Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 14, Problem 26RQ
What is the name for the topographical representation of the sensory input to the somatosensory cortex?
- homunculus
- homo sapiens
- postcentral gyms
- primary cortex
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What is the name for the topographical representationof the sensory input to the somatosensory cortex?a. homunculusb. homo sapiensc. postcentral gyrus
d. primary cortex
the primary somatosensory cortex is located in the ............ gyrus
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a. precentraly
b. central
c. cingulate
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Which of the following body regions has the greatest representation in the somatosensory cortex?
Chapter 14 Solutions
Anatomy & Physiology
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- In the ___, neurons are arranged like maps that correspond to different parts of the body surface. a. retina b. somatosensory cortex c. basilar membrane d. occipital lobearrow_forwardWhich of the special senses is based on the following events? Membrane vibrations cause fluid movements, which lead to bending of mechanoreceptors and firing of action potentials. a. taste b. smell c. hearing d. visionarrow_forwardA sensory system is composed of __________. a. nerve pathways from specific receptors to the brain b. sensory receptors c. brain regions that deal with sensory information d. all of the abovearrow_forward
- ___ is defined as a decrease in the response to an ongoing stimulus. a. Perception b. Visual accommodation c. Sensory adaptiltion d. Somatic sensationarrow_forwardWatch this video (http://openstaxcollege.org/l/neuroexam) that provides a demonstration of the neurological exam—a series of tests that can be performed rapidly when a patient is initially brought into an emergency department. The exam can be repeated on a regular basis to keep a record of how and if neurological function changes over time. In what order were the sections of the neurological exam tested in this video, and which section seemed to be left out?arrow_forward____________ is understanding what particular sensations mean.arrow_forward
- Watch this video (http://openstaxcollege.org/l/occipital) to learn more about a transverse section through the brain that depicts the visual pathway from the eye to the occipital cortex. The first half of the pathway is the projection from the RGCs through the optic nerve to the lateral geniculate nucleus in the thalamus on either side. This first fiber in the pathway synapses on a thalamic cell that then projects to the visual cortex in the occipital lobe where seeing, or visual perception, takes place. This video gives an abbreviated overview of the visual system by concentrating on the pathway from the eyes to the occipital lobe. The video makes the statement (at 0:45) that specialized cells in the retina called ganglion cells convert the light rays into electrical signals. What aspect of retinal processing is simplified by that statement? Explain your answer.arrow_forwardThe sensory system is involved in all the following, except :-a- initiation of reflex movementsb- initiation of voluntary movementsc- learning processesd- initiation of emotional responsesarrow_forwardWhat are the main pathway(s) for immediate reaction to something that is suspicious? Descending auditory cortico-thalamic pathway to the basilar nucleus Ascending retina-thalamic pathways to the amygdala Ascending dorso-medial thalamic sensory pathways to the amygdala Superior colliculus to the mastication musclesarrow_forward
- The posteroventral nucleus of the thalamus projects to all the following centers, except :-a- frontal motor areasb- primary somatic sensory areac- somatic sensory association aread- parieto-occipito-temporal association areaarrow_forwardAll sensory organs relay information through the thalamus but not in the same way. How does the pathways of information from sensory organs to the primary sensory vortices and organization differ between the 3 systems? How are they the same? You may focus on one of the somatosensory pathways (touch or pain/ temp)arrow_forwardWhich of the following is a structure that is not involved in the maintenance of balance and equilibrium? Eyes Proprioceptors from joints and muscles Cerebellum Vestibular apparatus Nonearrow_forward
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