Template:Hearing timeline: Difference between revisions
From Embryology
(Created page with "{| |+ Hearing Timeline |- ! Stage ! Event |- | Week 9 | Mesenchyme surrounding membranous labryinth (otic capsule) chondrifies. |- | Week 12-16 | Capsule adjacent to membranou...") |
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{| | {| | ||
|+ Hearing Timeline | |+ Colspan=2|Hearing Timeline | ||
|- | |-bgcolor="CEDFF2" | ||
! Stage | ! Stage | ||
! Event | ! Event | ||
| Line 7: | Line 7: | ||
| Week 9 | | Week 9 | ||
| Mesenchyme surrounding membranous labryinth (otic capsule) chondrifies. | | Mesenchyme surrounding membranous labryinth (otic capsule) chondrifies. | ||
|- | |-bgcolor="F5FAFF" | ||
| Week 12-16 | | Week 12-16 | ||
| Capsule adjacent to membranous labryinth undegoes vacuolization to form a cavity (perilymphatic space) around membranous labrynth and fills with perilymph. | | Capsule adjacent to membranous labryinth undegoes vacuolization to form a cavity (perilymphatic space) around membranous labrynth and fills with perilymph. | ||
| Line 13: | Line 13: | ||
| Week 18 | | Week 18 | ||
| ectodermal plug in external auditory meatus breaks down. | | ectodermal plug in external auditory meatus breaks down. | ||
|- | |-bgcolor="F5FAFF" | ||
| Week 16-24 | | 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. | | 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. | ||
| Line 19: | Line 19: | ||
| Week 18 - 22 | | Week 18 - 22 | ||
| Organ of corti structural elements develop. ({{GA}} 20 - 24 weeks) | | Organ of corti structural elements develop. ({{GA}} 20 - 24 weeks) | ||
|- | |-bgcolor="F5FAFF" | ||
| 26 weeks | | 26 weeks | ||
| human brainstem auditory pathway is anatomically formed. | | human brainstem auditory pathway is anatomically formed. | ||
| Line 25: | Line 25: | ||
| 28 weeks | | 28 weeks | ||
| AABR can be recorded. | | AABR can be recorded. | ||
|- | |-bgcolor="F5FAFF" | ||
| 3rd Trimester | | 3rd Trimester | ||
| Vibration acoustically of maternal abdominal wall induces startle response in fetus. | | Vibration acoustically of maternal abdominal wall induces startle response in fetus. | ||
|- | |||
| Colspan=2|'''Links:''' {{hearing}} | {{timeline}} | |||
|}<noinclude>[[Category:Template]][[Category:Timeline]][[Category:Hearing]][[Category:Third Trimester]][[Category:Fetal]]</noinclude> | |}<noinclude>[[Category:Template]][[Category:Timeline]][[Category:Hearing]][[Category:Third Trimester]][[Category:Fetal]]</noinclude> | ||
Revision as of 20:41, 13 May 2018
| Stage | Event |
|---|---|
| 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. |
| 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) |
| 26 weeks | human brainstem auditory pathway is anatomically formed. |
| 28 weeks | AABR can be recorded. |
| 3rd Trimester | Vibration acoustically of maternal abdominal wall induces startle response in fetus. |
| Links: hearing | timeline | |
