Template:Hewer1935 table 2: Difference between revisions
From Embryology
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| Isolated “fat” fibres | | Isolated “fat” fibres | ||
| - | | - | ||
| — | | — | ||
| 10-12 | | 10-12 | ||
| Line 37: | Line 36: | ||
| 10 | | 10 | ||
| — | | — | ||
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| Tendon fibres diflerentiate | | Tendon fibres diflerentiate | ||
| — | | — | ||
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| 20 | | 20 | ||
| 11 | | 11 | ||
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| Multiplication of myotubes | | Multiplication of myotubes | ||
| — | | — | ||
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| 20 | | 20 | ||
| 12 | | 12 | ||
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| Dissociation of myotubes from one another. Nuclei become peripheral | | Dissociation of myotubes from one another. Nuclei become peripheral | ||
| Spindles become complex | | Spindles become complex | ||
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| 26-28 | | 26-28 | ||
| 15 | | 15 | ||
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Revision as of 09:29, 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 bodies | — | 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 bodies well developed | — | 26-28 | 15 | ||
| Plates begin to differentiate | 26-28 (very rudimentary except tongue) | 18 | |||
| Data: Hewer (1935)[1] | |||||
- ↑ Hewer EE. The development of nerve endings in the human foetus. (1935) J Anat. 69(3):369-79. PMID 17104543
