Template:Sensory Nerve Fibres: Difference between revisions
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| Aฮณ ย || Yes ย || 4-8 ย || 15-40 || Touch, pressure (and gamma motor neurons) || ย | | Aฮณ ย || Yes ย || 4-8 ย || 15-40 || Touch, pressure (and gamma motor neurons) || ย | ||
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| Aฮดย || Thin || 1-5ย || 3-30 || "rapid" pain, crude touch, pressure, temperature || No | | Aฮดย || Thin || 1-5ย || 3-30 || "rapid" pain, crude touch, pressure, temperature. AMH type I for rapid mechanical pain (high heat threshold >53C), AMH type II for rapid heat pain (lower heat threshold 43-47C). || No | ||
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| C || No || 0.3-1.5 || 0.5-2.0 || "slow" pain, touch, pressure temperature (and postganglionic autonomic) || No | | C || No || 0.3-1.5 || 0.5-2.0 || "slow" pain, touch, pressure temperature (and postganglionic autonomic). Polymodal. || No | ||
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Revision as of 06:35, 19 August 2021
- Characteristics of sensory nerve fibres
| Sensory fibre | Myelinated axons | Diameter (ยตm) | Conduction velocity (m/s) | Sensory information | Usefulness of electroneuromyography |
|---|---|---|---|---|---|
| Aฮฑ | Yes | 13-20 | 80-120 | muscle spindle primary endings, golgi tendon organs, touch (and alpha motor neurons) | Yes (H reflex) |
| Aฮฒ | Yes | 6-12 | 33-75 | Discriminative sensitivity to mechanical stimuli (touch, vibration) | Yes (sensory nerve conduction) |
| Aฮณ | Yes | 4-8 | 15-40 | Touch, pressure (and gamma motor neurons) | |
| Aฮด | Thin | 1-5 | 3-30 | "rapid" pain, crude touch, pressure, temperature. AMH type I for rapid mechanical pain (high heat threshold >53C), AMH type II for rapid heat pain (lower heat threshold 43-47C). | No |
| C | No | 0.3-1.5 | 0.5-2.0 | "slow" pain, touch, pressure temperature (and postganglionic autonomic). Polymodal. | No |
