Question

(small, stimuli, larget, ransducable)receptor fields correspond to regions of the body that are more sensitive (i.e. fingertips and lips). ( small, stimuli, large, transducable) receptor fields correspond to regions of the body that are less sensitive (i.e. calf, back).

Answer 1

Ques-1:

Receptor fields correspond to regions of the body that are more sensitive i.e. finger tips & lips (skin) ---> possess small somatosensory receptors such as "mechanoreceptors (to perceive temperature), chemoreceptors (to perceive chemicals) & nociceptors (to perceive pain)" finally the perception sensory signals are transduced to the CNS for information processing to show motor activity for the somatosensory stimulus.

Receptor fields correspond to regions of the body that are less sensitive i.e. calf, back ---> The proportion of sensory receptors such as mechano, chemo and nociceptors are lesser in these regions to perceive immediate sensory stimulustherefore, "very low level of stimuli transmitted to the CNS to generate transducable signal for information processing". Therefore, low motor effects will be observed. At the time of injury some people may have neuronal damage that result in complete loss of sensory reception correspond to regions of the body that are less sensitive i.e. calf, back

Explanation:

Cutaneous receptors are the general sensory receptors on the fingertips and lips. The four traditional cutaneous sensations are the touch (tactile), heat, cold and pain. These sensations are perceived by the sensory receptors which are present throughout the skin but are unevenly distributed. Touch (tactile) receptors are prominent in the areas like hands and face, where this sense is most desirable. Some areas of the skin are insensitive to touch because of the lack of touch receptors.

“Nose (nociception) and tongue” are the two of the five special senses in our body. These organs contain chemoreceptors, which respond to a diverse of chemicals present in the food materials and environment. These receptors respond to the chemicals that are dissolved in the mucous only, so dry nose and dry mouth cannot detect the sense. They are functionally different because olfactory receptors sense the smell and gustatory receptors sense the taste.