BGDB Face and Ear - Fetal - Revision history

Z8600021 at 10:57, 12 Mayıs 2019

2019-05-12T10:57:18Z

← Older revision		Revision as of 21:57, 12 Mayıs 2019
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	Auditory neural pathway		Auditory neural pathway
	\|}		\|}

			<br>
			{{BGDB Practical 6 - Fetal Interactive}}
			<br>
			{{BGDB Face}}

	==Additional Information==		==Additional Information==
	{{Med Prac additional Information}}		{{Med Prac additional Information}}

2018-05-17T03:29:11Z

2018-05-13T10:55:00Z

← Older revision		Revision as of 21:55, 13 Mayıs 2018
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	==Hearing==		==Hearing==

	{{Hearing timeline}}		{{Hearing timeline table}}


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	===Secondary Palate - Retinoic acid signalling===		===Secondary Palate - Retinoic acid signalling===

	~~<pubmed>~~27238416~~</pubmed>~~		{{#pmid:27238416}}

	===Fetal Organ of Corti Development===		===Fetal Organ of Corti Development===

2018-05-13T10:34:57Z

← Older revision		Revision as of 21:34, 13 Mayıs 2018
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	==Hearing==		==Hearing==
	* '''Week 9''' - Mesenchyme surrounding membranous labryinth (otic capsule) chondrifies.
	* '''Week 12-16''' - Capsule adjacent to membranous labryinth undegoes vacuolization to form a cavity (perilymphatic space) around membranous labrynth and fills with perilymph.		{{Hearing timeline}}
	* '''Week 18''' - ectodermal plug in external auditory meatus breaks down.
	* '''Week 16-24''' - Centres of ossification appear in remaining cartilage of otic capsule form petrous portion of temporal bone. Continues to ossify to form mastoid process of temporal bone.
	* '''Week 18 - 22''' - Organ of corti structural elements develop. ({{GA}} ~~20 - 24 weeks)~~
	* '''3rd Trimester''' - Vibration acoustically of maternal abdominal wall induces startle response in fetus.

	===Organ of Corti===		===Organ of Corti===

2018-05-13T07:31:00Z

← Older revision		Revision as of 18:31, 13 Mayıs 2018
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	===Organ of Corti===		===Organ of Corti===
	Early fetal cochlea week 8.4 ({{GA}} 10.4) and week 10 ({{GA}} 12)~~<ref name=PMID24131517><pubmed>~~24131517~~</pubmed>~~\| ~~[http://www.neuraldevelopment.com/content/8/1/20 Neural Dev.]</ref>~~		Early fetal cochlea week 8.4 ({{GA}} 10.4) and week 10 ({{GA}} 12){{#pmid:24131517\|PMID24131517}}

	Note Kölliker’s organ (KO), a transient epithelial structure that is the source of the future sensory cells.		Note Kölliker’s organ (KO), a transient epithelial structure that is the source of the future sensory cells.

			<br><br>
	{\|		{\|
	! Week 8.4		! Week 8.4
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			<br><br>
	Adult organ of Corti (mouse) that develops through the fetal period.		Adult organ of Corti (mouse) that develops through the fetal period.
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	:'''Links:''' ~~[[Hearing - Inner Ear Development\|Inner Ear Development]]~~

			:'''Links:''' {{inner ear}}
	===Central Pathway===		===Central Pathway===
	{\|		{\|

2017-05-16T00:56:59Z

← Older revision		Revision as of 11:56, 16 Mayıs 2017
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	{{Med Prac additional Information}}		{{Med Prac additional Information}}

			{{Palate terms}}

	[[File:Fetal palate growth graph.jpg]]		[[File:Fetal palate growth graph.jpg]]

2017-05-16T00:54:38Z

← Older revision		Revision as of 11:54, 16 Mayıs 2017
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	[[File:Fetal palate growth graph.jpg]]		[[File:Fetal palate growth graph.jpg]]

			===Secondary Palate - Retinoic acid signalling===

			<pubmed>27238416</pubmed>

	===Fetal Organ of Corti Development===		===Fetal Organ of Corti Development===

2017-05-16T00:06:26Z

← Older revision		Revision as of 11:06, 16 Mayıs 2017
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	===Fetal Organ of Corti Development===		===Fetal Organ of Corti Development===

	{\|		{\|
	\|-bgcolor="CEDFF2"		\|-bgcolor="CEDFF2"
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	Based on data from PMID 1441991		Based on data from PMID 1441991

			===Historic===

			{{Ref-Mall1906bone}}

2017-05-16T00:04:49Z

← Older revision		Revision as of 11:04, 16 Mayıs 2017
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	==Skull Ossification==		==Skull Ossification==
			{\|
			\| [[File:Mall1906 fig04.jpg\|400px]]
			\| Mesial view of fetal head (CRL 54 mm)

			The centers of the occipital bone surround the foramen magnum.
			* foramen magnum - large oval opening (foramen) in the occipital bone of the skull.

			Behind the maxilla may be seen the palate, the pterygoid, and the alisphenoid in order.
			* pterygoid - a paired bone forming part of the palate lies behind the palatine bones.
			* alisphenoid - a wing-like cartilaginous bone within the skull forms part of the eye socket.
			\|}

	These are 2 views of the same 12 week 92 mm CRL human fetus head, double stained to show both cartilage (blue) and newly-formed bone (red). The head undergoes two different forms of ossification (endochondral and intramembranous) in separate regions of the skull.		These are 2 views of the same 12 week 92 mm CRL human fetus head, double stained to show both cartilage (blue) and newly-formed bone (red). The head undergoes two different forms of ossification (endochondral and intramembranous) in separate regions of the skull.

2017-05-15T23:44:49Z