Pearson eText Human Anatomy & Physiology -- Instant Access (Pearson+)
2nd Edition
ISBN: 9780136873822
Author: Erin Amerman
Publisher: PEARSON+
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Chapter 12, Problem 13CYR
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
Pearson eText Human Anatomy & Physiology -- Instant Access (Pearson+)
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 - Which two body systems coordinate the maintenance...Ch. 12.3 - Which branch of the PNS controls most of the bodys...Ch. 12.3 - Prob. 3QCCh. 12.3 - Prob. 4QCCh. 12.3 - Prob. 5QCCh. 12.3 - What type of rhythm does human sleep follow?...Ch. 12.3 - 7. What is an electroencephalogram? What is the...Ch. 12.4 - 1. What is cognition? Which part of the brain is...Ch. 12.4 - What is cerebral lateralization? Which functions...Ch. 12.4 - 3. Define language in the context of neurology....Ch. 12.4 - Explain the differences between declarative memory...Ch. 12.4 - 5. How do immediate, short-term, and long-term...Ch. 12.4 - Prob. 6QCCh. 12.5 - 1. What are the three meninges, from superficial...Ch. 12.5 - 2. What are the three spaces (potential and...Ch. 12.5 - Prob. 3QCCh. 12.5 - Prob. 4QCCh. 12.5 - 5. What two factors create the blood brain...Ch. 12.5 - Prob. 6QCCh. 12.6 - Prob. 1QCCh. 12.6 - List and describe the three spinal meninges.Ch. 12.6 - Prob. 3QCCh. 12.6 - Prob. 4QCCh. 12.6 - What is the cauda equina?Ch. 12.6 - Prob. 6QCCh. 12.6 - Prob. 7QCCh. 12.6 - Prob. 8QCCh. 12.7 - 1. Where are the posterior columns and their two...Ch. 12.7 - Prob. 2QCCh. 12.7 - How are touch and pain processed by the cerebral...Ch. 12.7 - 4. How is the processing of olfactory stimuli...Ch. 12.8 - What is the main difference between the...Ch. 12.8 - Where do the fibers of the corticospinal tracts...Ch. 12.8 - Where do upper motor neurons reside, and what are...Ch. 12.8 - What are the two parts of the basal nuclei...Ch. 12.8 - What is the overall function of the cerebellum?Ch. 12.8 - Trace the overall voluntary movement pathway from...Ch. 12 - The central nervous system is responsible for: a....Ch. 12 - Mark the following statements about the brain as...Ch. 12 - 3. Which of the following is not one of the basal...Ch. 12 - 4. Which statement about cerebral white matter is...Ch. 12 - Mark the following statements about the cerebral...Ch. 12 - The central sulcus separates the: a. parietal and...Ch. 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 - 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 - Which of the following somatic sensations is not...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. 2AYKACh. 12 - Prob. 3AYKACh. 12 - A new diet wonder drug is designed to block the...Ch. 12 - Prob. 5AYKB
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- What is somatosensory cortex?arrow_forwardIdentify 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_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_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_forwardTwo 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_forward
- The ____ 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_forwardThe limbic system is composed of several interconnected structures including the olfactory bulbs, amygdala, hypothalamus, hippocampus, parahippocampal gyrus, cingulate gyrus, subcallosal gyrus, septal nuclei, mammillary bodies, and the thalamus. Pair each of these structures with their function listed below: -This limbic area is active when you are trying to memorize the names of brain areas. It is also severely atrophied in people suffering from late stages of Alzheimer’s Disease. -This limbic area is active when you are watching something that makes you feel sad. -This limbic area is active when you feel thirsty. -When the activity of this limbic area is increased you feel a sense of pleasure. -When this limbic area is damaged it often results in patients experiencing anterograde amnesia. -Damage to this limbic structure while rare often results in patients going into a coma. -This cortical limbic structure plays a large role in motivation and movement and has recently been…arrow_forward
- Based on the attached figure (Fig. Box 18B of the textbook), what is the output structure of the basal ganglia for the limbic loop? NON-MOTOR LOOPS Oculomotor loop Prefrontal loop Limbic loop MOTOR LOOPS Body movement loop Primary motor, premotor, supplementary motor cortex Frontal eye field, supplementary eye field Frontal cortex Cortical input Thalamus Pallidum Striatum Motor, premotor, somatosensory cortex Putamen Cortical targets Cortical targets Dorsolateral prefrontal cortex Posterior pariétal, prefrontal cortex Dorsolateral prefrontal cortex Caudate (body) Anterior caudate Cortical targets Anterior cingulate, orbitofrontal cortex Amygdala, hippocampus, orbitofrontal, anterior cingulate, temporal cortex Ventral striatum (nucleus accumbens) Ventral HA Globus pallidus, internal segment Globus pallidus, Internal segment; substantia nigra pars reticulata Globus pallidus, internal segment substantia nigra pars reticulata pallidum Ventral lateral and ventral anterior nuclei Mediodorsal…arrow_forwardSubjecting neurons in the perforant pathway to tetanus stimulation strengthens activity in the dentate gyrus, indicating that long-term potentiation does not occur in the hippocampus. the hippocampus is involved in memory. synapses in the brain do not behave like Hebbian synapses. synapses in the brain can behave like Hebbian synapses.arrow_forwardhow does the somatosensory cortex work?arrow_forward
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