Introduction | placode | Hearing and Balance hearing | balance | vision | smell | taste | touch | Stage 22 | Category:Sensory |
Some Recent Findings
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More recent papers |
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This table allows an automated computer search of the external PubMed database using the listed "Search term" text link.
More? References | Discussion Page | Journal Searches | 2019 References | 2020 References Search term: Taste Development <pubmed limit=5>Taste+Development</pubmed> |
Development Timing
These are human embryonic timings[8], not clinical which is based on last menstral period +2 weeks (GA).
Week 6 - gustatory papilla, caudal midline near the foramen caecum
Week 6-7 - nerve fibers approach the lingual epithelium
Week 8 - nerves penetrate epitheilai basal lamina and synapse with undifferentiated, elongated, epithelial cells (taste bud progenitor cell)
Week 10 - shallow grooves above the taste bud primordium
Week 12 - first differentiated epithelial cells (Type II and III)
Week 12 -13 - maximum synapses between cells and afferent nerve fibers
Week 14 - 15 - taste pores develop, mucous
Week 18 - substance P detected in dermal papillae, not in taste bud primordia
3rd Trimester -
Tongue Development
Gustatory cranial sensory neurons
Cranial nerves VII, IX and X have dual embryonic origins and provide both gustatory (taste) and non-gustatory (touch, pain, temperature) sensory innervation to the oral cavity of vertebrates.
Gustatory Neurons
- originate from epibranchial placodes
- innervate taste buds
- project centrally to the rostral nucleus of the solitary tract (NTS)
General Epithelial Innervation of the oral cavity
- originate from cranial neural crest
- innervation to the oropharynx
- project to non-gustatory hindbrain regions (spinal trigeminal nucleus)
(text based on: Embryonic origin of gustatory cranial sensory neurons.[9])
Stage 22
Section (B4) through head showing tongue and head structures.
References
- ↑ <pubmed>17108952</pubmed>
- ↑ <pubmed>17903280</pubmed>
- ↑ <pubmed>11474141</pubmed>
- ↑ <pubmed>23467090</pubmed>| Nature
- ↑ <pubmed>23182899</pubmed>
- ↑ <pubmed>21655085</pubmed>| PMC3107195 | http://www.plosgenetics.org/article/info%3Adoi%2F10.1371%2Fjournal.pgen.1002098 PLoS Genetics]
- ↑ <pubmed>19363153</pubmed>
- ↑ <pubmed>8955790</pubmed>
- ↑ <pubmed>17826760</pubmed>
Reviews
<pubmed>21184814</pubmed> <pubmed>20696704</pubmed>| JCB
Articles
Search PubMed
Search May 2010
- Taste System Development - All (320) Review (64) Free Full Text (78)
- Tongue Development - All (2804) Review (258) Free Full Text (519)
Search Pubmed: Taste System Development | Tongue Development
Additional Images
- Tongue Images: Tongue Sk Muscle | Salivary gland sk muscle HE | Unlabeled Salivary gland sk muscle HE | Filiform papillae HE | circumvallate papilla VG | circumvallate papilla HE | Taste buds VG
Glossary Links
- Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link
Cite this page: Hill, M.A. (2024, May 18) Embryology Sensory - Taste Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Sensory_-_Taste_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G