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Ch. 13 The Peripheral Nervous System

Chapter 13, Problem 13.9a

Why is visceral pain often perceived as cutaneous pain?

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Hey, everyone. Let's take a look at this question together when two different sensory information share a neural pathway within the spinal cord, which of the following may happen is it answer choice A? It can result in stronger receptor potential. Answer choice B it can result in a mixing or confusion of signals. Answer choice C it can cancel the signal sent by the receptors or answer choice D none of the above. Let's work this problem out together to try to figure out which of the following answer choices best explains what would happen when two different sensory information share neural pathways within the spinal cord. So in order to solve this question, we have to recall what we have learned about neural pathways within the spinal cord to determine which of the following would happen when we have two different sensory information, sharing the same neural pathway. And looking at our answer choices, we see answer choice A which says it can result in stronger receptor potential, which we know that the receptor potential is influenced by the strength or intensity of an individual stimuli acting on those receptors. So answer choice A would be the result of two of the same sensory stimuli and not two different sensory stimuli. So answer choice A is not possible making it incorrect as well as answer choice C which says that it can cancel the signal sent by the receptors, which we know it's also incorrect. Since the sharing of neural pathways would not result in the cancellation of a signal sent by the receptors and instead would result in an integration or misinterpretation of those sensory signals. So answer choice C is incorrect. And lastly answer choice B which says that it can result in a mixing or confusion of signals, which we know that when we have two different sensory information signals sharing a pathway, it can lead to a mixing or confusion of signals since we have two different signals sharing that same pathway. So answer choice B is the correct answer and all other answer choices are incorrect. I hope you found this video to be helpful. Thank you and goodbye.
Related Practice
Textbook Question

Match the following nerves with the structures they innervate.     


____Phrenic nerve     

____Median nerve     

____Femoral nerve     

____Tibial nerve     

____Radial nerve     

____Intercostal nerves     

____Common fibular nerve     

____Musculocutaneous nerve


a. Motor to the triceps brachii muscle and muscles in the forearm that extend the hand; sensory from the posterior hand

b. Motor to the muscles in the anterior arm that flex the forearm; sensory from skin over the lateral forearm

c. Motor to the muscles in the anterior and lateral leg that evert and dorsiflex the foot; sensory from the skin of the anteroinferior leg

d. Motor to the diaphragm muscle

e. Motor to the muscles in the anterior thigh extend the knee; sensory from the skin over the anterior thigh and leg

f. Motor to the hamstring muscles that extend the thigh and flex the leg, muscles of the leg that plantarflex the foot, and muscles of the foot; sensory from the skin over the posterior and lateral leg and foot

g. Motor to the muscles between the ribs and the abdominal muscles; sensory from the skin over the abdomen

h. Motor to the muscles in the forearm that flex the hand, certain intrinsic hand muscles; sensory from the skin of the anterior hand

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Textbook Question

First-order somatic sensory neurons are_____neurons whose cell bodies are located in the_____.​​


a. multipolar, posterior horn

b. pseudounipolar, posterior root ganglion

c. bipolar, anterior horn

d. pseudounipolar, posterior horn

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Textbook Question

A receptor potential:


a. always leads to an action potential.

b. never leads to an action potential.

c. causes hyperpolarization of the neuron.

d. leads to an action potential if the stimulus is strong enough.

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Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.


b. Thermoreceptors send temperature information to centers in the hypothalamus.

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