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Human senses include;
Sense
Sense
Sense
Sense
Sense
of
of
of
of
of
Hearing
Sight
Smell
Taste
Touch
Preksha Dhyana:
Sense Receptors
The body's sense reeeptors are the peripheral endings of functional dendrites of sensory neurons. Each receptor is specialized to respond to a particular type of stimuli. Modality of Sensation and Adaptation
Sensation is the conscious result of the sequence: stimulus-receptor-conducting pathway-sensory area in
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the brain,
All main types of sensation-sight, sound, etc. are produced by nerve fibres that transmit impulses. Those from the ear are connected by pathways to auditory area; those from the retina terminate in the vision area; and touch fibres to specific touch areas in the brain. Thus we actually perceive all sensations in the brain.
Intensity of a sensation is directly proportional to the strength of the stimulus. Our receptors operate efficiently over a wide range of intensities. For example, we can hear a barely audible whisper and can also distinguish the words blaring out of a loudspeaker.
When a stimulus of constant intensity, continues to act on a receptor, it 'adapts' to the stimulus decreasing the frequency of the response. Thus in a swimming pool, at first the water may feel cold but soon it will feel comfortable
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