Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Chapter 12, Problem 14CYR
Which parts of the body have the greatest amount of space dedicated to them in the primary somatosensory cortex? Why?
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Which parts of the body have the greatest amount of space dedicated to them in the primary somatosensory cortex?Why?
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Chapter 12 Solutions
Human Anatomy & Physiology
Ch. 12.1 - What types of functions are performed by the CNS?Ch. 12.1 - Prob. 2QCCh. 12.1 - Prob. 3QCCh. 12.1 - 4. What is the neural tube?
Ch. 12.1 - Prob. 5QCCh. 12.2 - Prob. 1QCCh. 12.2 - Prob. 2QCCh. 12.2 - Which component of the diencephalon performs each...Ch. 12.2 - Describe the basic anatomical arrangement of the...Ch. 12.2 - What is the primary function of the cerebellum?
Ch. 12.2 - Prob. 6QCCh. 12.2 - Prob. 7QCCh. 12.2 - What are the general functions of the reticular...Ch. 12.3 - 1. What are the three meninges, from superficial...Ch. 12.3 - 2. What are the three spaces (potential and...Ch. 12.3 - Prob. 3QCCh. 12.3 - Prob. 4QCCh. 12.3 - 5. What two factors create the blood brain...Ch. 12.3 - Prob. 6QCCh. 12.4 - Prob. 1QCCh. 12.4 - List and describe the three spinal meninges.Ch. 12.4 - Prob. 3QCCh. 12.4 - Prob. 4QCCh. 12.4 - What is the cauda equina?Ch. 12.4 - Prob. 6QCCh. 12.4 - Prob. 7QCCh. 12.4 - Prob. 8QCCh. 12.5 - 1. Where are the posterior columns and their two...Ch. 12.5 - Prob. 2QCCh. 12.5 - How are touch and pain processed by the cerebral...Ch. 12.5 - 4. How is the processing of olfactory stimuli...Ch. 12.6 - What is the main difference between the...Ch. 12.6 - Where do the fibers of the corticospinal tracts...Ch. 12.6 - Where do upper motor neurons reside, and what are...Ch. 12.6 - What are the two parts of the basal nuclei...Ch. 12.6 - What is the overall function of the cerebellum?Ch. 12.6 - Trace the overall voluntary movement pathway from...Ch. 12.7 - Which two body systems coordinate the maintenance...Ch. 12.7 - Which branch of the PNS controls most of the bodys...Ch. 12.7 - Prob. 3QCCh. 12.7 - Prob. 4QCCh. 12.7 - Prob. 5QCCh. 12.7 - What type of rhythm does human sleep follow?...Ch. 12.7 - 7. What is an electroencephalogram? What is the...Ch. 12.8 - 1. What is cognition? Which part of the brain is...Ch. 12.8 - What is cerebral lateralization? Which functions...Ch. 12.8 - 3. Define language in the context of neurology....Ch. 12.8 - Explain the differences between declarative memory...Ch. 12.8 - 5. How do immediate, short-term, and long-term...Ch. 12.8 - Prob. 6QCCh. 12 - The central nervous system is responsible for: a....Ch. 12 - Mark the following statements about the brain as...Ch. 12 - Prob. 3CYRCh. 12 - 4. Which statement about cerebral white matter is...Ch. 12 - Mark the following statements about the cerebral...Ch. 12 - Prob. 6CYRCh. 12 - 7. Match the term on the left with its correct...Ch. 12 - Which statement about the cranial meninges is...Ch. 12 - Prob. 9CYRCh. 12 - Prob. 10CYRCh. 12 - Mark the following statements about the spinal...Ch. 12 - Which of the following somatic sensations is not...Ch. 12 - Fill in the blanks: The tracts of the posterior...Ch. 12 - Which parts of the body have the greatest amount...Ch. 12 - Which of the following statements is false? a. The...Ch. 12 - Fill in the blanks: The cell bodies of upper motor...Ch. 12 - Label the following components of the...Ch. 12 - Mark the following statements on the role of the...Ch. 12 - 19. Fill in the blanks: The two components of the...Ch. 12 - 20. Which of the following statements is false?
a....Ch. 12 - 21. Match the term on the left with its correct...Ch. 12 - 22. The part of the brain responsible for the...Ch. 12 - Fill in the blanks: Declarative memories are...Ch. 12 - Prob. 24CYRCh. 12 - Huntingtons disease is characterized by a loss of...Ch. 12 - How could you tell the difference between an...Ch. 12 - Why do injuries to the hippocampus interfere with...Ch. 12 - Ms. Norris is brought to the emergency department...Ch. 12 - Prob. 2AYKCh. 12 - Prob. 3AYKCh. 12 - A new diet wonder drug is designed to block the...Ch. 12 - Prob. 5AYK
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- If 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_forwardWhat is somatosensory cortex?arrow_forwardWould you expect the fingertips or the back to be represented by a greater area of the primary somatosensory cortex?Explainarrow_forward
- Identify the location of the cell bodies of second order neurons of the spinothalamic tract? Ventral horn Dorsal root ganglia Dorsal horn Thalamus Medulla Identify the location of the cell bodies of first order neurons of the spinothalamic tract? Ventral horn Dorsal root ganglia Dorsal horn Thalamus Medullaarrow_forwardIn the somatosensory pathway, which of the following neurons carries information from the PNS to the CNS? Group of answer choices First order neuron Third order neuron Second order neuron Specialized receptor cellarrow_forwardWhy Pain differs significantly from the other somatosensory modalities?arrow_forward
- Which part of the cerebral cortex contains the primary somatosensory cortex? a) post central gyrus b) prefrontal cortex c) occipital lovearrow_forwardYou are recording from a touch receptor in skin. When you stimulate a spot on the skin, the receptor fires continuously until you stop the skin stimulation. Which of the following pieces of information would you need to be able to identify what kind of receptor this is? Group of answer choices Whether the area of skin that can activate this receptor is big or small Whether the receptor sends its output to the somatosensory cortex or not You don’t need any more information; you can identify this receptor just from the information provided Whether the touch receptor is connected to an Alpha-Delta fiber or a C-fiberarrow_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
- Two major somatosensory ascending pathways in the spinal cord, for touch and proprioception and pain and temperature, respectively, as discussed in class, are: gracile fasciculus; cuneate fasciculus dorsal column medial lemniscal system; anterolateral system posterior spinocerebellar tract; anterior spinocerebellar tract lateral corticospinal tract; anterior corticospinal tractarrow_forwardThe ____ and ____ are both found deep within fissures of the cerebral cortex. These two regions form a network with the amygdala and hypothalamus. Although they are also involved in other important functions, many modern imaging studies show that they activate simultaneously during the conscious experience of emotional feelings. A) anterior cingulate cortex; anterior insular cortex B) thalamus; hippocampus C) caudate nucleus; globus pallidus D) substancia nigra; ventra tegmental areaarrow_forwardWhat is referred pain, and why do we experience it in this way?arrow_forward
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