Term
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Definition
Tactile skin sensation
Deep-tissue sensation
Hearing
Proprioception (sense of own limbs/body) |
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Term
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Definition
Mechanical forces- receptor stretching alters membrane permeability.
a) Stretch receptors of muscles
b) Skin receptors: touch, pain, cold and heat |
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Definition
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Definition
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Definition
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Definition
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Definition
Modify sensory info prior to arrival at processing centers
Active throughout the pathway |
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Term
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Definition
| Communicate sensory info from periphery to CNS |
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Term
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Definition
| Relay sensory input from reflex networks and sensory pathways to the thalamus |
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Term
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Definition
| Communicate sensory information from the thalamus to the cerebral cortex |
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Term
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Definition
| Transmission dependent on nerve fiber characteristics |
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Term
| Dorsal root ganglia Type A |
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Definition
| Largest diameter, myelinated (fastest rate of impulse conduction) |
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Term
| Dorsal root ganglia Type B |
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Definition
| Smaller diameter, myelinated |
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Term
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Definition
| Sensation of pressure, touch, cold sensation, heat, and pain |
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Term
| Type A Alpha and Beta fibers |
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Definition
| Promote inhibitory effects and diminish pain |
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Term
| Dorsal root ganglia Type C |
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Definition
Unmyelinated, smallest diameter
Warm-hot, mechanical, chemical, pain
Slowest conduction rate |
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Term
| The Discriminative Pathway |
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Definition
Communicates sensory information (touch and spatial orientation)
Stimulated by vibration, touch, muscle or joint movement
Two-point discrimination |
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Term
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Definition
| Discriminative pathway allowing the identification of an object based on touch or the location of skin touch in two different areas |
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Term
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Definition
Multiple synapses, slow conduction
Pain, temperature, crude touch, pressure, autonomic responses |
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Term
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Definition
The specific nature of the perception of various stimuli.
-Primary processing in thalamus
-Processing refined in the somatosensory cortex
-Interpretation in the somatosensory association areas |
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Term
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Definition
| Ability to locate SITE of stimulus initiation |
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Term
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Definition
| TOUCH, pressure, vibration |
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Term
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Definition
| THERMOreceptors, cold, warmth, and pain receptors |
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Term
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Definition
Limb/body movement and position sensation
Relies on proprioceptive receptors, muscle spindle receptors, golgi tendon organs, stretch receptors.
Processed in the thalamus and cerebral cortex |
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Term
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Definition
| Pain stimulus originating OUTSIDE of the nervous system |
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Term
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Definition
| Pain stimulus originating WITHIN the nervous system |
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Term
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Definition
| Pain stimulus originating WITHIN the nervous system. |
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