Question

In: Anatomy and Physiology

which regions of the body have a greater percentage of sensory receptors ?

which regions of the body have a greater percentage of sensory receptors ?

Solutions

Expert Solution

There are 5 basic sensory receptor endings which are distributed in human body. These receptors are categorized as thermoreceptors, mechanoreceptors, nociceptors, photoreceptors and chemoreceptors. The five sense organs, that is, the skin, eyes, ears, nose and tongue are the areas where sensory receptors are more because they send the stimulus to the brain and the spinal cord. In the face, the tongue and lips are sensitive to external stimulus, while in the hands, the finger tips and elbows have more sensory neurons than other regions. The genital regions also have more sensory cells as compared to the surrounding regions of the body.

All senses work in basically the same way. Sensory receptors are specialized cells that collect information from the environment, so naturally, they will be found in greater number in the sense organs, as stated above, and in those parts of the body which are more sensitive to stimulus.


Related Solutions

Trace the sensory pathway from the receptors of the skin to the sensory area of the...
Trace the sensory pathway from the receptors of the skin to the sensory area of the cerebrum. Trace the motor pathway from the motor area of the cerebrum to the muscles. Please type answers, I'm awful at reading others handwriting.
There is quite a bit of research which indicates that a greater percentage of the American...
There is quite a bit of research which indicates that a greater percentage of the American population is overweight and/or obese. Discuss why you believe that this is true or not and list some reasons for your conclusion.
1) What are the four types of sensory receptors for the general senses? What is the...
1) What are the four types of sensory receptors for the general senses? What is the nature of the stimuli that excite each type? 2) Jake steps on a piece of ice with his right foot. Outline the pathway this sensation will travel to reach his brain being specific about the structures along the way. 3) What are differences and similarities between "crude" touch and "fine" touch sensations? 4) How can an understanding of the neurotransmitters important in the function...
Which regions do women have relatively high status (low GII) and why? In which regions do...
Which regions do women have relatively high status (low GII) and why? In which regions do women have low status and why? In what areas are American women better off or similar to their Western European counterparts? In which areas are they worse off?
What are two examples of visceral sensory receptors in the ANS. What stimuli do they measure...
What are two examples of visceral sensory receptors in the ANS. What stimuli do they measure and what responses by the CNS do they elicit.
(i) What role does the sensory qualities of food have in determining body weight regulation (60%),...
(i) What role does the sensory qualities of food have in determining body weight regulation (60%), (ii) outline key differences in the sensory perception of nutrients between lean and obese individuals (20%), consider additional clinical situations where sensory perception may be lost and what effects this might have on metabolism (20%).
1. Which receptors have a narrow temperature range in which a tonic response is invoked? Which...
1. Which receptors have a narrow temperature range in which a tonic response is invoked? Which receptors have a broader range? 2. What are transient receptor potential (TRP) ion channels? What do they do? What does the phrase ‘firing threshold’ mean? 3. Which parts of the brain are involved in cooling the body? Which parts are involved in warming the body? Be specific as to which segments of the particular brain structure is affected.
True or False (circle one): Hyperactivation (i.e. extreme activation) of sensory receptors like Meisner’s corpuscles or...
True or False (circle one): Hyperactivation (i.e. extreme activation) of sensory receptors like Meisner’s corpuscles or Merkel’s discs allows for nociceptive information to be conducted to the primary sensory cortex. Explain your answer to the question immediately above. If the answer is true, explain how these receptors use graded potentials to differentiate between touch and nociception. If the answer is false, explain how touch and nociceptive stimuli activate different structures and/or channels in their respective axons. Please give examples for...
(i) Which security has greater total risk? Which has greater systematic risk? Which has greater unsystematic risk? Which security will have a higher risk premium?
(i) Which security has greater total risk? Which has greater systematic risk? Which has greater unsystematic risk? Which security will have a higher risk premium?(ii) Construct a two-asset equally weighted portfolio is minimising the overall risk. What is the portfolio's Beta? What is the standard deviation of the portfolio?(iii) Calculate the Sharpe ratios for the three securities and the equally weighted portfolio in part ii. Is it possible to build a two-asset equally weighted portfolio with a higher Sharpe ratio...
1. Describe the 2 major body regions of a typical mollisk? 2. Annelids exhibit body segmentation....
1. Describe the 2 major body regions of a typical mollisk? 2. Annelids exhibit body segmentation. why is this a major evolutionary innovation? 3. Why are insects so successful??
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT