Template:Hewer1935 table 2: Difference between revisions
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|+ '''Comparison Human and Chick Neural Endings Timeline''' | |+ '''Comparison Human and Chick Neural Endings Timeline''' | ||
|- | |-bgcolor="CEDFF2" | ||
! Striped muscle and tendon | ! Striped muscle and tendon | ||
! Sensory nerve endings | ! Sensory nerve endings | ||
! Motor nerve endings | ! Motor nerve endings | ||
! Human (approximate age) weeks | ! Human (approximate age) weeks | ||
! Chick (Tello) (approximate age) days | ! [[Chicken Development|Chick]] (Tello) (approximate age) days | ||
|- | |- | ||
| Beginning differentiation | | Beginning differentiation | ||
| — | | — | ||
| — | | — | ||
| 7 | | [[Week 7|7]] | ||
| 5 | | 5 | ||
|- | |-bgcolor="F5FAFF" | ||
| Myofibrils appear | | Myofibrils appear | ||
| Colspan=2| Exploratory fibres with bulbous endings penetrate into muscles | | Colspan=2| Exploratory fibres with bulbous endings penetrate into muscles | ||
| 8 | | [[Week 8|8]] | ||
| 6 | | 6 | ||
|- | |- | ||
Line 24: | Line 24: | ||
| - | | - | ||
| 6-7 | | 6-7 | ||
|- | |-bgcolor="F5FAFF" | ||
| Isolated “fat” fibres | | Isolated “fat” fibres | ||
| - | | - | ||
| — | | — | ||
| 10-12 | | [[Week 10|10]]-[[Fetal Development - 12 Weeks|12]] | ||
| 7 | | 7 | ||
|- | |- | ||
Line 35: | Line 34: | ||
| Varicose endings in contact with myotubes | | Varicose endings in contact with myotubes | ||
| - | | - | ||
| 10 | | [[Week 10|10]] | ||
| — | | — | ||
|- | |-bgcolor="F5FAFF" | ||
| Tendon fibres diflerentiate | | Tendon fibres diflerentiate | ||
| — | | — | ||
| — | | — | ||
| 12 | | [[Fetal Development - 12 Weeks|12]] | ||
| 10 | | 10 | ||
|- | |- | ||
| | | | ||
| Beginning Pacinian | | Beginning {{Pacinian corpuscle}} | ||
| — | | — | ||
| 20 | | [[Second Trimester|20]] | ||
| 11 | | 11 | ||
|- | |-bgcolor="F5FAFF" | ||
| Multiplication of myotubes | | Multiplication of myotubes | ||
| — | | — | ||
| - | | - | ||
| 12-22 | | [[Fetal Development - 12 Weeks|12]]-[[Second Trimester|22]] | ||
| 9-13 | | 9-13 | ||
|- | |- | ||
Line 60: | Line 58: | ||
| Spindles differentiate | | Spindles differentiate | ||
| - | | - | ||
| 20 | | [[Second Trimester|20]] | ||
| 12 | | 12 | ||
|- | |-bgcolor="F5FAFF" | ||
| Dissociation of myotubes from one another. Nuclei become peripheral | | Dissociation of myotubes from one another. Nuclei become peripheral | ||
| Spindles become complex | | Spindles become complex | ||
| — | | — | ||
| 22-26 | | [[Second Trimester|22]]-[[Third Trimester|26]] | ||
| 13 | | 13 | ||
|- | |- | ||
| | | | ||
| Pacinian | | {{Pacinian corpuscle}} well developed | ||
| — | | — | ||
| 26-28 | | [[Third Trimester|26]]-[[Third Trimester|28]] | ||
| 15 | | 15 | ||
|- | |-bgcolor="F5FAFF" | ||
| | | | ||
| | | | ||
| Plates begin to differentiate | | Plates begin to differentiate | ||
| 26-28 (very rudimentary except tongue) | | [[Third Trimester|26]]-[[Third Trimester|28]] (very rudimentary except tongue) | ||
| 18 | | 18 | ||
|- | |- | ||
| Data: Hewer (1935)<ref name=Hewer1935>{{Ref-Hewer1935}}</ref> | | colspan=5|Data: Hewer (1935)<ref name=Hewer1935>{{Ref-Hewer1935}}</ref> (human weeks appear to be fertilization age based on CRL) '''Links:''' {{timeline}} | {{chicken}} | {{skeletal muscle}} | ||
|}<noinclude>[[Category:Template]][[Category:Table]][[Category:Historic Embryology]][[Category:1930's]][[Category:Neural]][[Category:Timeline]]</noinclude> | |}<noinclude>[[Category:Template]][[Category:Table]][[Category:Historic Embryology]][[Category:1930's]][[Category:Neural]][[Category:Timeline]]</noinclude> |
Latest revision as of 10:01, 27 June 2018
Striped muscle and tendon | Sensory nerve endings | Motor nerve endings | Human (approximate age) weeks | Chick (Tello) (approximate age) days |
---|---|---|---|---|
Beginning differentiation | — | — | 7 | 5 |
Myofibrils appear | Exploratory fibres with bulbous endings penetrate into muscles | 8 | 6 | |
Great increase of connective tissue. Vast numbers of nuclei | - | - | - | 6-7 |
Isolated “fat” fibres | - | — | 10-12 | 7 |
Varicose endings in contact with myotubes | - | 10 | — | |
Tendon fibres diflerentiate | — | — | 12 | 10 |
Beginning pacinian corpuscle | — | 20 | 11 | |
Multiplication of myotubes | — | - | 12-22 | 9-13 |
Spindles differentiate | - | 20 | 12 | |
Dissociation of myotubes from one another. Nuclei become peripheral | Spindles become complex | — | 22-26 | 13 |
pacinian corpuscle well developed | — | 26-28 | 15 | |
Plates begin to differentiate | 26-28 (very rudimentary except tongue) | 18 | ||
Data: Hewer (1935)[1] (human weeks appear to be fertilization age based on CRL) Links: timeline | chicken | skeletal muscle |
- ↑ Hewer EE. The development of nerve endings in the human foetus. (1935) J Anat. 69(3):369-79. PMID 17104543