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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Chapter 14 Solutions
Anatomy & Physiology
Ch. 14 - Watch this video...Ch. 14 - Figure 14.9 The basilar membrane is the thin...Ch. 14 - Watch this video...Ch. 14 - Watch this animation...Ch. 14 - Watch this video...Ch. 14 - Watch this video...Ch. 14 - The inability to recognize people by their faces...Ch. 14 - Watch this video...Ch. 14 - Visit this site...Ch. 14 - Watch this video...
Ch. 14 - Watch this video...Ch. 14 - What type of receptor cell is responsible for...Ch. 14 - Which of these cranial nerves is part of the...Ch. 14 - Which submodality of taste is sensitive to the pH...Ch. 14 - Axons from which neuron in the retina make up the...Ch. 14 - What type of receptor cell is involved in the...Ch. 14 - Which of these sensory modalities does not pass...Ch. 14 - Which nucleus in the medulla is connected to the...Ch. 14 - Visual stimuli in the upper-left visual field will...Ch. 14 - Which location on the body has the largest region...Ch. 14 - Which of the following is a direct target of the...Ch. 14 - Which region of the frontal lobe is responsible...Ch. 14 - Which exuapyramidal tract incorporates equilibrium...Ch. 14 - Which region of gray matter in the spinal cord...Ch. 14 - What type of reflex can protect the foot when a...Ch. 14 - What is the name for the topographical...Ch. 14 - The sweetener known as stevia can replace glucose...Ch. 14 - Why does the blind spot from the optic disc in...Ch. 14 - Following a motorcycle accident, the victim loses...Ch. 14 - A pituitary tumor can cause perceptual losses in...Ch. 14 - The prefrontal lobotomy is a drastic—and largely...Ch. 14 - If a reflex is a limited circuit within the...
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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_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_forwardThe cell bodies for somatosensory receptors from the body are located in what structure? the dorsal horn O the dorsal root ganglion the dorsal column the medial lemniscusarrow_forward
- All 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 words is not associated with the spinoreticular tract? pain cutaneous receptors descending tracts dorsal root ganglion all of the above are associatedarrow_forwardNervous System Revew Thalamus Senses smellI Site of visceral function (eg body temp) controls Sensation Hypothalamus Provides precise timing and skeletal muscle contraction Cranial Nerve I Conscious interpretation of environmental stimuli Cerebellum Awareness of changes in environment Perception Sorts, edits, and relays info to cerebral cortexarrow_forward
- 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.arrow_forwardThe sensory system is involved in all except Initiation of reflex movement Initiation of voluntary movement Learning process Initiation of emotional responsearrow_forwardA lesion to the medial lemniscus results in what type of sensory loss? Ipsilateral TPV C1 down Contralateral TPV C1 down Ipsilateral loss of pain and temperature C1 down Ipsilateral loss of pain and temperature L1 down Contralateral TPV and CP proprioception at L1 A lesion to the left anterior corticospinal tract at T3 would result in which of the following loss? Ipsilateral unconscious proprioception from T3 down Contralateral unconscious proprioception from T3 down Ipsilateral unconscious proprioception at T3 Ipsilateral unconscious proprioception from L1 down Contralateral unconscious proprioception from L1 down A lesion of the dorsal root ganglion at L4 would result in which of the following? Ipsilateral loss of all sensation L4 down Ipsilateral loos of all sensation at L4 dermatome Contralateral loss of all sensation at L4 dermatome Contralateral loss of all sensation at L4 down Contralateral loss of touch, pressure, and vibration at L4 A lesion to the lateral…arrow_forward
- Which of the following nerve fibers exhibits EFFERENT nerve function? Group of answer choices: Facial nerve receiving gustatory impulses from the tongue Trochlear nerve activating extraocular muscles Optic nerve carrying photo signals Trigeminal nerve sending pain, touch and temperature sensations from your face to your brainarrow_forwardIf a human suffers a hand amputation as an adult, what will happen to the area of the somatosensory cortex that previously received information from the lost hand? The projections from the hand will still be there, but will be inactive. The projections from the hand will die, and that area of the cortex will be empty. Projections from the face and neighboring limb will expand to control that cortical area. That cortical area will die.arrow_forwardFollowing administration of an opiate drug, "pain signals" are prevented from getting out of the spinal cord via two mechanisms. One inhibits spinal cord neurons that communicate with the parafascicular nucleus of the thalamus. What is the other way that pain signals are stopped? dendro-dendritic synapses that enhance IPSI's in somatosensory neurons. the disinhibition of long axons that start in the spinal cord and influence free nerve endings directly. O a feedback loop to the periaquedictal grey of the midbrain, which enhances neural activity in that area. axo-axonic synapses that prevents somatosensory neurons from releasing neurotransmitter.arrow_forward
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