1. Specificity of response (muller’s law) –
Each type of receptor gives response to a specific sensation. For example, pain receptors give response only to pain sensation. Similarly, touch receptors give response only to touch sensation.
2. Receptor potential---
Stationary depolarization of a receptor, which is nonpropagated & confined within the receptor
If it reaches the threshold, it is propagated as action potential
3. Adaptation (desensitization ) of receptors---
If a receptor is continuously stimulated with the same strength of stimulus, after sometime the receptor stops sending impulses through the afferent nerve.
Rapidly adapting receptor (Phasic receptors) – touch & pressure receptors
Slowly adapting receptors (Tonic receptors) – muscle spindle, pain receptors, cold receptors etc
4. Sensory transduction –
- converts different forms of energy into AP in sensory nerve
1. Specificity of response (muller’s law) – Each type of receptor gives response to a specific sensation. For example, pain receptors give response only to pain sensation. Similarly, touch receptors give response only to touch sensation. 2. Receptor potential---Stationary depolarization of a receptor, which is nonpropagated & confined within the receptorIf it reaches the threshold, it is propagated as action potential 3. Adaptation (desensitization ) of receptors--- If a receptor is continuously stimulated with the same strength of stimulus, after sometime the receptor stops sending impulses through the afferent nerve. Rapidly adapting receptor (Phasic receptors) – touch & pressure receptorsSlowly adapting receptors (Tonic receptors) – muscle spindle, pain receptors, cold receptors etc 4. Sensory transduction – - converts different forms of energy into AP in sensory nerve
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