Like all general sensory pathways, the dorsal column pathway has three neurons. The cell body of the first-order neuron is located in the dorsal root ganglion. The decussation of this pathway is performed by the [ Select ] . As with all general sensation pathways, the second order neuron synapses in the (Select ] + where a lot of processing occurs. The answer to the previous question is part of the [Select] part of the CNS. The awareness you have of the location of this sensation is due to the [Select]

Like all general sensory pathways, the dorsal column pathway has three neurons. The cell body of the first-order neuron is located in the dorsal root ganglion. The decussation of this pathway is performed by the [ Select ] . As with all general sensation pathways, the second order neuron synapses in the (Select ] + where a lot of processing occurs. The answer to the previous question is part of the [Select] part of the CNS. The awareness you have of the location of this sensation is due to the [Select]

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter6: The Peripheral Nervous System: Afferent Division; Special Senses

Section: Chapter Questions

Problem 13RE

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Similar questions

Larry goes to the doctor complaining that he cant see the right side of the visual field with either eye. Where in the visual signal-processing pathway is Larrys problem occurring?
Receptor cells that are neurons with sensory dendrites are faster than receptor cells that are separate from neurons. Why is that, and why might that be important in, for example, the sense of touch versus vision?
In the process of sensory coding Recruitment of additional neurons occurs with a weak stimulus in order to make the stimulus stronger. The larger the receptive field of a sensory receptor, the greater the expected acuity and the more accurate the two-point discrimination. Lateral inhibition of neighboring receptors resulting in a relative reduction of action potentials in the neighboring second order neurons would be expected to increase acuity. A receptor potential that remains suprathreshold into the absolute refractory period will result in additional action potentials.
We discussed three principles with regards to the sensory cortex (mechanisms of perception), with one of them being a hierarchical organization. Using the somatosensory system as an example (specifically the exteroceptive part of that system), state each level of the hierarchy with regards to this system, beginning with the one at the lowest level of the hierarchy to the final uppermost level. give the name at each level as it corresponds with this system.
Applying a pressure stimulus to the fluid-filled capsule of an isolated Pacinian corpuscle causes a brief burst of action potentials in the afferent neuron, which ceases until the pressure is removed, at which time another brief burst of action potentials occurs. If an experimenter removes the capsule and applies pressure directly to the afferent neuron ending, action potentials are continuously fired during the stimulus. Explain these results in the context ofadaptation.
A psychophysical colour match between two patches of light that have different sets of wavelengths is known as ______. Question 18 options: a metamer a subtractive colour match an additive colour match a photon equivalence Which of the following accurately describes the ascending pathway for auditory information? Question 33options: Medial geniculate nucleus to inferior colliculus to auditory cortex. Auditory cortex to inferior colliculus to medial geniculate nucleus. Auditory cortex to medial geniculate nucleus to inferior colliculus. Inferior colliculus to medial geniculate nucleus to auditory cortex.
Which of the following structures does not receive direct input from retinal ganglion cells? a. Primary visual cortex b. The suprachiasmiatic nucleus (SCN) in the hypothalamus c. The superior colliculus in the tectum d. The lateral geniculate nucleus (LGN) in the thalamus The Glossopharyngeal nerve (cranial nerve IX) is a “mixed nerve,” meaning that it carries sensory and motor information. One of the functions of this nerve is carrying taste information from the caudal third of the tongue. The fibers that carry this information in the glossopharyngeal nerve are classified as which component type? a. Special efferent b. Special afferent c. General visceral efferent d. General somatic afferent
What aspect of the neural circuity in the pupillary light reflex is responsible for the consensual response? a. Preganglionic parasympathetic neurons project their axons to neurons in the ciliary ganglion. b.Pretectum neurons send axons to the Edinger-Westfall nuclei on both sides of the brain. c. Neurons in the ciliary ganglion innervate the constrictor muscle in the iris, which decreases the diameter of the pupil when activated. d. The muscles in the iris encircle the pupillary opening so that light enters in the center of the eye. e. The ciliary muscles contract concentrically to release the tension in the zonule fibers.
Based upon stimulus origin, would a cutaneous pain receptor beclassified as an exteroceptor, an interoceptor, or a proprioceptor?Based upon receptor distribution, would this same cutaneousreceptor be classified as a general somatic, general visceral, orspecial sense? Finally, how would this pain receptor in the skinbe classified based upon modality of stimulus?
What are characteristic for the ascending sensory pathways: Non-classical pathways use ventral and medial nuclei in the thalamus The thalamus in classical pathways project directly to the lateral nucleus of the amygdala. The thalamus in classical pathways project to primary sensory cortices. Non-classical pathways do not activate the autonomic nervous system.
Some somatic senses are fast-adapting and others are slow-adapting. Two different types of receptors are listed below. Explain the advantage using an example, for it to be slow or fast. Then explain, using an example, for why it would be harmful if it was the opposite type. Temperature receptor for cold temperatures, fast-adapting 2.Muscle-spindle proprioceptor, slow-adapting
Which is true regarding somatotopic organization? Select one: a. Certain areas of the body have much higher representation in the primary somatosensory cortex than other areas, and these regions will have finer tactile discrimination. b. The representation of a given area of the body in the primary somatosensory cortex is directly proportional to the size of that body area (e.g., the right index finger has less representation than the right thigh). c. The receptive fields for somatosensory neurons are circular and relatively consistent in size across areas of the body, but areas of the body with the finest tactile discrimination have many more neurons representing them in the primary somatosensory cortex. d. There is equal representation of all areas of the body in the primary somatosensory cortex